chore: release v3.5.4

- Bump version to 3.5.4; update README and README_CN
- Astralane: irisb binary API (no Base64), POST /irisb with query api-key&method; constants use /irisb endpoints; ping POST getHealth
- BlockRazor: Send Transaction v2 (plain Base64 body, Content-Type text/plain, auth in URI only); ping POST /v2/health; use default_http_client_builder
- SWQOS: all clients use default_http_client_builder (nextblock, temporal, zeroslot, astralane, lightspeed, jito, flashblock); remove unused Duration imports

Made-with: Cursor

.github/workflows/release.yml

@@ -0,0 +1,35 @@
+# 推送 tag（如 v3.4.1）时自动创建 GitHub Release
+name: Release
+
+on:
+  push:
+    tags:
+      - 'v*'
+
+permissions:
+  contents: write
+
+jobs:
+  release:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Get version from tag
+        id: tag
+        run: echo "VERSION=${GITHUB_REF#refs/tags/v}" >> $GITHUB_OUTPUT
+
+      - name: Create Release
+        uses: softprops/action-gh-release@v2
+        with:
+          name: v${{ steps.tag.outputs.VERSION }}
+          body: |
+            ## sol-trade-sdk ${{ steps.tag.outputs.VERSION }}
+            Rust SDK to interact with the dex trade Solana program (Pump.fun, Raydium, etc.).
+            - **Cargo**: `sol-trade-sdk = { git = "https://github.com/${{ github.repository }}", tag = "v${{ steps.tag.outputs.VERSION }}" }`
+          draft: false
+          generate_release_notes: true
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

CHANGELOG_CN.md

@@ -1,21 +0,0 @@
-# 更新日志
-
-## [3.3.6] - 2025-01-30
-
-### 新增
-- **Stellium SWQOS 支持**：全新 Stellium 客户端实现
-  - 使用标准 Solana `sendTransaction` RPC 格式
-  - 自动连接保活，60 秒 ping 间隔
-  - 5 个小费账户用于负载分配
-  - 支持 8 个区域端点（纽约、法兰克福、阿姆斯特丹、东京、伦敦等）
-  - 最低小费要求：0.001 SOL
-
-### 变更
-- **更新最低小费要求**以提高交易成功率：
-  - NextBlock: 0.00001 → 0.001 SOL
-  - ZeroSlot: 0.00001 → 0.001 SOL
-  - Temporal: 0.00001 → 0.001 SOL
-  - BloxRoute: 0.00001 → 0.001 SOL
-  - FlashBlock: 0.00001 → 0.001 SOL
-  - BlockRazor: 0.00001 → 0.001 SOL
-- 增强异步执行器，添加小费验证警告

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "sol-trade-sdk"
-version = "3.4.0"
+version = "3.5.4"
 edition = "2021"
 authors = [
     "William <byteblock6@gmail.com>",
@@ -19,8 +19,6 @@ members = [
     "examples/trading_client",
     "examples/shared_infrastructure",
     "examples/middleware_system",
-    "examples/pumpfun_copy_trading",
-    "examples/pumpfun_sniper_trading",
     "examples/pumpswap_trading",
     "examples/bonk_sniper_trading",
     "examples/bonk_copy_trading",
@@ -81,7 +79,6 @@ rustls = { version = "0.23.23", features = ["ring"] }
 rustls-native-certs = "0.8.1"
 tokio-rustls = "0.26.1"
 core_affinity = "0.8"
-log = "0.4.22"
 chrono = "0.4.39"
 regex = "1"
 tracing = "0.1.41"

README.md

@@ -47,10 +47,11 @@
   - [📋 Example Usage](#-example-usage)
   - [⚡ Trading Parameters](#-trading-parameters)
   - [📊 Usage Examples Summary Table](#-usage-examples-summary-table)
-  - [⚙️ SWQOS Service Configuration](#️-swqos-service-configuration)
+  - [⚙️ SWQoS Service Configuration](#️-swqos-service-configuration)
   - [🔧 Middleware System](#-middleware-system)
   - [🔍 Address Lookup Tables](#-address-lookup-tables)
   - [🔍 Nonce Cache](#-nonce-cache)
+- [💰 Cashback Support (PumpFun / PumpSwap)](#-cashback-support-pumpfun--pumpswap)
 - [🛡️ MEV Protection Services](#️-mev-protection-services)
 - [📁 Project Structure](#-project-structure)
 - [📄 License](#-license)
@@ -71,7 +72,7 @@
 8. **Concurrent Trading**: Send transactions using multiple MEV services simultaneously; the fastest succeeds while others fail
 9. **Unified Trading Interface**: Use unified trading protocol enums for trading operations
 10. **Middleware System**: Support for custom instruction middleware to modify, add, or remove instructions before transaction execution
-11. **Shared Infrastructure**: Share expensive RPC and SWQOS clients across multiple wallets for reduced resource usage
+11. **Shared Infrastructure**: Share expensive RPC and SWQoS clients across multiple wallets for reduced resource usage
 
 ## 📦 Installation
 
@@ -88,14 +89,14 @@ Add the dependency to your `Cargo.toml`:
 
 ```toml
 # Add to your Cargo.toml
-sol-trade-sdk = { path = "./sol-trade-sdk", version = "3.4.0" }
+sol-trade-sdk = { path = "./sol-trade-sdk", version = "3.5.4" }
 ```
 
 ### Use crates.io
 
 ```toml
 # Add to your Cargo.toml
-sol-trade-sdk = "3.4.0"
+sol-trade-sdk = "3.5.4"
 ```
 
 ## 🛠️ Usage Examples
@@ -113,7 +114,7 @@ let payer = Keypair::from_base58_string("use_your_payer_keypair_here");
 // RPC URL
 let rpc_url = "https://mainnet.helius-rpc.com/?api-key=xxxxxx".to_string();
 let commitment = CommitmentConfig::processed();
-// Multiple SWQOS services can be configured
+// Multiple SWQoS services can be configured
 let swqos_configs: Vec<SwqosConfig> = vec![
     SwqosConfig::Default(rpc_url.clone()),
     SwqosConfig::Jito("your uuid".to_string(), SwqosRegion::Frankfurt, None),
@@ -122,6 +123,10 @@ let swqos_configs: Vec<SwqosConfig> = vec![
 // Create TradeConfig instance
 let trade_config = TradeConfig::new(rpc_url, swqos_configs, commitment);
 
+// Optional: customize WSOL ATA and seed optimization
+// let trade_config = TradeConfig::new(rpc_url, swqos_configs, commitment)
+//     .with_wsol_ata_config(true, true);  // create_wsol_ata_on_startup, use_seed_optimize
+
 // Create TradingClient
 let client = TradingClient::new(Arc::new(payer), trade_config).await;
 ```
@@ -218,16 +223,16 @@ Please ensure that the parameters your trading logic depends on are available in
 | Seed trading example | `cargo run --package seed_trading` | [examples/seed_trading](https://github.com/0xfnzero/sol-trade-sdk/tree/main/examples/seed_trading/src/main.rs) |
 | Gas fee strategy example | `cargo run --package gas_fee_strategy` | [examples/gas_fee_strategy](https://github.com/0xfnzero/sol-trade-sdk/tree/main/examples/gas_fee_strategy/src/main.rs) |
 
-### ⚙️ SWQOS Service Configuration
+### ⚙️ SWQoS Service Configuration
 
-When configuring SWQOS services, note the different parameter requirements for each service:
+When configuring SWQoS services, note the different parameter requirements for each service:
 
 - **Jito**: The first parameter is UUID (if no UUID, pass an empty string `""`)
 - **Other MEV services**: The first parameter is the API Token
 
 #### Custom URL Support
 
-Each SWQOS service now supports an optional custom URL parameter:
+Each SWQoS service now supports an optional custom URL parameter:
 
 ```rust
 // Using custom URL (third parameter)
@@ -273,6 +278,17 @@ Address Lookup Tables (ALT) allow you to optimize transaction size and reduce fe
 
 Use Durable Nonce to implement transaction replay protection and optimize transaction processing. For detailed information, see the [Durable Nonce Guide](docs/NONCE_CACHE.md).
 
+## 💰 Cashback Support (PumpFun / PumpSwap)
+
+PumpFun and PumpSwap support **cashback** for eligible tokens: part of the trading fee can be returned to the user. The SDK **must know** whether the token has cashback enabled so that buy/sell instructions include the correct accounts (e.g. `UserVolumeAccumulator` as remaining account for cashback coins).
+
+- **When params come from RPC**: If you use `PumpFunParams::from_mint_by_rpc` or `PumpSwapParams::from_pool_address_by_rpc` / `from_mint_by_rpc`, the SDK reads `is_cashback_coin` from chain—no extra step.
+- **When params come from event/parser**: If you build params from trade events (e.g. [sol-parser-sdk](https://github.com/0xfnzero/sol-parser-sdk)), you **must** pass the cashback flag into the SDK:
+  - **PumpFun**: `PumpFunParams::from_trade(..., is_cashback_coin)` and `PumpFunParams::from_dev_trade(..., is_cashback_coin)` take an `is_cashback_coin` parameter. Set it from the parsed event (e.g. CreateEvent’s `is_cashback_enabled` or BondingCurve’s `is_cashback_coin`).
+  - **PumpSwap**: `PumpSwapParams` has a field `is_cashback_coin`. When constructing params manually (e.g. from pool/trade events), set it from the parsed pool or event data.
+- The **pumpfun_copy_trading** and **pumpfun_sniper_trading** examples use sol-parser-sdk for gRPC subscription and pass `e.is_cashback_coin` when building params.
+- **Claim**: Use `client.claim_cashback_pumpfun()` and `client.claim_cashback_pumpswap(...)` to claim accumulated cashback.
+
 ## 🛡️ MEV Protection Services
 
 You can apply for a key through the official website: [Community Website](https://fnzero.dev/swqos)

README_CN.md

@@ -47,10 +47,11 @@
   - [📋 使用示例](#-使用示例)
   - [⚡ 交易参数](#-交易参数)
   - [📊 使用示例汇总表格](#-使用示例汇总表格)
-  - [⚙️ SWQOS 服务配置说明](#️-swqos-服务配置说明)
+  - [⚙️ SWQoS 服务配置说明](#️-swqos-服务配置说明)
   - [🔧 中间件系统说明](#-中间件系统说明)
   - [🔍 地址查找表](#-地址查找表)
   - [🔍 Nonce 缓存](#-nonce-缓存)
+- [💰 Cashback 支持（PumpFun / PumpSwap）](#-cashback-支持pumpfun--pumpswap)
 - [🛡️ MEV 保护服务](#️-mev-保护服务)
 - [📁 项目结构](#-项目结构)
 - [📄 许可证](#-许可证)
@@ -71,6 +72,7 @@
 8. **并发交易**: 同时使用多个 MEV 服务发送交易，最快的成功，其他失败
 9. **统一交易接口**: 使用统一的交易协议枚举进行交易操作
 10. **中间件系统**: 支持自定义指令中间件，可在交易执行前对指令进行修改、添加或移除
+11. **共享基础设施**: 多钱包可共享同一套 RPC 与 SWQoS 客户端，降低资源占用
 
 ## 📦 安装
 
@@ -87,14 +89,14 @@ git clone https://github.com/0xfnzero/sol-trade-sdk
 
 ```toml
 # 添加到您的 Cargo.toml
-sol-trade-sdk = { path = "./sol-trade-sdk", version = "3.4.0" }
+sol-trade-sdk = { path = "./sol-trade-sdk", version = "3.5.4" }
 ```
 
 ### 使用 crates.io
 
 ```toml
 # 添加到您的 Cargo.toml
-sol-trade-sdk = "3.4.0"
+sol-trade-sdk = "3.5.4"
 ```
 
 ## 🛠️ 使用示例
@@ -103,40 +105,46 @@ sol-trade-sdk = "3.4.0"
 
 #### 1. 创建 TradingClient 实例
 
-可以参考 [示例：创建 TradingClient 实例](examples/trading_client/src/main.rs)。
+可参考 [示例：创建 TradingClient 实例](examples/trading_client/src/main.rs)。
 
+**方式一：简单创建（单钱包）**
 ```rust
 // 钱包
 let payer = Keypair::from_base58_string("use_your_payer_keypair_here");
 // RPC 地址
 let rpc_url = "https://mainnet.helius-rpc.com/?api-key=xxxxxx".to_string();
 let commitment = CommitmentConfig::processed();
-// 可以配置多个SWQOS服务
+// 可配置多个 SWQoS 服务
 let swqos_configs: Vec<SwqosConfig> = vec![
     SwqosConfig::Default(rpc_url.clone()),
     SwqosConfig::Jito("your uuid".to_string(), SwqosRegion::Frankfurt, None),
     SwqosConfig::Bloxroute("your api_token".to_string(), SwqosRegion::Frankfurt, None),
-    SwqosConfig::ZeroSlot("your api_token".to_string(), SwqosRegion::Frankfurt, None),
-    SwqosConfig::Temporal("your api_token".to_string(), SwqosRegion::Frankfurt, None),
-    SwqosConfig::FlashBlock("your api_token".to_string(), SwqosRegion::Frankfurt, None),
-    SwqosConfig::Node1("your api_token".to_string(), SwqosRegion::Frankfurt, None),
-    SwqosConfig::BlockRazor("your api_token".to_string(), SwqosRegion::Frankfurt, None),
-    SwqosConfig::Astralane("your api_token".to_string(), SwqosRegion::Frankfurt, None),
 ];
 // 创建 TradeConfig 实例
 let trade_config = TradeConfig::new(rpc_url, swqos_configs, commitment);
 
-// 可选：自定义 WSOL ATA 和 Seed 优化设置
+// 可选：自定义 WSOL ATA 与 Seed 优化
 // let trade_config = TradeConfig::new(rpc_url, swqos_configs, commitment)
-//     .with_wsol_ata_config(
+//     .with_wsol_ata_config(true, true);  // create_wsol_ata_on_startup, use_seed_optimize
-//         true,  // create_wsol_ata_on_startup: 启动时检查并创建 WSOL ATA（默认: true）
-//         true   // use_seed_optimize: 全局启用所有 ATA 操作的 seed 优化（默认: true）
-//     );
 
-// 创建 TradingClient 客户端
+// 创建 TradingClient
 let client = TradingClient::new(Arc::new(payer), trade_config).await;
 ```
 
+**方式二：共享基础设施（多钱包）**
+
+多钱包场景下可先创建一份基础设施，再复用到多个钱包。参见 [示例：共享基础设施](examples/shared_infrastructure/src/main.rs)。
+
+```rust
+// 创建一次基础设施（开销较大）
+let infra_config = InfrastructureConfig::new(rpc_url, swqos_configs, commitment);
+let infrastructure = Arc::new(TradingInfrastructure::new(infra_config).await);
+
+// 基于同一基础设施创建多个客户端（开销小）
+let client1 = TradingClient::from_infrastructure(Arc::new(payer1), infrastructure.clone(), true);
+let client2 = TradingClient::from_infrastructure(Arc::new(payer2), infrastructure.clone(), true);
+```
+
 #### 2. 配置 Gas Fee 策略
 
 有关 Gas Fee 策略的详细信息，请参阅 [Gas Fee 策略参考手册](docs/GAS_FEE_STRATEGY_CN.md)。
@@ -198,6 +206,7 @@ client.buy(buy_params).await?;
 | 描述 | 运行命令 | 源码路径 |
 |------|---------|----------|
 | 创建和配置 TradingClient 实例 | `cargo run --package trading_client` | [examples/trading_client](https://github.com/0xfnzero/sol-trade-sdk/tree/main/examples/trading_client/src/main.rs) |
+| 多钱包共享基础设施 | `cargo run --package shared_infrastructure` | [examples/shared_infrastructure](https://github.com/0xfnzero/sol-trade-sdk/tree/main/examples/shared_infrastructure/src/main.rs) |
 | PumpFun 代币狙击交易 | `cargo run --package pumpfun_sniper_trading` | [examples/pumpfun_sniper_trading](https://github.com/0xfnzero/sol-trade-sdk/tree/main/examples/pumpfun_sniper_trading/src/main.rs) |
 | PumpFun 代币跟单交易 | `cargo run --package pumpfun_copy_trading` | [examples/pumpfun_copy_trading](https://github.com/0xfnzero/sol-trade-sdk/tree/main/examples/pumpfun_copy_trading/src/main.rs) |
 | PumpSwap 交易操作 | `cargo run --package pumpswap_trading` | [examples/pumpswap_trading](https://github.com/0xfnzero/sol-trade-sdk/tree/main/examples/pumpswap_trading/src/main.rs) |
@@ -213,16 +222,16 @@ client.buy(buy_params).await?;
 | Seed 优化交易示例 | `cargo run --package seed_trading` | [examples/seed_trading](https://github.com/0xfnzero/sol-trade-sdk/tree/main/examples/seed_trading/src/main.rs) |
 | Gas费用策略示例 | `cargo run --package gas_fee_strategy` | [examples/gas_fee_strategy](https://github.com/0xfnzero/sol-trade-sdk/tree/main/examples/gas_fee_strategy/src/main.rs) |
 
-### ⚙️ SWQOS 服务配置说明
+### ⚙️ SWQoS 服务配置说明
 
-在配置 SWQOS 服务时，需要注意不同服务的参数要求：
+在配置 SWQoS 服务时，需要注意不同服务的参数要求：
 
 - **Jito**: 第一个参数为 UUID（如无 UUID 请传入空字符串 `""`）
 - 其他的MEV服务，第一个参数为 API Token
 
 #### 自定义 URL 支持
 
-每个 SWQOS 服务现在都支持可选的自定义 URL 参数：
+每个 SWQoS 服务现在都支持可选的自定义 URL 参数：
 
 ```rust
 // 使用自定义 URL（第三个参数）
@@ -268,6 +277,17 @@ let middleware_manager = MiddlewareManager::new()
 
 使用 Durable Nonce 来实现交易重放保护和优化交易处理。详细信息请参阅 [Nonce 使用指南](docs/NONCE_CACHE_CN.md)。
 
+## 💰 Cashback 支持（PumpFun / PumpSwap）
+
+PumpFun 与 PumpSwap 支持**返现（Cashback）**：部分手续费可返还给用户。SDK **必须知道**该代币是否开启返现，才能为 buy/sell 指令传入正确的账户（例如返现代币需要把 `UserVolumeAccumulator` 作为 remaining account）。
+
+- **参数来自 RPC 时**：使用 `PumpFunParams::from_mint_by_rpc` 或 `PumpSwapParams::from_pool_address_by_rpc` / `from_mint_by_rpc` 时，SDK 会从链上读取 `is_cashback_coin`，无需额外传入。
+- **参数来自事件/解析器时**：若根据交易事件（如 [sol-parser-sdk](https://github.com/0xfnzero/sol-parser-sdk)）构建参数，**必须**把返现标志传给 SDK：
+  - **PumpFun**：`PumpFunParams::from_trade(..., is_cashback_coin)` 与 `PumpFunParams::from_dev_trade(..., is_cashback_coin)` 最后一个参数为 `is_cashback_coin`。从解析出的事件传入（如 sol-parser-sdk 的 `PumpFunTradeEvent.is_cashback_coin`）。
+  - **PumpSwap**：`PumpSwapParams` 有字段 `is_cashback_coin`。手动构造参数（如从池/交易事件）时，从解析到的池或事件数据中设置该字段。
+- **pumpfun_copy_trading**、**pumpfun_sniper_trading** 示例使用 sol-parser-sdk 订阅 gRPC 事件，并在构造参数时传入 `e.is_cashback_coin`。
+- **领取返现**：使用 `client.claim_cashback_pumpfun()` 和 `client.claim_cashback_pumpswap(...)` 领取累计的返现。
+
 ## 🛡️ MEV 保护服务
 
 可以通过官网申请密钥：[社区官网](https://fnzero.dev/swqos)

context7.json

@@ -0,0 +1,4 @@
+{
+  "url": "https://context7.com/0xfnzero/sol-trade-sdk",
+  "public_key": "pk_ShleAZazFTUV8ORpmH4jy"
+}

docs/PUMP_CASHBACK_README.md

@@ -0,0 +1,74 @@
+# Pump Cashback 集成说明
+
+本 SDK 已支持 [Pump Cashback Rewards](https://github.com/pump-fun/pump-public-docs/blob/main/docs/PUMP_CASHBACK_README.md)：在启用 cashback 的币种上交易时，用户可获得手续费返还而非支付给创作者。
+
+## 行为概览
+
+- **Bonding Curve (Pump)**
+  - **Buy**：无需改指令，若币种启用 cashback 会自动累计。
+  - **Sell**：当 `bonding_curve.is_cashback_coin == true` 时，SDK 会在指令中追加 `UserVolumeAccumulator` PDA（remaining account），用于累计可领取的 cashback。
+- **Pump Swap**
+  - **Buy**：当 `PumpSwapParams.is_cashback_coin == true` 时，会追加 UserVolumeAccumulator 的 **WSOL ATA** 作为 remaining account。
+  - **Sell**：当 `is_cashback_coin == true` 时，会追加 **WSOL ATA**（0th）和 **UserVolumeAccumulator PDA**（1st）作为 remaining accounts。
+
+`PumpFunParams` 通过 `from_mint_by_rpc` 拉取 bonding curve 时会解析链上 `is_cashback_coin`；`PumpSwapParams` 通过 `from_pool_address_by_rpc` / `from_mint_by_rpc` 拉取 pool 时会解析 `is_cashback_coin`。
+
+## 领取 Cashback
+
+### 推荐：使用 TradingClient 一键领取
+
+若已有 `TradingClient`（例如用于买卖的同一个客户端），可直接调用以下方法，内部会完成构建交易、签名与发送：
+
+```rust
+// 领取 Pump 曲线产生的 Cashback（到账为 native SOL）
+let sig = client.claim_cashback_pumpfun().await?;
+
+// 领取 PumpSwap 产生的 Cashback（到账为 WSOL，自动确保用户 WSOL ATA 存在）
+let sig = client.claim_cashback_pumpswap().await?;
+```
+
+- **`claim_cashback_pumpfun()`**：领取 Bonding Curve (Pump) 的返还，到账为钱包 SOL。
+- **`claim_cashback_pumpswap()`**：领取 PumpSwap (AMM) 的返还，到账为用户的 WSOL ATA；若用户尚无 WSOL ATA 会先自动创建再领取。
+
+### 仅构建指令（自行组交易时使用）
+
+#### Bonding Curve (Pump)
+
+将 native lamports 从 UserVolumeAccumulator 转到用户钱包：
+
+```rust
+use sol_trade_sdk::instruction::pumpfun;
+
+let ix = pumpfun::claim_cashback_pumpfun_instruction(&payer.pubkey());
+// 将 ix 放入交易并发送
+```
+
+#### Pump Swap (AMM)
+
+将 WSOL 从 UserVolumeAccumulator 的 WSOL ATA 转到用户的 WSOL ATA。**调用前需确保用户 WSOL ATA 已存在**（或使用上面的 `claim_cashback_pumpswap()` 会自动处理）：
+
+```rust
+use sol_trade_sdk::instruction::pumpswap;
+use sol_trade_sdk::constants::WSOL_TOKEN_ACCOUNT;
+use sol_trade_sdk::constants::TOKEN_PROGRAM;
+
+let ix = pumpswap::claim_cashback_pumpswap_instruction(
+    &payer.pubkey(),
+    WSOL_TOKEN_ACCOUNT,
+    TOKEN_PROGRAM,
+);
+```
+
+## 读取未领取金额
+
+- **Pump (Bonding Curve)**：读 Pump 程序的 `UserVolumeAccumulator` PDA 的 lamports，减去维持账户所需的 rent-exempt 金额，即为未领取 cashback（lamports）。
+- **Pump Swap**：读 Pump AMM 程序的 UserVolumeAccumulator 的 **WSOL ATA** 的 token balance，即为未领取 cashback（WSOL 数量）。
+
+PDA 推导（本 SDK 已实现）：
+
+- Pump：`instruction::utils::pumpfun::get_user_volume_accumulator_pda(user)`
+- Pump AMM：`instruction::utils::pumpswap::get_user_volume_accumulator_pda(user)`，WSOL ATA：`instruction::utils::pumpswap::get_user_volume_accumulator_wsol_ata(user)`
+
+## IDL 来源
+
+根目录 `idl/` 下的 `pump.json`、`pump_amm.json`、`pump_fees.json` 从 [pump-fun/pump-public-docs](https://github.com/pump-fun/pump-public-docs) 的 `idl` 目录同步，便于与官方 IDL 对照和后续升级。

examples/address_lookup/src/main.rs

@@ -143,13 +143,14 @@ async fn pumpfun_copy_trade_with_grpc(trade_info: PumpFunTradeEvent) -> AnyResul
             trade_info.mint,
             trade_info.creator,
             trade_info.creator_vault,
-            trade_info.virtual_sol_reserves,
+            trade_info.virtual_token_reserves,
             trade_info.virtual_sol_reserves,
             trade_info.real_token_reserves,
             trade_info.real_sol_reserves,
             None,
             trade_info.fee_recipient,
             trade_info.token_program,
+            false, // is_cashback_coin: set from event/parser when available
         )),
         address_lookup_table_account: address_lookup_table_account,
         wait_transaction_confirmed: true,

examples/nonce_cache/src/main.rs

@@ -150,6 +150,7 @@ async fn pumpfun_copy_trade_with_grpc(trade_info: PumpFunTradeEvent) -> AnyResul
             None,
             trade_info.fee_recipient,
             trade_info.token_program,
+            false, // is_cashback_coin: set from event/parser when available
         )),
         address_lookup_table_account: None,
         wait_transaction_confirmed: true,

examples/pumpfun_copy_trading/Cargo.toml

@@ -5,7 +5,7 @@ edition = "2021"
 
 [dependencies]
 sol-trade-sdk = { path = "../.." }
-solana-streamer-sdk = "0.5.0"
+sol-parser-sdk = { path = "../../../sol-parser-sdk" }
 solana-sdk = "3.0.0"
 solana-commitment-config = { version = "3.0.0", features = ["serde"] }
 tokio = { version = "1", features = ["full"] }

examples/pumpfun_copy_trading/src/main.rs

@@ -1,8 +1,14 @@
-use std::sync::{
+//! PumpFun 跟单示例（仅使用 sol-parser-sdk 订阅 gRPC 事件）
-    atomic::{AtomicBool, Ordering},
+//!
-    Arc,
+//! 收到 PumpFun 买卖事件后，用事件中的参数（含 is_cashback_coin）构造交易并执行一次买+卖。
-};
 
+use std::sync::{atomic::{AtomicBool, Ordering}, Arc};
+
+use sol_parser_sdk::grpc::{
+    AccountFilter, ClientConfig, EventType, EventTypeFilter, OrderMode, Protocol,
+    TransactionFilter, YellowstoneGrpc,
+};
+use sol_parser_sdk::DexEvent;
 use sol_trade_sdk::common::{
     fast_fn::get_associated_token_address_with_program_id_fast_use_seed, TradeConfig,
 };
@@ -16,143 +22,128 @@ use sol_trade_sdk::{
 use solana_commitment_config::CommitmentConfig;
 use solana_sdk::signature::Keypair;
 use solana_sdk::signer::Signer;
-use solana_streamer_sdk::match_event;
-use solana_streamer_sdk::streaming::event_parser::common::filter::EventTypeFilter;
-use solana_streamer_sdk::streaming::event_parser::common::EventType;
-use solana_streamer_sdk::streaming::event_parser::protocols::pumpfun::parser::PUMPFUN_PROGRAM_ID;
-use solana_streamer_sdk::streaming::event_parser::protocols::pumpfun::PumpFunTradeEvent;
-use solana_streamer_sdk::streaming::event_parser::{Protocol, UnifiedEvent};
-use solana_streamer_sdk::streaming::yellowstone_grpc::{AccountFilter, TransactionFilter};
-use solana_streamer_sdk::streaming::YellowstoneGrpc;
 
-// Global static flag to ensure transaction is executed only once
 static ALREADY_EXECUTED: AtomicBool = AtomicBool::new(false);
 
 #[tokio::main]
 async fn main() -> Result<(), Box<dyn std::error::Error>> {
-    println!("Subscribing to GRPC events...");
+    let _ = rustls::crypto::ring::default_provider().install_default();
+    println!("PumpFun 跟单示例（sol-parser-sdk gRPC）...");
 
-    let grpc = YellowstoneGrpc::new(
+    let config = ClientConfig {
-        "https://solana-yellowstone-grpc.publicnode.com:443".to_string(),
+        enable_metrics: false,
-        None,
+        connection_timeout_ms: 10000,
-    )?;
+        request_timeout_ms: 30000,
-
+        enable_tls: true,
-    let callback = create_event_callback();
+        order_mode: OrderMode::Unordered,
-    let protocols = vec![Protocol::PumpFun];
+        ..Default::default()
-    // Filter accounts
-    let account_include = vec![
-        PUMPFUN_PROGRAM_ID.to_string(), // Listen to pumpfun program ID
-    ];
-    let account_exclude = vec![];
-    let account_required = vec![];
-
-    // Listen to transaction data
-    let transaction_filter = TransactionFilter {
-        account_include: account_include.clone(),
-        account_exclude,
-        account_required,
     };
 
-    // Listen to account data belonging to owner programs -> account event monitoring
+    let grpc_endpoint = std::env::var("GRPC_ENDPOINT")
-    let account_filter = AccountFilter { account: vec![], owner: vec![], filters: vec![] };
+        .unwrap_or_else(|_| "https://solana-yellowstone-grpc.publicnode.com:443".to_string());
+    let grpc = YellowstoneGrpc::new_with_config(
+        grpc_endpoint.clone(),
+        std::env::var("GRPC_AUTH_TOKEN").ok(),
+        config,
+    )?;
 
-    // listen to specific event type
+    let protocols = vec![Protocol::PumpFun];
-    let event_type_filter =
+    let transaction_filter = TransactionFilter::for_protocols(&protocols);
-        EventTypeFilter { include: vec![EventType::PumpFunBuy, EventType::PumpFunSell] };
+    let account_filter = AccountFilter::for_protocols(&protocols);
+    let event_filter = EventTypeFilter::include_only(vec![
+        EventType::PumpFunBuy,
+        EventType::PumpFunSell,
+        EventType::PumpFunBuyExactSolIn,
+        EventType::PumpFunTrade,
+    ]);
 
-    grpc.subscribe_events_immediate(
+    let queue = grpc
-        protocols,
+        .subscribe_dex_events(vec![transaction_filter], vec![account_filter], Some(event_filter))
-        None,
+        .await?;
-        vec![transaction_filter],
+
-        vec![account_filter],
+    println!("订阅已启动，等待一条 PumpFun 交易后执行跟单（仅一次）...\n");
-        Some(event_type_filter),
+
-        None,
+    loop {
-        callback,
+        if let Some(event) = queue.pop() {
-    )
+            let run = match &event {
-    .await?;
+                DexEvent::PumpFunBuy(e) | DexEvent::PumpFunSell(e) | DexEvent::PumpFunBuyExactSolIn(e) => {
+                    if !ALREADY_EXECUTED.swap(true, Ordering::SeqCst) {
+                        Some(e.clone())
+                    } else {
+                        None
+                    }
+                }
+                DexEvent::PumpFunTrade(e) => {
+                    if !ALREADY_EXECUTED.swap(true, Ordering::SeqCst) {
+                        Some(e.clone())
+                    } else {
+                        None
+                    }
+                }
+                _ => None,
+            };
+            if let Some(e) = run {
+                tokio::spawn(async move {
+                    if let Err(err) = pumpfun_copy_trade(e).await {
+                        eprintln!("跟单执行错误: {:?}", err);
+                        std::process::exit(1);
+                    }
+                    std::process::exit(0);
+                });
+                break;
+            }
+        } else {
+            tokio::time::sleep(tokio::time::Duration::from_millis(5)).await;
+        }
+    }
 
     tokio::signal::ctrl_c().await?;
-
     Ok(())
 }
 
-/// Create an event callback function that handles different types of events
-fn create_event_callback() -> impl Fn(Box<dyn UnifiedEvent>) {
-    |event: Box<dyn UnifiedEvent>| {
-        match_event!(event, {
-            PumpFunTradeEvent => |e: PumpFunTradeEvent| {
-                // Test code, only test one transaction
-                if !ALREADY_EXECUTED.swap(true, Ordering::SeqCst) {
-                    let event_clone = e.clone();
-                    tokio::spawn(async move {
-                        if let Err(err) = pumpfun_copy_trade_with_grpc(event_clone).await {
-                            eprintln!("Error in copy trade: {:?}", err);
-                            std::process::exit(0);
-                        }
-                    });
-                }
-            },
-        });
-    }
-}
-
-/// Create SolanaTrade client
-/// Initializes a new SolanaTrade client with configuration
 async fn create_solana_trade_client() -> AnyResult<SolanaTrade> {
-    println!("🚀 Initializing SolanaTrade client...");
     let payer = Keypair::from_base58_string("use_your_payer_keypair_here");
-    let rpc_url = "https://api.mainnet-beta.solana.com".to_string();
+    let rpc_url = std::env::var("RPC_URL").unwrap_or_else(|_| "https://api.mainnet-beta.solana.com".to_string());
     let commitment = CommitmentConfig::confirmed();
     let swqos_configs: Vec<SwqosConfig> = vec![SwqosConfig::Default(rpc_url.clone())];
     let trade_config = TradeConfig::new(rpc_url, swqos_configs, commitment);
-    let solana_trade = SolanaTrade::new(Arc::new(payer), trade_config).await;
+    Ok(SolanaTrade::new(Arc::new(payer), trade_config).await)
-    println!("✅ SolanaTrade client initialized successfully!");
-    Ok(solana_trade)
 }
 
-/// PumpFun sniper trade
+async fn pumpfun_copy_trade(
-/// This function demonstrates how to snipe a new token from a PumpFun trade event
+    e: sol_parser_sdk::core::events::PumpFunTradeEvent,
-async fn pumpfun_copy_trade_with_grpc(trade_info: PumpFunTradeEvent) -> AnyResult<()> {
+) -> AnyResult<()> {
-    println!("Testing PumpFun trading...");
-
     let client = create_solana_trade_client().await?;
-    let mint_pubkey = trade_info.mint;
+    let mint_pubkey = e.mint;
-    let slippage_basis_points = Some(100);
+    let slippage_basis_points = Some(100u64);
     let recent_blockhash = client.infrastructure.rpc.get_latest_blockhash().await?;
 
     let gas_fee_strategy = sol_trade_sdk::common::GasFeeStrategy::new();
-    gas_fee_strategy.set_global_fee_strategy(
+    gas_fee_strategy.set_global_fee_strategy(150000, 150000, 500000, 500000, 0.001, 0.001);
-        150000,
-        150000,
-        500000,
-        500000,
-        0.001,
-        0.001,
-    );
 
-    // Buy tokens
+    // 买入：使用事件参数，含 is_cashback_coin（来自 sol-parser-sdk 解析）
-    println!("Buying tokens from PumpFun...");
+    let buy_sol_amount = 100_000u64;
-    let buy_sol_amount = 100_000;
     let buy_params = sol_trade_sdk::TradeBuyParams {
         dex_type: DexType::PumpFun,
         input_token_type: TradeTokenType::SOL,
         mint: mint_pubkey,
         input_token_amount: buy_sol_amount,
-        slippage_basis_points: slippage_basis_points,
+        slippage_basis_points,
         recent_blockhash: Some(recent_blockhash),
         extension_params: DexParamEnum::PumpFun(PumpFunParams::from_trade(
-            trade_info.bonding_curve,
+            e.bonding_curve,
-            trade_info.associated_bonding_curve,
+            e.associated_bonding_curve,
-            trade_info.mint,
+            e.mint,
-            trade_info.creator,
+            e.creator,
-            trade_info.creator_vault,
+            e.creator_vault,
-            trade_info.virtual_token_reserves,
+            e.virtual_token_reserves,
-            trade_info.virtual_sol_reserves,
+            e.virtual_sol_reserves,
-            trade_info.real_token_reserves,
+            e.real_token_reserves,
-            trade_info.real_sol_reserves,
+            e.real_sol_reserves,
             None,
-            trade_info.fee_recipient,
+            e.fee_recipient,
-            trade_info.token_program,
+            e.token_program,
+            e.is_cashback_coin,
         )),
         address_lookup_table_account: None,
         wait_transaction_confirmed: true,
@@ -167,43 +158,40 @@ async fn pumpfun_copy_trade_with_grpc(trade_info: PumpFunTradeEvent) -> AnyResul
     };
     client.buy(buy_params).await?;
 
-    // Sell tokens
+    // 卖出：查询余额后卖出，同样传入 is_cashback_coin
-    println!("Selling tokens from PumpFun...");
-
     let rpc = client.infrastructure.rpc.clone();
     let payer = client.payer.pubkey();
     let account = get_associated_token_address_with_program_id_fast_use_seed(
         &payer,
         &mint_pubkey,
-        &trade_info.token_program,
+        &e.token_program,
         client.use_seed_optimize,
     );
     let balance = rpc.get_token_account_balance(&account).await?;
-    println!("Balance: {:?}", balance);
     let amount_token = balance.amount.parse::<u64>().unwrap();
 
-    println!("Selling {} tokens", amount_token);
     let sell_params = sol_trade_sdk::TradeSellParams {
         dex_type: DexType::PumpFun,
         output_token_type: TradeTokenType::SOL,
         mint: mint_pubkey,
         input_token_amount: amount_token,
-        slippage_basis_points: slippage_basis_points,
+        slippage_basis_points,
         recent_blockhash: Some(recent_blockhash),
         with_tip: false,
         extension_params: DexParamEnum::PumpFun(PumpFunParams::from_trade(
-            trade_info.bonding_curve,
+            e.bonding_curve,
-            trade_info.associated_bonding_curve,
+            e.associated_bonding_curve,
-            trade_info.mint,
+            e.mint,
-            trade_info.creator,
+            e.creator,
-            trade_info.creator_vault,
+            e.creator_vault,
-            trade_info.virtual_token_reserves,
+            e.virtual_token_reserves,
-            trade_info.virtual_sol_reserves,
+            e.virtual_sol_reserves,
-            trade_info.real_token_reserves,
+            e.real_token_reserves,
-            trade_info.real_sol_reserves,
+            e.real_sol_reserves,
             Some(true),
-            trade_info.fee_recipient,
+            e.fee_recipient,
-            trade_info.token_program,
+            e.token_program,
+            e.is_cashback_coin,
         )),
         address_lookup_table_account: None,
         wait_transaction_confirmed: true,
@@ -212,14 +200,11 @@ async fn pumpfun_copy_trade_with_grpc(trade_info: PumpFunTradeEvent) -> AnyResul
         close_mint_token_ata: false,
         durable_nonce: None,
         fixed_output_token_amount: None,
-        gas_fee_strategy: gas_fee_strategy,
+        gas_fee_strategy,
         simulate: false,
     };
     client.sell(sell_params).await?;
 
-    // PumpFunParams can also be set as PumpFunParams::immediate_sell(creator_vault, close_token_account_when_sell)
+    println!("跟单一次买+卖完成");
-    // creator_vault can be obtained from the trade event
+    Ok(())
-
-    // Exit program
-    std::process::exit(0);
 }

examples/pumpfun_sniper_trading/Cargo.toml

@@ -5,7 +5,7 @@ edition = "2021"
 
 [dependencies]
 sol-trade-sdk = { path = "../.." }
-solana-streamer-sdk = "0.5.0"
+sol-parser-sdk = { path = "../../../sol-parser-sdk" }
 solana-sdk = "3.0.0"
 solana-commitment-config = { version = "3.0.0", features = ["serde"] }
 tokio = { version = "1", features = ["full"] }

examples/pumpfun_sniper_trading/src/main.rs

@@ -1,3 +1,15 @@
+//! PumpFun 狙击示例（仅使用 sol-parser-sdk 订阅 gRPC 事件）
+//!
+//! 监听创建者首次买入（Create 后同笔/首笔 Buy，is_created_buy == true），
+//! 用事件参数（含 is_cashback_coin）构造 from_dev_trade 并执行一次买+卖。
+
+use std::sync::{atomic::{AtomicBool, Ordering}, Arc};
+
+use sol_parser_sdk::grpc::{
+    AccountFilter, ClientConfig, EventType, EventTypeFilter, OrderMode, Protocol,
+    TransactionFilter, YellowstoneGrpc,
+};
+use sol_parser_sdk::DexEvent;
 use sol_trade_sdk::common::spl_associated_token_account::get_associated_token_address;
 use sol_trade_sdk::common::TradeConfig;
 use sol_trade_sdk::TradeTokenType;
@@ -10,108 +22,120 @@ use sol_trade_sdk::{
 use solana_commitment_config::CommitmentConfig;
 use solana_sdk::signature::Keypair;
 use solana_sdk::signer::Signer;
-use solana_streamer_sdk::streaming::event_parser::common::filter::EventTypeFilter;
-use solana_streamer_sdk::streaming::event_parser::common::EventType;
-use solana_streamer_sdk::streaming::event_parser::protocols::pumpfun::PumpFunTradeEvent;
-use solana_streamer_sdk::streaming::event_parser::{Protocol, UnifiedEvent};
-use solana_streamer_sdk::{match_event, streaming::ShredStreamGrpc};
-use std::sync::{
-    atomic::{AtomicBool, Ordering},
-    Arc,
-};
 
-/// Atomic flag to ensure the sniper trade is executed only once
 static ALREADY_EXECUTED: AtomicBool = AtomicBool::new(false);
 
-/// Main entry point - subscribes to PumpFun events and executes sniper trades on token creation
 #[tokio::main]
 async fn main() -> Result<(), Box<dyn std::error::Error>> {
-    println!("Subscribing to ShredStream events...");
+    let _ = rustls::crypto::ring::default_provider().install_default();
-    let shred_stream = ShredStreamGrpc::new("use_your_shred_stream_url_here".to_string()).await?;
+    println!("PumpFun 狙击示例（sol-parser-sdk gRPC）...");
-    let callback = create_event_callback();
+
-    let protocols = vec![Protocol::PumpFun];
+    let config = ClientConfig {
-    let event_type_filter = EventTypeFilter {
+        enable_metrics: false,
-        include: vec![EventType::PumpFunBuy, EventType::PumpFunSell, EventType::PumpFunCreateToken],
+        connection_timeout_ms: 10000,
+        request_timeout_ms: 30000,
+        enable_tls: true,
+        order_mode: OrderMode::Unordered,
+        ..Default::default()
     };
-    println!("Starting to listen for events, press Ctrl+C to stop...");
+
-    shred_stream.shredstream_subscribe(protocols, None, Some(event_type_filter), callback).await?;
+    let grpc_endpoint = std::env::var("GRPC_ENDPOINT")
+        .unwrap_or_else(|_| "https://solana-yellowstone-grpc.publicnode.com:443".to_string());
+    let grpc = YellowstoneGrpc::new_with_config(
+        grpc_endpoint,
+        std::env::var("GRPC_AUTH_TOKEN").ok(),
+        config,
+    )?;
+
+    let protocols = vec![Protocol::PumpFun];
+    let transaction_filter = TransactionFilter::for_protocols(&protocols);
+    let account_filter = AccountFilter::for_protocols(&protocols);
+    let event_filter = EventTypeFilter::include_only(vec![
+        EventType::PumpFunCreate,
+        EventType::PumpFunBuy,
+        EventType::PumpFunBuyExactSolIn,
+    ]);
+
+    let queue = grpc
+        .subscribe_dex_events(vec![transaction_filter], vec![account_filter], Some(event_filter))
+        .await?;
+
+    println!("订阅已启动，等待创建者首次买入（is_created_buy）后执行狙击（仅一次）...\n");
+
+    loop {
+        if let Some(event) = queue.pop() {
+            let run = match &event {
+                DexEvent::PumpFunBuy(e) | DexEvent::PumpFunBuyExactSolIn(e) => {
+                    if e.is_created_buy && !ALREADY_EXECUTED.swap(true, Ordering::SeqCst) {
+                        Some(e.clone())
+                    } else {
+                        None
+                    }
+                }
+                _ => None,
+            };
+            if let Some(e) = run {
+                tokio::spawn(async move {
+                    if let Err(err) = pumpfun_sniper_trade(e).await {
+                        eprintln!("狙击执行错误: {:?}", err);
+                        std::process::exit(1);
+                    }
+                    std::process::exit(0);
+                });
+                break;
+            }
+        } else {
+            tokio::time::sleep(tokio::time::Duration::from_millis(5)).await;
+        }
+    }
+
     tokio::signal::ctrl_c().await?;
     Ok(())
 }
 
-/// Create an event callback function that handles different types of events
-fn create_event_callback() -> impl Fn(Box<dyn UnifiedEvent>) {
-    |event: Box<dyn UnifiedEvent>| {
-        match_event!(event, {
-            PumpFunTradeEvent => |e: PumpFunTradeEvent| {
-                // Only process developer token creation events
-                if !e.is_dev_create_token_trade {
-                    return;
-                }
-                // Ensure we only execute the trade once using atomic compare-and-swap
-                if !ALREADY_EXECUTED.swap(true, Ordering::SeqCst) {
-                    let event_clone = e.clone();
-                    // Spawn a new task to handle the trading operation
-                    tokio::spawn(async move {
-                        if let Err(err) = pumpfun_sniper_trade_with_shreds(event_clone).await {
-                            eprintln!("Error in copy trade: {:?}", err);
-                            std::process::exit(0);
-                        }
-                    });
-                }
-            },
-        });
-    }
-}
-
-/// Create SolanaTrade client
-/// Initializes a new SolanaTrade client with configuration
 async fn create_solana_trade_client() -> AnyResult<SolanaTrade> {
-    println!("🚀 Initializing SolanaTrade client...");
     let payer = Keypair::from_base58_string("use_your_payer_keypair_here");
-    let rpc_url = "https://api.mainnet-beta.solana.com".to_string();
+    let rpc_url = std::env::var("RPC_URL").unwrap_or_else(|_| "https://api.mainnet-beta.solana.com".to_string());
     let commitment = CommitmentConfig::confirmed();
     let swqos_configs: Vec<SwqosConfig> = vec![SwqosConfig::Default(rpc_url.clone())];
     let trade_config = TradeConfig::new(rpc_url, swqos_configs, commitment);
-    let solana_trade = SolanaTrade::new(Arc::new(payer), trade_config).await;
+    Ok(SolanaTrade::new(Arc::new(payer), trade_config).await)
-    println!("✅ SolanaTrade client initialized successfully!");
-    Ok(solana_trade)
 }
 
-/// Execute PumpFun sniper trading strategy based on received token creation event
+async fn pumpfun_sniper_trade(
-/// This function buys tokens immediately after creation and then sells all tokens
+    e: sol_parser_sdk::core::events::PumpFunTradeEvent,
-async fn pumpfun_sniper_trade_with_shreds(trade_info: PumpFunTradeEvent) -> AnyResult<()> {
+) -> AnyResult<()> {
-    println!("Testing PumpFun trading...");
-
     let client = create_solana_trade_client().await?;
-    let mint_pubkey = trade_info.mint;
+    let mint_pubkey = e.mint;
-    let slippage_basis_points = Some(300);
+    let slippage_basis_points = Some(300u64);
     let recent_blockhash = client.infrastructure.rpc.get_latest_blockhash().await?;
 
     let gas_fee_strategy = sol_trade_sdk::common::GasFeeStrategy::new();
     gas_fee_strategy.set_global_fee_strategy(150000, 150000, 500000, 500000, 0.001, 0.001);
 
-    // Buy tokens
+    // 创建者首次买入：用 from_dev_trade，max_sol_cost 用事件中的 sol_amount（可酌情加滑点）
-    println!("Buying tokens from PumpFun...");
+    let buy_sol_amount = 100_000u64;
-    let buy_sol_amount = 100_000;
+    let max_sol_cost = e.sol_amount.saturating_add(e.sol_amount / 10); // 约 +10% 作为上限
+
     let buy_params = sol_trade_sdk::TradeBuyParams {
         dex_type: DexType::PumpFun,
         input_token_type: TradeTokenType::SOL,
         mint: mint_pubkey,
         input_token_amount: buy_sol_amount,
-        slippage_basis_points: slippage_basis_points,
+        slippage_basis_points,
         recent_blockhash: Some(recent_blockhash),
         extension_params: DexParamEnum::PumpFun(PumpFunParams::from_dev_trade(
-            trade_info.mint,
+            e.mint,
-            trade_info.token_amount,
+            e.token_amount,
-            trade_info.max_sol_cost,
+            max_sol_cost,
-            trade_info.creator,
+            e.creator,
-            trade_info.bonding_curve,
+            e.bonding_curve,
-            trade_info.associated_bonding_curve,
+            e.associated_bonding_curve,
-            trade_info.creator_vault,
+            e.creator_vault,
             None,
-            trade_info.fee_recipient,
+            e.fee_recipient,
-            trade_info.token_program,
+            e.token_program,
+            e.is_cashback_coin,
         )),
         address_lookup_table_account: None,
         wait_transaction_confirmed: true,
@@ -126,26 +150,35 @@ async fn pumpfun_sniper_trade_with_shreds(trade_info: PumpFunTradeEvent) -> AnyR
     };
     client.buy(buy_params).await?;
 
-    // Sell tokens
-    println!("Selling tokens from PumpFun...");
-
     let rpc = client.infrastructure.rpc.clone();
     let payer = client.payer.pubkey();
     let account = get_associated_token_address(&payer, &mint_pubkey);
     let balance = rpc.get_token_account_balance(&account).await?;
-    println!("Balance: {:?}", balance);
     let amount_token = balance.amount.parse::<u64>().unwrap();
 
-    println!("Selling {} tokens", amount_token);
     let sell_params = sol_trade_sdk::TradeSellParams {
         dex_type: DexType::PumpFun,
         output_token_type: TradeTokenType::SOL,
         mint: mint_pubkey,
         input_token_amount: amount_token,
-        slippage_basis_points: slippage_basis_points,
+        slippage_basis_points,
         recent_blockhash: Some(recent_blockhash),
         with_tip: false,
-        extension_params: DexParamEnum::PumpFun(PumpFunParams::immediate_sell(trade_info.creator_vault, trade_info.token_program, true)),
+        extension_params: DexParamEnum::PumpFun(PumpFunParams::from_trade(
+            e.bonding_curve,
+            e.associated_bonding_curve,
+            e.mint,
+            e.creator,
+            e.creator_vault,
+            e.virtual_token_reserves,
+            e.virtual_sol_reserves,
+            e.real_token_reserves,
+            e.real_sol_reserves,
+            Some(true),
+            e.fee_recipient,
+            e.token_program,
+            e.is_cashback_coin,
+        )),
         address_lookup_table_account: None,
         wait_transaction_confirmed: true,
         create_output_token_ata: true,
@@ -153,14 +186,11 @@ async fn pumpfun_sniper_trade_with_shreds(trade_info: PumpFunTradeEvent) -> AnyR
         close_mint_token_ata: false,
         durable_nonce: None,
         fixed_output_token_amount: None,
-        gas_fee_strategy: gas_fee_strategy,
+        gas_fee_strategy,
         simulate: false,
     };
     client.sell(sell_params).await?;
 
-    // PumpFunParams can also be set as PumpFunParams::immediate_sell(creator_vault, close_token_account_when_sell)
+    println!("狙击一次买+卖完成");
-    // creator_vault can be obtained from the trade event
+    Ok(())
-
-    // Exit program after completing the trade
-    std::process::exit(0);
 }

release_notes_v3.4.1.md

@@ -0,0 +1,40 @@
+# sol-trade-sdk v3.4.1
+
+Rust SDK for Solana DEX trading (Pump.fun, PumpSwap, Raydium, Bonk, Meteora, etc.).
+
+## What's Changed
+
+### New Features
+
+- **PumpFun & PumpSwap Cashback** (#77): Support for cashback in PumpFun and PumpSwap trading flows. See [Cashback documentation](docs/PUMP_CASHBACK_README.md).
+- **Events**: `is_cashback_coin` is now passed from events; PumpFun examples use `sol-parser-sdk` only for event parsing.
+
+### Performance
+
+- **SWQoS**: Reduced submit latency; fixed high latency after ~5 minutes idle.
+
+### Bug Fixes
+
+- **WSOL ATA**: WSOL Associated Token Account creation now runs in background with retry and timeout for more reliable setup.
+- Silenced unused and deprecated compiler warnings.
+
+### Documentation
+
+- README (EN/中文): Added Cashback section, outline, examples and tables.
+- Updated crates.io / docs references in README.
+
+---
+
+## Cargo
+
+**From Git (this release):**
+```toml
+sol-trade-sdk = { git = "https://github.com/0xfnzero/sol-trade-sdk", tag = "v3.4.1" }
+```
+
+**From crates.io** (when published):
+```toml
+sol-trade-sdk = "3.4.1"
+```
+
+**Full Changelog**: https://github.com/0xfnzero/sol-trade-sdk/compare/v3.4.0...v3.4.1

release_notes_v3.5.0.md

@@ -0,0 +1,37 @@
+# sol-trade-sdk v3.5.0
+
+Rust SDK for Solana DEX trading (Pump.fun, PumpSwap, Raydium, Bonk, Meteora, etc.).
+
+## What's Changed
+
+### Performance
+
+- **Executor hot path**: Sample `Instant::now()` only when `log_enabled` or `simulate` (total, build, submit, confirm) to reduce cold-path syscalls.
+- **SWQOS**: `execute_parallel` now takes `&[Arc<SwqosClient>]` to avoid cloning the client list on each swap.
+- **Constants**: Named constants for instruction/account sizes and HTTP client timeouts; no magic numbers in hot paths.
+
+### Code Quality
+
+- **Protocol params**: Single `validate_protocol_params()` used for both buy and sell; removed duplicate match blocks in `lib.rs`.
+- **Comments**: Bilingual (English + 中文) doc and inline comments across execution, executor, perf (hardware_optimizations, syscall_bypass), and swqos/common.
+- **Prefetch/safety**: Clearer docs for cache prefetch and `unsafe` usage (valid read-only ref, no concurrent write).
+
+### Documentation
+
+- README (EN/CN): Version references updated to 3.5.0 for path and crates.io usage.
+
+---
+
+## Cargo
+
+**From Git (this release):**
+```toml
+sol-trade-sdk = { git = "https://github.com/0xfnzero/sol-trade-sdk", tag = "v3.5.0" }
+```
+
+**From crates.io:**
+```toml
+sol-trade-sdk = "3.5.0"
+```
+
+**Full Changelog**: https://github.com/0xfnzero/sol-trade-sdk/compare/v3.4.1...v3.5.0

src/common/bonding_curve.rs

@@ -60,9 +60,13 @@ pub struct BondingCurveAccount {
     pub creator: Pubkey,
     /// Whether this is a mayhem mode token (Token2022)
     pub is_mayhem_mode: bool,
+    /// Whether this coin has cashback enabled (creator fee redirected to users)
+    pub is_cashback_coin: bool,
 }
 
 impl BondingCurveAccount {
+    /// When building from event/parser data (e.g. sol-parser-sdk), pass the token's cashback flag
+    /// so that sell instructions include the correct remaining accounts. From RPC use `from_mint_by_rpc` instead.
     pub fn from_dev_trade(
         bonding_curve: Pubkey,
         mint: &Pubkey,
@@ -70,6 +74,7 @@ impl BondingCurveAccount {
         dev_sol_amount: u64,
         creator: Pubkey,
         is_mayhem_mode: bool,
+        is_cashback_coin: bool,
     ) -> Self {
         let account = if bonding_curve != Pubkey::default() {
             bonding_curve
@@ -87,9 +92,12 @@ impl BondingCurveAccount {
             complete: false,
             creator: creator,
             is_mayhem_mode: is_mayhem_mode,
+            is_cashback_coin,
         }
     }
 
+    /// When building from event/parser data (e.g. sol-parser-sdk), pass the token's cashback flag
+    /// so that sell instructions include the correct remaining accounts. From RPC use `from_mint_by_rpc` instead.
     pub fn from_trade(
         bonding_curve: Pubkey,
         mint: Pubkey,
@@ -99,6 +107,7 @@ impl BondingCurveAccount {
         real_token_reserves: u64,
         real_sol_reserves: u64,
         is_mayhem_mode: bool,
+        is_cashback_coin: bool,
     ) -> Self {
         let account = if bonding_curve != Pubkey::default() {
             bonding_curve
@@ -116,6 +125,7 @@ impl BondingCurveAccount {
             complete: false,
             creator: creator,
             is_mayhem_mode: is_mayhem_mode,
+            is_cashback_coin,
         }
     }
 

src/common/clock.rs

@@ -0,0 +1,97 @@
+//! High-performance clock (same design as sol-parser-sdk for consistent grpc_recv_us vs "now").
+//!
+//! Uses monotonic clock + base UTC timestamp to avoid frequent syscalls; aligned with sol-parser-sdk
+//! so event-side grpc_recv_us and SDK-side now_micros() share the same time scale.
+
+use std::time::Instant;
+
+/// High-performance clock: monotonic + base UTC microsecond timestamp.
+#[derive(Debug)]
+pub struct HighPerformanceClock {
+    base_instant: Instant,
+    base_timestamp_us: i64,
+    last_calibration: Instant,
+    calibration_interval_secs: u64,
+}
+
+impl HighPerformanceClock {
+    /// Calibrate every 5 minutes by default.
+    pub fn new() -> Self {
+        Self::new_with_calibration_interval(300)
+    }
+
+    /// Sample multiple times and use the lowest-latency baseline to reduce init error.
+    pub fn new_with_calibration_interval(calibration_interval_secs: u64) -> Self {
+        let mut best_offset = i64::MAX;
+        let mut best_instant = Instant::now();
+        let mut best_timestamp = chrono::Utc::now().timestamp_micros();
+
+        for _ in 0..3 {
+            let instant_before = Instant::now();
+            let timestamp = chrono::Utc::now().timestamp_micros();
+            let instant_after = Instant::now();
+            let sample_latency = instant_after.duration_since(instant_before).as_nanos() as i64;
+            if sample_latency < best_offset {
+                best_offset = sample_latency;
+                best_instant = instant_before;
+                best_timestamp = timestamp;
+            }
+        }
+
+        Self {
+            base_instant: best_instant,
+            base_timestamp_us: best_timestamp,
+            last_calibration: best_instant,
+            calibration_interval_secs,
+        }
+    }
+
+    #[inline(always)]
+    pub fn now_micros(&self) -> i64 {
+        let elapsed = self.base_instant.elapsed();
+        self.base_timestamp_us + elapsed.as_micros() as i64
+    }
+
+    /// Recalibrate when needed to prevent drift.
+    pub fn now_micros_with_calibration(&mut self) -> i64 {
+        if self.last_calibration.elapsed().as_secs() >= self.calibration_interval_secs {
+            self.recalibrate();
+        }
+        self.now_micros()
+    }
+
+    fn recalibrate(&mut self) {
+        let current_monotonic = Instant::now();
+        let current_utc = chrono::Utc::now().timestamp_micros();
+        let expected_utc = self.base_timestamp_us
+            + current_monotonic.duration_since(self.base_instant).as_micros() as i64;
+        let drift_us = current_utc - expected_utc;
+        if drift_us.abs() > 1000 {
+            self.base_instant = current_monotonic;
+            self.base_timestamp_us = current_utc;
+        }
+        self.last_calibration = current_monotonic;
+    }
+}
+
+impl Default for HighPerformanceClock {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
+static HIGH_PERF_CLOCK: once_cell::sync::OnceCell<HighPerformanceClock> =
+    once_cell::sync::OnceCell::new();
+
+/// Current time in microseconds (UTC scale); same as sol-parser-sdk clock::now_micros for comparable grpc_recv_us.
+#[inline(always)]
+pub fn now_micros() -> i64 {
+    let clock = HIGH_PERF_CLOCK.get_or_init(HighPerformanceClock::new);
+    clock.now_micros()
+}
+
+/// Elapsed microseconds from start_timestamp_us to now.
+#[inline(always)]
+pub fn elapsed_micros_since(start_timestamp_us: i64) -> i64 {
+    now_micros() - start_timestamp_us
+}

src/common/fast_fn.rs

@@ -153,10 +153,12 @@ pub fn _create_associated_token_account_idempotent_fast(
 pub enum PdaCacheKey {
     PumpFunUserVolume(Pubkey),
     PumpFunBondingCurve(Pubkey),
+    PumpFunBondingCurveV2(Pubkey),
     PumpFunCreatorVault(Pubkey),
     BonkPool(Pubkey, Pubkey),
     BonkVault(Pubkey, Pubkey),
     PumpSwapUserVolume(Pubkey),
+    PumpSwapPoolV2(Pubkey),
 }
 
 /// Global lock-free PDA cache for storing computation results

src/common/fast_timing.rs

@@ -174,7 +174,9 @@ mod tests {
         let total_elapsed = start.elapsed();
         let avg_per_call = total_elapsed.as_nanos() / iterations;
 
-        println!("Average fast_now_nanos() call: {}ns", avg_per_call);
+        if crate::common::sdk_log::sdk_log_enabled() {
+            println!("Average fast_now_nanos() call: {}ns", avg_per_call);
+        }
 
         // 快速时间戳应该非常快（< 100ns per call）
         assert!(avg_per_call < 100);
@@ -193,6 +195,8 @@ mod tests {
         let total_elapsed = start.elapsed();
         let avg_per_call = total_elapsed.as_nanos() / iterations;
 
-        println!("Average Instant::now() call: {}ns", avg_per_call);
+        if crate::common::sdk_log::sdk_log_enabled() {
+            println!("Average Instant::now() call: {}ns", avg_per_call);
+        }
     }
 }

src/common/gas_fee_strategy.rs

@@ -300,7 +300,7 @@ impl GasFeeStrategy {
     pub fn update_buy_tip(&self, buy_tip: f64) {
         self.strategies.rcu(|current_map| {
             let mut new_map = (**current_map).clone();
-            for ((swqos_type, trade_type, strategy_type), value) in new_map.iter_mut() {
+            for ((_swqos_type, trade_type, _strategy_type), value) in new_map.iter_mut() {
                 if *trade_type == TradeType::Buy {
                     value.tip = buy_tip;
                 }
@@ -314,7 +314,7 @@ impl GasFeeStrategy {
     pub fn update_sell_tip(&self, sell_tip: f64) {
         self.strategies.rcu(|current_map| {
             let mut new_map = (**current_map).clone();
-            for ((swqos_type, trade_type, strategy_type), value) in new_map.iter_mut() {
+            for ((_swqos_type, trade_type, _strategy_type), value) in new_map.iter_mut() {
                 if *trade_type == TradeType::Sell {
                     value.tip = sell_tip;
                 }
@@ -328,7 +328,7 @@ impl GasFeeStrategy {
     pub fn update_buy_cu_price(&self, buy_cu_price: u64) {
         self.strategies.rcu(|current_map| {
             let mut new_map = (**current_map).clone();
-            for ((swqos_type, trade_type, strategy_type), value) in new_map.iter_mut() {
+            for ((_swqos_type, trade_type, _strategy_type), value) in new_map.iter_mut() {
                 if *trade_type == TradeType::Buy {
                     value.cu_price = buy_cu_price;
                 }
@@ -342,7 +342,7 @@ impl GasFeeStrategy {
     pub fn update_sell_cu_price(&self, sell_cu_price: u64) {
         self.strategies.rcu(|current_map| {
             let mut new_map = (**current_map).clone();
-            for ((swqos_type, trade_type, strategy_type), value) in new_map.iter_mut() {
+            for ((_swqos_type, trade_type, _strategy_type), value) in new_map.iter_mut() {
                 if *trade_type == TradeType::Sell {
                     value.cu_price = sell_cu_price;
                 }
@@ -354,6 +354,9 @@ impl GasFeeStrategy {
     /// 打印所有策略。
     /// Print all strategies
     pub fn print_all_strategies(&self) {
+        if !crate::common::sdk_log::sdk_log_enabled() {
+            return;
+        }
         for strategy in self.get_strategies(TradeType::Buy) {
             println!("[buy] - {:?}", strategy);
         }

src/common/mod.rs

@@ -1,5 +1,8 @@
+pub mod address_lookup;
 pub mod bonding_curve;
+pub mod clock;
 pub mod fast_fn;
+pub mod sdk_log;
 pub mod fast_timing;
 pub mod gas_fee_strategy;
 pub mod global;
@@ -10,7 +13,6 @@ pub mod spl_token;
 pub mod spl_token_2022;
 pub mod subscription_handle;
 pub mod types;
-pub mod address_lookup;
 
 pub use gas_fee_strategy::*;
 pub use types::*;

src/common/sdk_log.rs

@@ -0,0 +1,19 @@
+//! sol-trade-sdk global log switch
+//!
+//! Controlled by `TradeConfig::log_enabled`, set in `TradingClient::new`.
+//! All SDK logs (timing, SWQOS submit/confirm, WSOL, blacklist, etc.) should check this before output.
+
+use std::sync::atomic::{AtomicBool, Ordering};
+
+static SDK_LOG_ENABLED: AtomicBool = AtomicBool::new(true);
+
+/// Whether SDK logging is enabled (set from TradeConfig.log_enabled in TradingClient::new).
+#[inline(always)]
+pub fn sdk_log_enabled() -> bool {
+    SDK_LOG_ENABLED.load(Ordering::Relaxed)
+}
+
+/// Set the SDK global log switch (only called from TradingClient::new).
+pub fn set_sdk_log_enabled(enabled: bool) {
+    SDK_LOG_ENABLED.store(enabled, Ordering::Relaxed);
+}

src/common/types.rs

@@ -72,6 +72,10 @@ pub struct TradeConfig {
     pub create_wsol_ata_on_startup: bool,
     /// Whether to use seed optimization for all ATA operations (default: true)
     pub use_seed_optimize: bool,
+    /// Whether to pin parallel submit tasks to CPU cores (can reduce latency; set false in containers). Default true.
+    pub use_core_affinity: bool,
+    /// Whether to output all SDK logs (timing, SWQOS submit/confirm, WSOL, blacklist, etc.). Default true.
+    pub log_enabled: bool,
 }
 
 impl TradeConfig {
@@ -80,14 +84,18 @@ impl TradeConfig {
         swqos_configs: Vec<SwqosConfig>,
         commitment: CommitmentConfig,
     ) -> Self {
-        println!("🔧 TradeConfig create_wsol_ata_on_startup default value: true");
+        if crate::common::sdk_log::sdk_log_enabled() {
-        println!("🔧 TradeConfig use_seed_optimize default value: true");
+            println!("🔧 TradeConfig create_wsol_ata_on_startup default: true");
+            println!("🔧 TradeConfig use_seed_optimize default: true");
+        }
         Self {
             rpc_url,
             swqos_configs,
             commitment,
-            create_wsol_ata_on_startup: true,  // 默认：启动时检查并创建
+            create_wsol_ata_on_startup: true,  // default: check and create on startup
-            use_seed_optimize: true,           // 默认：使用seed优化
+            use_seed_optimize: true,           // default: use seed optimization
+            use_core_affinity: true,           // default: pin parallel submit tasks to cores
+            log_enabled: true,                 // default: enable all SDK logs
         }
     }
 

src/constants/swqos.rs

@@ -227,26 +227,30 @@ pub const SWQOS_ENDPOINTS_FLASHBLOCK: [&str; 8] = [
     "http://ny.flashblock.trade",
 ];
 
+/// BlockRazor Send Transaction v2: plain-text Base64 body, auth in URI, Content-Type: text/plain. Keep-alive: POST /v2/health.
 pub const SWQOS_ENDPOINTS_BLOCKRAZOR: [&str; 8] = [
-    "http://newyork.solana.blockrazor.xyz:443/sendTransaction",
+    "http://newyork.solana.blockrazor.xyz:443/v2/sendTransaction",
-    "http://frankfurt.solana.blockrazor.xyz:443/sendTransaction",
+    "http://frankfurt.solana.blockrazor.xyz:443/v2/sendTransaction",
-    "http://amsterdam.solana.blockrazor.xyz:443/sendTransaction",
+    "http://amsterdam.solana.blockrazor.xyz:443/v2/sendTransaction",
-    "http://newyork.solana.blockrazor.xyz:443/sendTransaction",
+    "http://newyork.solana.blockrazor.xyz:443/v2/sendTransaction",
-    "http://tokyo.solana.blockrazor.xyz:443/sendTransaction",
+    "http://tokyo.solana.blockrazor.xyz:443/v2/sendTransaction",
-    "http://frankfurt.solana.blockrazor.xyz:443/sendTransaction",
+    "http://london.solana.blockrazor.xyz:443/v2/sendTransaction",
-    "http://newyork.solana.blockrazor.xyz:443/sendTransaction",
+    "http://newyork.solana.blockrazor.xyz:443/v2/sendTransaction",
-    "http://frankfurt.solana.blockrazor.xyz:443/sendTransaction",
+    "http://frankfurt.solana.blockrazor.xyz:443/v2/sendTransaction",
 ];
 
+/// Astralane binary API path (no Base64; use with ?api-key=...&method=sendTransaction|getHealth).
+pub const ASTRALANE_PATH_IRISB: &str = "irisb";
+
 pub const SWQOS_ENDPOINTS_ASTRALANE: [&str; 8] = [
-    "http://ny.gateway.astralane.io/iris",
+    "http://ny.gateway.astralane.io/irisb",
-    "http://fr.gateway.astralane.io/iris",
+    "http://fr.gateway.astralane.io/irisb",
-    "http://ams.gateway.astralane.io/iris",
+    "http://ams.gateway.astralane.io/irisb",
-    "http://ny.gateway.astralane.io/iris",
+    "http://ny.gateway.astralane.io/irisb",
-    "http://jp.gateway.astralane.io/iris",
+    "http://jp.gateway.astralane.io/irisb",
-    "http://ny.gateway.astralane.io/iris",
+    "http://ny.gateway.astralane.io/irisb",
-    "http://lax.gateway.astralane.io/iris",
+    "http://lax.gateway.astralane.io/irisb",
-    "http://lim.gateway.astralane.io/iris",
+    "http://lim.gateway.astralane.io/irisb",
 ];
 
 pub const SWQOS_ENDPOINTS_STELLIUM: [&str; 8] = [

src/instruction/pumpfun.rs

@@ -8,8 +8,9 @@ use crate::{
 };
 use crate::{
     instruction::utils::pumpfun::{
-        accounts, get_bonding_curve_pda, get_creator, get_user_volume_accumulator_pda,
+        accounts, get_bonding_curve_pda, get_bonding_curve_v2_pda, get_creator,
-        global_constants::{self}, BUY_DISCRIMINATOR, BUY_EXACT_SOL_IN_DISCRIMINATOR,
+        get_user_volume_accumulator_pda, global_constants::{self}, BUY_DISCRIMINATOR,
+        BUY_EXACT_SOL_IN_DISCRIMINATOR,
     },
     utils::calc::{
         common::{calculate_with_slippage_buy, calculate_with_slippage_sell},
@@ -143,7 +144,8 @@ impl InstructionBuilder for PumpFunInstructionBuilder {
             global_constants::FEE_RECIPIENT_META
         };
 
-        let accounts: [AccountMeta; 16] = [
+        let bonding_curve_v2 = get_bonding_curve_v2_pda(&params.output_mint).unwrap();
+        let mut accounts: Vec<AccountMeta> = vec![
             global_constants::GLOBAL_ACCOUNT_META,
             fee_recipient_meta,
             AccountMeta::new_readonly(params.output_mint, false),
@@ -161,11 +163,12 @@ impl InstructionBuilder for PumpFunInstructionBuilder {
             accounts::FEE_CONFIG_META,
             accounts::FEE_PROGRAM_META,
         ];
+        accounts.push(AccountMeta::new_readonly(bonding_curve_v2, false)); // bonding_curve_v2 (readonly) at end
 
         instructions.push(Instruction::new_with_bytes(
             accounts::PUMPFUN,
             &buy_data,
-            accounts.to_vec(),
+            accounts,
         ));
 
         Ok(instructions)
@@ -263,7 +266,7 @@ impl InstructionBuilder for PumpFunInstructionBuilder {
             global_constants::FEE_RECIPIENT_META
         };
 
-        let accounts: [AccountMeta; 14] = [
+        let mut accounts: Vec<AccountMeta> = vec![
             global_constants::GLOBAL_ACCOUNT_META,
             fee_recipient_meta,
             AccountMeta::new_readonly(params.input_mint, false),
@@ -280,10 +283,20 @@ impl InstructionBuilder for PumpFunInstructionBuilder {
             accounts::FEE_PROGRAM_META,
         ];
 
+        // Cashback: Bonding Curve Sell expects UserVolumeAccumulator PDA at 0th remaining account (writable)
+        if bonding_curve.is_cashback_coin {
+            let user_volume_accumulator =
+                get_user_volume_accumulator_pda(&params.payer.pubkey()).unwrap();
+            accounts.push(AccountMeta::new(user_volume_accumulator, false));
+        }
+        // Program upgrade: bonding_curve_v2 (readonly) at end of account list
+        let bonding_curve_v2 = get_bonding_curve_v2_pda(&params.input_mint).unwrap();
+        accounts.push(AccountMeta::new_readonly(bonding_curve_v2, false));
+
         instructions.push(Instruction::new_with_bytes(
             accounts::PUMPFUN,
             &sell_data,
-            accounts.to_vec(),
+            accounts,
         ));
 
         // Optional: Close token account
@@ -302,3 +315,21 @@ impl InstructionBuilder for PumpFunInstructionBuilder {
         Ok(instructions)
     }
 }
+
+/// Claim cashback for Bonding Curve (Pump program). Transfers native lamports from UserVolumeAccumulator to user.
+pub fn claim_cashback_pumpfun_instruction(payer: &Pubkey) -> Option<Instruction> {
+    const CLAIM_CASHBACK_DISCRIMINATOR: [u8; 8] = [37, 58, 35, 126, 190, 53, 228, 197];
+    let user_volume_accumulator = get_user_volume_accumulator_pda(payer)?;
+    let accounts = vec![
+        AccountMeta::new(*payer, true),           // user (signer, writable)
+        AccountMeta::new(user_volume_accumulator, false), // user_volume_accumulator (writable, not signer)
+        crate::constants::SYSTEM_PROGRAM_META,
+        accounts::EVENT_AUTHORITY_META,
+        accounts::PUMPFUN_META,
+    ];
+    Some(Instruction::new_with_bytes(
+        accounts::PUMPFUN,
+        &CLAIM_CASHBACK_DISCRIMINATOR,
+        accounts,
+    ))
+}

src/instruction/pumpswap.rs

@@ -1,7 +1,8 @@
 use crate::{
     constants::trade::trade::DEFAULT_SLIPPAGE,
     instruction::utils::pumpswap::{
-        accounts, fee_recipient_ata, get_user_volume_accumulator_pda, BUY_DISCRIMINATOR,
+        accounts, fee_recipient_ata, get_pool_v2_pda, get_user_volume_accumulator_pda,
+        get_user_volume_accumulator_wsol_ata, BUY_DISCRIMINATOR,
         BUY_EXACT_QUOTE_IN_DISCRIMINATOR, SELL_DISCRIMINATOR,
     },
     trading::{
@@ -183,6 +184,17 @@ impl InstructionBuilder for PumpSwapInstructionBuilder {
         }
         accounts.push(accounts::FEE_CONFIG_META);
         accounts.push(accounts::FEE_PROGRAM_META);
+        // Cashback: remaining_accounts[0] = WSOL ATA of UserVolumeAccumulator (after named accounts per IDL)
+        if protocol_params.is_cashback_coin {
+            if let Some(wsol_ata) = get_user_volume_accumulator_wsol_ata(&params.payer.pubkey()) {
+                accounts.push(AccountMeta::new(wsol_ata, false));
+            }
+        }
+        // Program upgrade: pool_v2 (readonly) at end of account list
+        accounts.push(AccountMeta::new_readonly(
+            get_pool_v2_pda(&base_mint).unwrap(),
+            false,
+        ));
 
         // Create instruction data
         let mut data = [0u8; 24];
@@ -373,9 +385,23 @@ impl InstructionBuilder for PumpSwapInstructionBuilder {
                 false,
             ));
         }
-
         accounts.push(accounts::FEE_CONFIG_META);
         accounts.push(accounts::FEE_PROGRAM_META);
+        // Cashback: remaining_accounts[0] = WSOL ATA of UserVolumeAccumulator, remaining_accounts[1] = UserVolumeAccumulator PDA
+        if protocol_params.is_cashback_coin {
+            if let (Some(wsol_ata), Some(accumulator)) = (
+                get_user_volume_accumulator_wsol_ata(&params.payer.pubkey()),
+                get_user_volume_accumulator_pda(&params.payer.pubkey()),
+            ) {
+                accounts.push(AccountMeta::new(wsol_ata, false));
+                accounts.push(AccountMeta::new(accumulator, false));
+            }
+        }
+        // Program upgrade: pool_v2 (readonly) at end of account list
+        accounts.push(AccountMeta::new_readonly(
+            get_pool_v2_pda(&base_mint).unwrap(),
+            false,
+        ));
 
         // Create instruction data
         let mut data = [0u8; 24];
@@ -420,3 +446,38 @@ impl InstructionBuilder for PumpSwapInstructionBuilder {
         Ok(instructions)
     }
 }
+
+/// Claim cashback for PumpSwap (AMM). Transfers WSOL from UserVolumeAccumulator's WSOL ATA to user's WSOL ATA.
+/// Caller should ensure user's WSOL ATA exists (e.g. create idempotent ATA instruction) before this instruction.
+pub fn claim_cashback_pumpswap_instruction(
+    payer: &Pubkey,
+    quote_mint: Pubkey,
+    quote_token_program: Pubkey,
+) -> Option<solana_sdk::instruction::Instruction> {
+    const CLAIM_CASHBACK_DISCRIMINATOR: [u8; 8] = [37, 58, 35, 126, 190, 53, 228, 197];
+    let user_volume_accumulator = get_user_volume_accumulator_pda(payer)?;
+    let user_volume_accumulator_wsol_ata = get_user_volume_accumulator_wsol_ata(payer)?;
+    let user_wsol_ata = crate::common::fast_fn::get_associated_token_address_with_program_id_fast(
+        payer,
+        &quote_mint,
+        &quote_token_program,
+    );
+    // IDL order: user, user_volume_accumulator, quote_mint, quote_token_program,
+    // user_volume_accumulator_wsol_token_account, user_wsol_token_account, system_program, event_authority, program
+    let accounts = vec![
+        AccountMeta::new(*payer, true),                              // user (signer, writable)
+        AccountMeta::new(user_volume_accumulator, false),            // user_volume_accumulator (writable)
+        AccountMeta::new_readonly(quote_mint, false),
+        AccountMeta::new_readonly(quote_token_program, false),
+        AccountMeta::new(user_volume_accumulator_wsol_ata, false),   // writable
+        AccountMeta::new(user_wsol_ata, false),                      // writable
+        crate::constants::SYSTEM_PROGRAM_META,
+        accounts::EVENT_AUTHORITY_META,
+        accounts::AMM_PROGRAM_META,
+    ];
+    Some(solana_sdk::instruction::Instruction::new_with_bytes(
+        accounts::AMM_PROGRAM,
+        &CLAIM_CASHBACK_DISCRIMINATOR,
+        accounts,
+    ))
+}

src/instruction/utils/pumpfun.rs

@@ -7,6 +7,8 @@ use std::sync::Arc;
 pub mod seeds {
     /// Seed for bonding curve PDAs
     pub const BONDING_CURVE_SEED: &[u8] = b"bonding-curve";
+    /// Seed for bonding curve v2 PDA (required by program upgrade, readonly at end of account list)
+    pub const BONDING_CURVE_V2_SEED: &[u8] = b"bonding-curve-v2";
 
     /// Seed for creator vault PDAs
     pub const CREATOR_VAULT_SEED: &[u8] = b"creator-vault";
@@ -178,6 +180,20 @@ pub fn get_bonding_curve_pda(mint: &Pubkey) -> Option<Pubkey> {
     )
 }
 
+/// Bonding curve v2 PDA (seeds: ["bonding-curve-v2", mint]). Required at end of buy/sell/buy_exact_sol_in accounts.
+#[inline]
+pub fn get_bonding_curve_v2_pda(mint: &Pubkey) -> Option<Pubkey> {
+    crate::common::fast_fn::get_cached_pda(
+        crate::common::fast_fn::PdaCacheKey::PumpFunBondingCurveV2(*mint),
+        || {
+            let seeds: &[&[u8]; 2] = &[seeds::BONDING_CURVE_V2_SEED, mint.as_ref()];
+            let program_id: &Pubkey = &accounts::PUMPFUN;
+            let pda: Option<(Pubkey, u8)> = Pubkey::try_find_program_address(seeds, program_id);
+            pda.map(|pubkey| pubkey.0)
+        },
+    )
+}
+
 #[inline]
 pub fn get_creator(creator_vault_pda: &Pubkey) -> Pubkey {
     if creator_vault_pda.eq(&Pubkey::default()) {

src/instruction/utils/pumpswap.rs

@@ -26,6 +26,9 @@ pub mod seeds {
     pub const USER_VOLUME_ACCUMULATOR_SEED: &[u8] = b"user_volume_accumulator";
     pub const GLOBAL_VOLUME_ACCUMULATOR_SEED: &[u8] = b"global_volume_accumulator";
     pub const FEE_CONFIG_SEED: &[u8] = b"fee_config";
+
+    /// Seed for pool v2 PDA (required by program upgrade, readonly at end of account list)
+    pub const POOL_V2_SEED: &[u8] = b"pool-v2";
 }
 
 /// Constants related to program accounts and authorities
@@ -139,6 +142,16 @@ pub const BUY_DISCRIMINATOR: [u8; 8] = [102, 6, 61, 18, 1, 218, 235, 234];
 pub const BUY_EXACT_QUOTE_IN_DISCRIMINATOR: [u8; 8] = [198, 46, 21, 82, 180, 217, 232, 112];
 pub const SELL_DISCRIMINATOR: [u8; 8] = [51, 230, 133, 164, 1, 127, 131, 173];
 
+/// Pool v2 PDA (seeds: ["pool-v2", base_mint]). Required at end of buy/sell/buy_exact_quote_in accounts.
+#[inline]
+pub fn get_pool_v2_pda(base_mint: &Pubkey) -> Option<Pubkey> {
+    let (pda, _) = Pubkey::find_program_address(
+        &[seeds::POOL_V2_SEED, base_mint.as_ref()],
+        &accounts::AMM_PROGRAM,
+    );
+    Some(pda)
+}
+
 // Find a pool for a specific mint
 pub async fn find_pool(rpc: &SolanaRpcClient, mint: &Pubkey) -> Result<Pubkey, anyhow::Error> {
     let (pool_address, _) = find_by_mint(rpc, mint).await?;
@@ -185,6 +198,16 @@ pub fn get_user_volume_accumulator_pda(user: &Pubkey) -> Option<Pubkey> {
     )
 }
 
+/// WSOL ATA of UserVolumeAccumulator for Pump AMM (used for cashback remaining accounts).
+pub fn get_user_volume_accumulator_wsol_ata(user: &Pubkey) -> Option<Pubkey> {
+    let accumulator = get_user_volume_accumulator_pda(user)?;
+    Some(crate::common::fast_fn::get_associated_token_address_with_program_id_fast(
+        &accumulator,
+        &crate::constants::WSOL_TOKEN_ACCOUNT,
+        &crate::constants::TOKEN_PROGRAM,
+    ))
+}
+
 pub fn get_global_volume_accumulator_pda() -> Option<Pubkey> {
     let seeds: &[&[u8]; 1] = &[&seeds::GLOBAL_VOLUME_ACCUMULATOR_SEED];
     let program_id: &Pubkey = &&accounts::AMM_PROGRAM;
@@ -227,6 +250,7 @@ pub async fn find_by_base_mint(
         sort_results: None,
     };
     let program_id = accounts::AMM_PROGRAM;
+    #[allow(deprecated)]
     let accounts = rpc.get_program_accounts_with_config(&program_id, config).await?;
     if accounts.is_empty() {
         return Err(anyhow!("No pool found for mint {}", base_mint));
@@ -277,6 +301,7 @@ pub async fn find_by_quote_mint(
         sort_results: None,
     };
     let program_id = accounts::AMM_PROGRAM;
+    #[allow(deprecated)]
     let accounts = rpc.get_program_accounts_with_config(&program_id, config).await?;
     if accounts.is_empty() {
         return Err(anyhow!("No pool found for mint {}", quote_mint));

src/instruction/utils/pumpswap_types.rs

@@ -15,9 +15,11 @@ pub struct Pool {
     pub lp_supply: u64,
     pub coin_creator: Pubkey,
     pub is_mayhem_mode: bool,
+    /// Whether this pool's coin has cashback enabled
+    pub is_cashback_coin: bool,
 }
 
-pub const POOL_SIZE: usize = 1 + 2 + 32 * 6 + 8 + 32 + 1;
+pub const POOL_SIZE: usize = 1 + 2 + 32 * 6 + 8 + 32 + 1 + 1;
 
 pub fn pool_decode(data: &[u8]) -> Option<Pool> {
     if data.len() < POOL_SIZE {

src/lib.rs

@@ -6,8 +6,10 @@ pub mod swqos;
 pub mod trading;
 pub mod utils;
 use crate::common::nonce_cache::DurableNonceInfo;
+use crate::common::sdk_log;
 use crate::common::GasFeeStrategy;
 use crate::common::{TradeConfig, InfrastructureConfig};
+#[cfg(feature = "perf-trace")]
 use crate::constants::trade::trade::DEFAULT_SLIPPAGE;
 use crate::constants::SOL_TOKEN_ACCOUNT;
 use crate::constants::USD1_TOKEN_ACCOUNT;
@@ -36,6 +38,21 @@ use solana_sdk::message::AddressLookupTableAccount;
 use solana_sdk::signer::Signer;
 use solana_sdk::{pubkey::Pubkey, signature::Keypair, signature::Signature};
 use std::sync::Arc;
+#[allow(unused_imports)]
+use tracing::{debug, error, info, warn};
+
+/// Single place to validate that protocol params match the given DEX type (avoids duplicate match in buy/sell).
+#[inline(always)]
+fn validate_protocol_params(dex_type: DexType, params: &DexParamEnum) -> bool {
+    match dex_type {
+        DexType::PumpFun => params.as_any().downcast_ref::<PumpFunParams>().is_some(),
+        DexType::PumpSwap => params.as_any().downcast_ref::<PumpSwapParams>().is_some(),
+        DexType::Bonk => params.as_any().downcast_ref::<BonkParams>().is_some(),
+        DexType::RaydiumCpmm => params.as_any().downcast_ref::<RaydiumCpmmParams>().is_some(),
+        DexType::RaydiumAmmV4 => params.as_any().downcast_ref::<RaydiumAmmV4Params>().is_some(),
+        DexType::MeteoraDammV2 => params.as_any().downcast_ref::<MeteoraDammV2Params>().is_some(),
+    }
+}
 
 /// Type of the token to buy
 #[derive(Clone, PartialEq)]
@@ -89,7 +106,9 @@ impl TradingInfrastructure {
         for swqos in &config.swqos_configs {
             // Check blacklist, skip disabled providers
             if swqos.is_blacklisted() {
-                eprintln!("\u{26a0}\u{fe0f} SWQOS {:?} is blacklisted, skipping", swqos.swqos_type());
+                if sdk_log::sdk_log_enabled() {
+                    warn!(target: "sol_trade_sdk", "⚠️ SWQOS {:?} is blacklisted, skipping", swqos.swqos_type());
+                }
                 continue;
             }
             match SwqosConfig::get_swqos_client(
@@ -98,10 +117,15 @@ impl TradingInfrastructure {
                 swqos.clone(),
             ).await {
                 Ok(swqos_client) => swqos_clients.push(swqos_client),
-                Err(err) => eprintln!(
+                Err(err) => {
-                    "failed to create {:?} swqos client: {err}. Excluding from swqos list",
+                    if sdk_log::sdk_log_enabled() {
-                    swqos.swqos_type()
+                        warn!(
-                ),
+                            target: "sol_trade_sdk",
+                            "failed to create {:?} swqos client: {err}. Excluding from swqos list",
+                            swqos.swqos_type()
+                        );
+                    }
+                }
             }
         }
 
@@ -129,6 +153,10 @@ pub struct TradingClient {
     /// Whether to use seed optimization for all ATA operations (default: true)
     /// Applies to all token account creations across buy and sell operations
     pub use_seed_optimize: bool,
+    /// Whether to pin parallel submit tasks to CPU cores (from TradeConfig.use_core_affinity). Default true.
+    pub use_core_affinity: bool,
+    /// Whether to output all SDK logs (from TradeConfig.log_enabled).
+    pub log_enabled: bool,
 }
 
 static INSTANCE: Mutex<Option<Arc<TradingClient>>> = Mutex::new(None);
@@ -143,6 +171,8 @@ impl Clone for TradingClient {
             infrastructure: self.infrastructure.clone(),
             middleware_manager: self.middleware_manager.clone(),
             use_seed_optimize: self.use_seed_optimize,
+            use_core_affinity: self.use_core_affinity,
+            log_enabled: self.log_enabled,
         }
     }
 }
@@ -192,6 +222,8 @@ pub struct TradeBuyParams {
     /// When Some(false), uses regular buy instruction where slippage is applied to SOL/quote input.
     /// This option only applies to PumpFun and PumpSwap DEXes; it is ignored for other DEXes.
     pub use_exact_sol_amount: Option<bool>,
+    /// 可选：事件收到时间（微秒，与 sol-parser-sdk 的 metadata.grpc_recv_us / clock::now_micros 同源）。不传且开启 log_enabled 时 SDK 用 now_micros() 作为起点，打印起点→提交耗时。
+    pub grpc_recv_us: Option<i64>,
 }
 
 /// Parameters for executing sell orders across different DEX protocols
@@ -236,6 +268,8 @@ pub struct TradeSellParams {
     pub gas_fee_strategy: GasFeeStrategy,
     /// Whether to simulate the transaction instead of executing it
     pub simulate: bool,
+    /// 可选：事件收到时间（微秒，与 sol-parser-sdk clock 同源）。不传且开启 log_enabled 时 SDK 用 now_micros() 作为起点。
+    pub grpc_recv_us: Option<i64>,
 }
 
 impl TradingClient {
@@ -265,6 +299,8 @@ impl TradingClient {
             infrastructure,
             middleware_manager: None,
             use_seed_optimize,
+            use_core_affinity: true,
+            log_enabled: true,
         }
     }
 
@@ -286,7 +322,15 @@ impl TradingClient {
         crate::common::fast_fn::fast_init(&payer.pubkey());
 
         if create_wsol_ata {
-            Self::ensure_wsol_ata(&payer, &infrastructure.rpc).await;
+            // 在后台异步创建 WSOL ATA，不阻塞启动
+            let payer_clone = payer.clone();
+            let rpc_clone = infrastructure.rpc.clone();
+            tokio::spawn(async move {
+                Self::ensure_wsol_ata(&payer_clone, &rpc_clone).await;
+            });
+            if sdk_log::sdk_log_enabled() {
+                info!(target: "sol_trade_sdk", "ℹ️ WSOL ATA creation started in background, does not block bot startup");
+            }
         }
 
         Self {
@@ -294,6 +338,8 @@ impl TradingClient {
             infrastructure,
             middleware_manager: None,
             use_seed_optimize,
+            use_core_affinity: true,
+            log_enabled: true,
         }
     }
 
@@ -308,46 +354,114 @@ impl TradingClient {
 
         match rpc.get_account(&wsol_ata).await {
             Ok(_) => {
-                println!("✅ WSOL ATA已存在: {}", wsol_ata);
+                if sdk_log::sdk_log_enabled() {
+                    info!(target: "sol_trade_sdk", "✅ WSOL ATA already exists: {}", wsol_ata);
+                }
+                return;
             }
             Err(_) => {
-                println!("🔨 创建WSOL ATA: {}", wsol_ata);
+                if sdk_log::sdk_log_enabled() {
+                    info!(target: "sol_trade_sdk", "🔨 Creating WSOL ATA: {}", wsol_ata);
+                }
                 let create_ata_ixs =
                     crate::trading::common::wsol_manager::create_wsol_ata(&payer.pubkey());
 
                 if !create_ata_ixs.is_empty() {
                     use solana_sdk::transaction::Transaction;
-                    let recent_blockhash = rpc.get_latest_blockhash().await.unwrap();
-                    let tx = Transaction::new_signed_with_payer(
-                        &create_ata_ixs,
-                        Some(&payer.pubkey()),
-                        &[payer.as_ref()],
-                        recent_blockhash,
-                    );
 
-                    match rpc.send_and_confirm_transaction(&tx).await {
+                    // 重试逻辑：最多尝试3次，每次超时10秒
-                        Ok(signature) => {
+                    const MAX_RETRIES: usize = 3;
-                            println!("✅ WSOL ATA创建成功: {}", signature);
+                    const TIMEOUT_SECS: u64 = 10;
+                    let mut last_error = None;
+
+                    for attempt in 1..=MAX_RETRIES {
+                        if attempt > 1 {
+                            if sdk_log::sdk_log_enabled() {
+                                info!(target: "sol_trade_sdk", "🔄 Retrying WSOL ATA creation (attempt {}/{})...", attempt, MAX_RETRIES);
+                            }
+                            tokio::time::sleep(tokio::time::Duration::from_secs(2)).await;
                         }
-                        Err(e) => {
+
-                            match rpc.get_account(&wsol_ata).await {
+                        let recent_blockhash = match rpc.get_latest_blockhash().await {
-                                Ok(_) => {
+                            Ok(hash) => hash,
-                                    println!(
+                            Err(e) => {
-                                        "✅ WSOL ATA已存在（交易失败但账户存在）: {}",
+                                if sdk_log::sdk_log_enabled() {
-                                        wsol_ata
+                                    warn!(target: "sol_trade_sdk", "⚠️ Failed to get latest blockhash: {}", e);
-                                    );
                                 }
-                                Err(_) => {
+                                last_error = Some(format!("Failed to get blockhash: {}", e));
-                                    panic!(
+                                continue;
-                                        "❌ WSOL ATA创建失败且账户不存在: {}. 错误: {}",
+                            }
-                                        wsol_ata, e
+                        };
-                                    );
+
+                        let tx = Transaction::new_signed_with_payer(
+                            &create_ata_ixs,
+                            Some(&payer.pubkey()),
+                            &[payer.as_ref()],
+                            recent_blockhash,
+                        );
+
+                        // 使用超时包装 send_and_confirm_transaction
+                        let send_result = tokio::time::timeout(
+                            tokio::time::Duration::from_secs(TIMEOUT_SECS),
+                            rpc.send_and_confirm_transaction(&tx)
+                        ).await;
+
+                        match send_result {
+                            Ok(Ok(signature)) => {
+                                if sdk_log::sdk_log_enabled() {
+                                    info!(target: "sol_trade_sdk", "✅ WSOL ATA created successfully: {}", signature);
+                                }
+                                return;
+                            }
+                            Ok(Err(e)) => {
+                                last_error = Some(format!("{}", e));
+
+                                // 检查账户是否实际已存在
+                                if let Ok(_) = rpc.get_account(&wsol_ata).await {
+                                    if sdk_log::sdk_log_enabled() {
+                                        info!(target: "sol_trade_sdk", "✅ WSOL ATA already exists (tx failed but account exists): {}", wsol_ata);
+                                    }
+                                    return;
+                                }
+
+                                if attempt < MAX_RETRIES && sdk_log::sdk_log_enabled() {
+                                    warn!(target: "sol_trade_sdk", "⚠️ Attempt {} failed: {}", attempt, e);
+                                }
+                            }
+                            Err(_) => {
+                                last_error = Some(format!("Transaction confirmation timeout ({}s)", TIMEOUT_SECS));
+                                if sdk_log::sdk_log_enabled() {
+                                    warn!(target: "sol_trade_sdk", "⚠️ Attempt {} timed out", attempt);
                                 }
                             }
                         }
                     }
+
+                    // 所有重试都失败了
+                    if let Some(err) = last_error {
+                        if sdk_log::sdk_log_enabled() {
+                            error!(target: "sol_trade_sdk", "❌ WSOL ATA creation failed after {} retries: {}", MAX_RETRIES, wsol_ata);
+                            error!(target: "sol_trade_sdk", "   Error: {}", err);
+                            error!(target: "sol_trade_sdk", "   💡 Possible causes:");
+                            error!(target: "sol_trade_sdk", "      1. Insufficient SOL balance (need ~0.002 SOL for rent exemption)");
+                            error!(target: "sol_trade_sdk", "      2. RPC timeout or network congestion");
+                            error!(target: "sol_trade_sdk", "      3. Insufficient transaction fee");
+                            error!(target: "sol_trade_sdk", "   🔧 Solutions:");
+                            error!(target: "sol_trade_sdk", "      1. Fund wallet with at least 0.1 SOL");
+                            error!(target: "sol_trade_sdk", "      2. Retry after a few seconds");
+                            error!(target: "sol_trade_sdk", "      3. Check RPC connection");
+                            error!(target: "sol_trade_sdk", "   ⚠️ Process will exit in 5 seconds, restart after fixing the above");
+                        }
+                        std::thread::sleep(std::time::Duration::from_secs(5));
+                        panic!(
+                            "❌ WSOL ATA creation failed and account does not exist: {}. Error: {}",
+                            wsol_ata, err
+                        );
+                    }
                 } else {
-                    println!("ℹ️ WSOL ATA已存在（无需创建）");
+                    if sdk_log::sdk_log_enabled() {
+                        info!(target: "sol_trade_sdk", "ℹ️ WSOL ATA already exists (no need to create)");
+                    }
                 }
             }
         }
@@ -366,6 +480,10 @@ impl TradingClient {
     /// Returns a configured `SolTradingSDK` instance ready for trading operations
     #[inline]
     pub async fn new(payer: Arc<Keypair>, trade_config: TradeConfig) -> Self {
+        // 设置 SDK 全局日志开关，后续所有 SDK 内日志（SWQOS/WSOL/耗时等）均受此控制
+        sdk_log::set_sdk_log_enabled(trade_config.log_enabled);
+        // 预热高性能时钟，避免首笔交易时触发 3 次 Utc::now() 校准
+        let _ = crate::common::clock::now_micros();
         // Create infrastructure from trade config
         let infra_config = InfrastructureConfig::from_trade_config(&trade_config);
         let infrastructure = Arc::new(TradingInfrastructure::new(infra_config).await);
@@ -383,6 +501,8 @@ impl TradingClient {
             infrastructure,
             middleware_manager: None,
             use_seed_optimize: trade_config.use_seed_optimize,
+            use_core_affinity: trade_config.use_core_affinity,
+            log_enabled: trade_config.log_enabled,
         };
 
         let mut current = INSTANCE.lock();
@@ -465,8 +585,9 @@ impl TradingClient {
         params: TradeBuyParams,
     ) -> Result<(bool, Vec<Signature>, Option<TradeError>), anyhow::Error> {
         #[cfg(feature = "perf-trace")]
-        if params.slippage_basis_points.is_none() {
+        if sdk_log::sdk_log_enabled() && params.slippage_basis_points.is_none() {
-            log::debug!(
+            debug!(
+                target: "sol_trade_sdk",
                 "slippage_basis_points is none, use default slippage basis points: {}",
                 DEFAULT_SLIPPAGE
             );
@@ -513,28 +634,13 @@ impl TradingClient {
             fixed_output_amount: params.fixed_output_token_amount,
             gas_fee_strategy: params.gas_fee_strategy,
             simulate: params.simulate,
+            log_enabled: self.log_enabled,
+            use_core_affinity: self.use_core_affinity,
+            grpc_recv_us: params.grpc_recv_us,
             use_exact_sol_amount: params.use_exact_sol_amount,
         };
 
-        // Validate protocol params
+        if !validate_protocol_params(params.dex_type, &protocol_params) {
-        let is_valid_params = match params.dex_type {
-            DexType::PumpFun => protocol_params.as_any().downcast_ref::<PumpFunParams>().is_some(),
-            DexType::PumpSwap => {
-                protocol_params.as_any().downcast_ref::<PumpSwapParams>().is_some()
-            }
-            DexType::Bonk => protocol_params.as_any().downcast_ref::<BonkParams>().is_some(),
-            DexType::RaydiumCpmm => {
-                protocol_params.as_any().downcast_ref::<RaydiumCpmmParams>().is_some()
-            }
-            DexType::RaydiumAmmV4 => {
-                protocol_params.as_any().downcast_ref::<RaydiumAmmV4Params>().is_some()
-            }
-            DexType::MeteoraDammV2 => {
-                protocol_params.as_any().downcast_ref::<MeteoraDammV2Params>().is_some()
-            }
-        };
-
-        if !is_valid_params {
             return Err(anyhow::anyhow!("Invalid protocol params for Trade"));
         }
 
@@ -575,8 +681,9 @@ impl TradingClient {
         params: TradeSellParams,
     ) -> Result<(bool, Vec<Signature>, Option<TradeError>), anyhow::Error> {
         #[cfg(feature = "perf-trace")]
-        if params.slippage_basis_points.is_none() {
+        if sdk_log::sdk_log_enabled() && params.slippage_basis_points.is_none() {
-            log::debug!(
+            debug!(
+                target: "sol_trade_sdk",
                 "slippage_basis_points is none, use default slippage basis points: {}",
                 DEFAULT_SLIPPAGE
             );
@@ -623,32 +730,16 @@ impl TradingClient {
             fixed_output_amount: params.fixed_output_token_amount,
             gas_fee_strategy: params.gas_fee_strategy,
             simulate: params.simulate,
+            log_enabled: self.log_enabled,
+            use_core_affinity: self.use_core_affinity,
+            grpc_recv_us: params.grpc_recv_us,
             use_exact_sol_amount: None,
         };
 
-        // Validate protocol params
+        if !validate_protocol_params(params.dex_type, &protocol_params) {
-        let is_valid_params = match params.dex_type {
-            DexType::PumpFun => protocol_params.as_any().downcast_ref::<PumpFunParams>().is_some(),
-            DexType::PumpSwap => {
-                protocol_params.as_any().downcast_ref::<PumpSwapParams>().is_some()
-            }
-            DexType::Bonk => protocol_params.as_any().downcast_ref::<BonkParams>().is_some(),
-            DexType::RaydiumCpmm => {
-                protocol_params.as_any().downcast_ref::<RaydiumCpmmParams>().is_some()
-            }
-            DexType::RaydiumAmmV4 => {
-                protocol_params.as_any().downcast_ref::<RaydiumAmmV4Params>().is_some()
-            }
-            DexType::MeteoraDammV2 => {
-                protocol_params.as_any().downcast_ref::<MeteoraDammV2Params>().is_some()
-            }
-        };
-
-        if !is_valid_params {
             return Err(anyhow::anyhow!("Invalid protocol params for Trade"));
         }
 
-        // Execute sell based on tip preference
         let swap_result = executor.swap(sell_params).await;
         let result =
             swap_result.map(|(success, sigs, err)| (success, sigs, err.map(TradeError::from)));
@@ -842,4 +933,53 @@ impl TradingClient {
         let signature = self.infrastructure.rpc.send_and_confirm_transaction(&transaction).await?;
         Ok(signature.to_string())
     }
+
+    /// Claim Bonding Curve (Pump) cashback.
+    ///
+    /// Transfers native SOL from the user's UserVolumeAccumulator to the wallet.
+    /// If there is nothing to claim, the transaction may still succeed with no SOL transferred.
+    ///
+    /// # Returns
+    /// * `Ok(String)` - Transaction signature
+    /// * `Err(anyhow::Error)` - Build or send failure (e.g. invalid PDA)
+    pub async fn claim_cashback_pumpfun(&self) -> Result<String, anyhow::Error> {
+        use solana_sdk::transaction::Transaction;
+        let ix = crate::instruction::pumpfun::claim_cashback_pumpfun_instruction(&self.payer.pubkey())
+            .ok_or_else(|| anyhow::anyhow!("Failed to build PumpFun claim_cashback instruction"))?;
+        let recent_blockhash = self.infrastructure.rpc.get_latest_blockhash().await?;
+        let mut transaction = Transaction::new_with_payer(&[ix], Some(&self.payer.pubkey()));
+        transaction.sign(&[&*self.payer], recent_blockhash);
+        let signature = self.infrastructure.rpc.send_and_confirm_transaction(&transaction).await?;
+        Ok(signature.to_string())
+    }
+
+    /// Claim PumpSwap (AMM) cashback.
+    ///
+    /// Transfers WSOL from the UserVolumeAccumulator to the user's WSOL ATA.
+    /// Creates the user's WSOL ATA idempotently if it does not exist, then claims.
+    ///
+    /// # Returns
+    /// * `Ok(String)` - Transaction signature
+    /// * `Err(anyhow::Error)` - Build or send failure
+    pub async fn claim_cashback_pumpswap(&self) -> Result<String, anyhow::Error> {
+        use solana_sdk::transaction::Transaction;
+        let mut instructions = crate::common::fast_fn::create_associated_token_account_idempotent_fast_use_seed(
+            &self.payer.pubkey(),
+            &self.payer.pubkey(),
+            &WSOL_TOKEN_ACCOUNT,
+            &crate::constants::TOKEN_PROGRAM,
+            self.use_seed_optimize,
+        );
+        let ix = crate::instruction::pumpswap::claim_cashback_pumpswap_instruction(
+            &self.payer.pubkey(),
+            WSOL_TOKEN_ACCOUNT,
+            crate::constants::TOKEN_PROGRAM,
+        ).ok_or_else(|| anyhow::anyhow!("Failed to build PumpSwap claim_cashback instruction"))?;
+        instructions.push(ix);
+        let recent_blockhash = self.infrastructure.rpc.get_latest_blockhash().await?;
+        let mut transaction = Transaction::new_with_payer(&instructions, Some(&self.payer.pubkey()));
+        transaction.sign(&[&*self.payer], recent_blockhash);
+        let signature = self.infrastructure.rpc.send_and_confirm_transaction(&transaction).await?;
+        Ok(signature.to_string())
+    }
 }

src/perf/compiler_optimization.rs

@@ -140,7 +140,7 @@ impl CompilerOptimizer {
     
     /// 🚀 生成超高性能编译配置
     pub fn generate_ultra_performance_config(&self) -> Result<CompilerConfig> {
-        log::info!("🚀 Generating ultra-performance compiler configuration...");
+        tracing::info!(target: "sol_trade_sdk","🚀 Generating ultra-performance compiler configuration...");
         
         let mut rustflags = Vec::new();
         
@@ -206,7 +206,7 @@ impl CompilerOptimizer {
             cargo_config: self.generate_cargo_config(),
         };
         
-        log::info!("✅ Ultra-performance compiler configuration generated");
+        tracing::info!(target: "sol_trade_sdk","✅ Ultra-performance compiler configuration generated");
         Ok(config)
     }
     

src/perf/hardware_optimizations.rs

@@ -1,11 +1,5 @@
-//! 🚀 硬件级性能优化 - CPU缓存行对齐 & SIMD加速
+//! Hardware-oriented optimizations: cache-line alignment, prefetch, SIMD, branch hints, memory barriers.
-//! 
+//! 硬件级优化：缓存行对齐与预取、SIMD、分支提示、内存屏障。
-//! 实现CPU硬件特性的深度利用，包括：
-//! - 缓存行对齐和缓存预取
-//! - SIMD指令集优化
-//! - 分支预测优化
-//! - 内存屏障控制
-//! - CPU指令流水线优化
 
 use std::sync::atomic::{AtomicU64, Ordering};
 use std::mem::size_of;
@@ -13,26 +7,23 @@ use std::ptr;
 use crossbeam_utils::CachePadded;
 use anyhow::Result;
 
-// CPU缓存行大小常量 (通常为64字节)
+/// Typical CPU cache line size in bytes. 典型 CPU 缓存行大小（字节）。
 pub const CACHE_LINE_SIZE: usize = 64;
 
-/// 🚀 硬件优化的数据结构基础特征
+/// Trait for cache-line-aligned data and prefetch. 缓存行对齐与预取 trait。
 pub trait CacheLineAligned {
-    /// 确保数据结构按缓存行对齐
     fn ensure_cache_aligned(&self) -> bool;
-    /// 预取数据到CPU缓存
     fn prefetch_data(&self);
 }
 
-/// 🚀 SIMD优化的内存操作
+/// SIMD-accelerated memory operations. SIMD 加速的内存操作。
 pub struct SIMDMemoryOps;
 
 impl SIMDMemoryOps {
-    /// 🚀 SIMD加速的内存拷贝 - 针对小数据包优化
+    /// SIMD-optimized copy by size class. 按长度分派的 SIMD 拷贝。
     #[inline(always)]
     pub unsafe fn memcpy_simd_optimized(dst: *mut u8, src: *const u8, len: usize) {
         match len {
-            // 针对不同数据大小使用不同优化策略
             0 => return,
             1..=8 => Self::memcpy_small(dst, src, len),
             9..=16 => Self::memcpy_sse(dst, src, len),
@@ -42,7 +33,7 @@ impl SIMDMemoryOps {
         }
     }
     
-    /// 小数据拷贝优化 (1-8字节)
+    /// Copy 1–8 bytes (scalar / small word). 小数据拷贝（1–8 字节）。
     #[inline(always)]
     unsafe fn memcpy_small(dst: *mut u8, src: *const u8, len: usize) {
         match len {
@@ -63,7 +54,7 @@ impl SIMDMemoryOps {
         }
     }
     
-    /// SSE优化拷贝 (9-16字节)
+    /// Copy 9–16 bytes using SSE (128-bit). SSE 拷贝（9–16 字节）。
     #[inline(always)]
     unsafe fn memcpy_sse(dst: *mut u8, src: *const u8, len: usize) {
         #[cfg(target_arch = "x86_64")]
@@ -82,7 +73,7 @@ impl SIMDMemoryOps {
         }
     }
     
-    /// AVX优化拷贝 (17-32字节)
+    /// Copy 17–32 bytes using AVX (256-bit). AVX 拷贝（17–32 字节）。
     #[inline(always)]
     unsafe fn memcpy_avx(dst: *mut u8, src: *const u8, len: usize) {
         #[cfg(target_arch = "x86_64")]
@@ -101,19 +92,16 @@ impl SIMDMemoryOps {
         }
     }
     
-    /// AVX2优化拷贝 (33-64字节)
+    /// Copy 33–64 bytes using AVX2 (256-bit, two chunks). AVX2 拷贝（33–64 字节，两段）。
     #[inline(always)]
     unsafe fn memcpy_avx2(dst: *mut u8, src: *const u8, len: usize) {
         #[cfg(target_arch = "x86_64")]
         {
             use std::arch::x86_64::{__m256i, _mm256_loadu_si256, _mm256_storeu_si256};
             
-            // 拷贝前32字节
             let chunk1 = _mm256_loadu_si256(src as *const __m256i);
             _mm256_storeu_si256(dst as *mut __m256i, chunk1);
-            
             if len > 32 {
-                // 拷贝剩余字节
                 let remaining = len - 32;
                 if remaining <= 32 {
                     let chunk2 = _mm256_loadu_si256(src.add(32) as *const __m256i);
@@ -128,7 +116,7 @@ impl SIMDMemoryOps {
         }
     }
     
-    /// AVX512或回退拷贝 (>64字节)
+    /// Copy >64 bytes: AVX-512 64-byte chunks when available, else AVX2 32-byte chunks. >64 字节：有 AVX512 用 64 字节块，否则 AVX2 32 字节块。
     #[inline(always)]
     unsafe fn memcpy_avx512_or_fallback(dst: *mut u8, src: *const u8, len: usize) {
         #[cfg(all(target_arch = "x86_64", target_feature = "avx512f"))]
@@ -138,14 +126,12 @@ impl SIMDMemoryOps {
             let chunks = len / 64;
             let mut offset = 0;
             
-            // 使用AVX512处理64字节块
             for _ in 0..chunks {
                 let chunk = _mm512_loadu_si512(src.add(offset) as *const __m512i);
                 _mm512_storeu_si512(dst.add(offset) as *mut __m512i, chunk);
                 offset += 64;
             }
             
-            // 处理剩余字节
             let remaining = len % 64;
             if remaining > 0 {
                 Self::memcpy_avx2(dst.add(offset), src.add(offset), remaining);
@@ -154,7 +140,6 @@ impl SIMDMemoryOps {
         
         #[cfg(not(all(target_arch = "x86_64", target_feature = "avx512f")))]
         {
-            // 回退到AVX2分块处理
             let chunks = len / 32;
             let mut offset = 0;
             
@@ -170,7 +155,7 @@ impl SIMDMemoryOps {
         }
     }
     
-    /// 🚀 SIMD加速的内存比较
+    /// SIMD-optimized byte equality; dispatches by length (small / SSE / AVX2 / large). SIMD 加速的内存比较，按长度分派。
     #[inline(always)]
     pub unsafe fn memcmp_simd_optimized(a: *const u8, b: *const u8, len: usize) -> bool {
         match len {
@@ -182,7 +167,7 @@ impl SIMDMemoryOps {
         }
     }
     
-    /// 小数据比较
+    /// Compare 1–8 bytes (scalar). 小数据比较（1–8 字节）。
     #[inline(always)]
     unsafe fn memcmp_small(a: *const u8, b: *const u8, len: usize) -> bool {
         match len {
@@ -198,7 +183,7 @@ impl SIMDMemoryOps {
         }
     }
     
-    /// SSE比较
+    /// Compare 9–16 bytes using SSE. SSE 比较（9–16 字节）。
     #[inline(always)]
     unsafe fn memcmp_sse(a: *const u8, b: *const u8, len: usize) -> bool {
         #[cfg(target_arch = "x86_64")]
@@ -210,7 +195,6 @@ impl SIMDMemoryOps {
             let cmp_result = _mm_cmpeq_epi8(chunk_a, chunk_b);
             let mask = _mm_movemask_epi8(cmp_result) as u32;
             
-            // 检查前len字节是否相等
             let valid_mask = if len >= 16 { 0xFFFF } else { (1u32 << len) - 1 };
             (mask & valid_mask) == valid_mask
         }
@@ -221,7 +205,7 @@ impl SIMDMemoryOps {
         }
     }
     
-    /// AVX2比较
+    /// Compare 17–32 bytes using AVX2. AVX2 比较（17–32 字节）。
     #[inline(always)]
     unsafe fn memcmp_avx2(a: *const u8, b: *const u8, len: usize) -> bool {
         #[cfg(target_arch = "x86_64")]
@@ -243,7 +227,7 @@ impl SIMDMemoryOps {
         }
     }
     
-    /// 大数据比较
+    /// Compare >32 bytes in 32-byte AVX2 chunks. 大数据比较（32 字节 AVX2 分块）。
     #[inline(always)]
     unsafe fn memcmp_large(a: *const u8, b: *const u8, len: usize) -> bool {
         let chunks = len / 32;
@@ -263,7 +247,7 @@ impl SIMDMemoryOps {
         true
     }
     
-    /// 🚀 SIMD加速的内存清零
+    /// SIMD-optimized zero memory. SIMD 加速的内存清零。
     #[inline(always)]
     pub unsafe fn memzero_simd_optimized(ptr: *mut u8, len: usize) {
         #[cfg(target_arch = "x86_64")]
@@ -279,7 +263,6 @@ impl SIMDMemoryOps {
                 offset += 32;
             }
             
-            // 处理剩余字节
             let remaining = len % 32;
             for i in 0..remaining {
                 *ptr.add(offset + i) = 0;
@@ -293,14 +276,15 @@ impl SIMDMemoryOps {
     }
 }
 
-/// 🚀 缓存行对齐的原子计数器
+/// Cache-line-aligned atomic counter. 缓存行对齐的原子计数器。
-#[repr(align(64))] // 强制64字节对齐
+#[repr(align(64))]
 pub struct CacheAlignedCounter {
     value: AtomicU64,
     _padding: [u8; CACHE_LINE_SIZE - size_of::<AtomicU64>()],
 }
 
 impl CacheAlignedCounter {
+    /// Create counter with initial value. 创建并设置初值。
     pub fn new(initial: u64) -> Self {
         Self {
             value: AtomicU64::new(initial),
@@ -339,23 +323,18 @@ impl CacheLineAligned for CacheAlignedCounter {
     }
 }
 
-/// 🚀 缓存友好的环形缓冲区
+/// Cache-friendly lock-free ring buffer. 缓存友好的无锁环形缓冲区。
 #[repr(align(64))]
 pub struct CacheOptimizedRingBuffer<T> {
-    /// 数据缓冲区
     buffer: Vec<T>,
-    /// 生产者头指针 (独占缓存行)
     producer_head: CachePadded<AtomicU64>,
-    /// 消费者尾指针 (独占缓存行) 
     consumer_tail: CachePadded<AtomicU64>,
-    /// 容量 (2的幂次方)
     capacity: usize,
-    /// 掩码 (capacity - 1)
     mask: usize,
 }
 
 impl<T: Copy + Default> CacheOptimizedRingBuffer<T> {
-    /// 创建缓存优化的环形缓冲区
+    /// Create ring buffer; capacity must be a power of 2. 创建环形缓冲区，容量须为 2 的幂。
     pub fn new(capacity: usize) -> Result<Self> {
         if !capacity.is_power_of_two() {
             return Err(anyhow::anyhow!("Capacity must be a power of 2"));
@@ -373,53 +352,41 @@ impl<T: Copy + Default> CacheOptimizedRingBuffer<T> {
         })
     }
     
-    /// 🚀 无锁写入元素
+    /// Lock-free push; returns false if full. 无锁写入，满则返回 false。
     #[inline(always)]
     pub fn try_push(&self, item: T) -> bool {
         let current_head = self.producer_head.load(Ordering::Relaxed);
         let current_tail = self.consumer_tail.load(Ordering::Acquire);
-        
-        // 检查是否还有空间
         if (current_head + 1) & self.mask as u64 == current_tail & self.mask as u64 {
-            return false; // 缓冲区满
+            return false;
         }
-        
-        // 写入数据
         unsafe {
             let index = current_head & self.mask as u64;
             let ptr = self.buffer.as_ptr().add(index as usize) as *mut T;
             ptr.write(item);
         }
-        
-        // 发布新的头指针
         self.producer_head.store(current_head + 1, Ordering::Release);
         true
     }
     
-    /// 🚀 无锁读取元素
+    /// Lock-free pop; returns None if empty. 无锁读取，空则返回 None。
     #[inline(always)]
     pub fn try_pop(&self) -> Option<T> {
         let current_tail = self.consumer_tail.load(Ordering::Relaxed);
         let current_head = self.producer_head.load(Ordering::Acquire);
-        
-        // 检查是否有数据
         if current_tail == current_head {
-            return None; // 缓冲区空
+            return None;
         }
-        
-        // 读取数据
         let item = unsafe {
             let index = current_tail & self.mask as u64;
             let ptr = self.buffer.as_ptr().add(index as usize);
             ptr.read()
         };
-        
-        // 发布新的尾指针
         self.consumer_tail.store(current_tail + 1, Ordering::Release);
         Some(item)
     }
     
-    /// 获取当前元素数量
+    /// Current number of elements. 当前元素个数。
     #[inline(always)]
     pub fn len(&self) -> usize {
         let head = self.producer_head.load(Ordering::Relaxed);
@@ -427,7 +394,7 @@ impl<T: Copy + Default> CacheOptimizedRingBuffer<T> {
         ((head + self.capacity as u64 - tail) & self.mask as u64) as usize
     }
     
-    /// 检查是否为空
+    /// True if no elements. 是否为空。
     #[inline(always)]
     pub fn is_empty(&self) -> bool {
         self.producer_head.load(Ordering::Relaxed) == 
@@ -445,24 +412,18 @@ impl<T> CacheLineAligned for CacheOptimizedRingBuffer<T> {
         unsafe {
             use std::arch::x86_64::_mm_prefetch;
             use std::arch::x86_64::_MM_HINT_T0;
-            
-            // 预取头指针
             _mm_prefetch(self.producer_head.as_ptr() as *const i8, _MM_HINT_T0);
-            
-            // 预取尾指针
             _mm_prefetch(self.consumer_tail.as_ptr() as *const i8, _MM_HINT_T0);
-            
-            // 预取缓冲区开始位置
             _mm_prefetch(self.buffer.as_ptr() as *const i8, _MM_HINT_T0);
         }
     }
 }
 
-/// 🚀 CPU分支预测优化工具
+/// Branch hint helpers (likely/unlikely) and prefetch. 分支提示与预取。
 pub struct BranchOptimizer;
 
 impl BranchOptimizer {
-    /// likely宏 - 告诉编译器条件大概率为真
+    /// Hint: condition is usually true. 提示编译器条件大概率为真。
     #[inline(always)]
     pub fn likely(condition: bool) -> bool {
         #[cold]
@@ -474,7 +435,7 @@ impl BranchOptimizer {
         condition
     }
     
-    /// unlikely宏 - 告诉编译器条件大概率为假
+    /// Hint: condition is usually false. 提示编译器条件大概率为假。
     #[inline(always)]
     pub fn unlikely(condition: bool) -> bool {
         #[cold]
@@ -486,7 +447,7 @@ impl BranchOptimizer {
         condition
     }
     
-    /// 预取指令 - 提前加载数据到缓存
+    /// Prefetch: load cache line at ptr into L1. Caller must ensure ptr is valid, read-only, no concurrent write. 预取：将 ptr 所在缓存行加载到 L1；调用方需保证有效、只读、无并发写。
     #[inline(always)]
     pub unsafe fn prefetch_read_data<T>(ptr: *const T) {
         #[cfg(target_arch = "x86_64")]
@@ -497,7 +458,7 @@ impl BranchOptimizer {
         }
     }
     
-    /// 预取指令 - 提前加载数据到缓存（写优化）
+    /// Prefetch for write (T1 hint). 写预取（T1 提示）。
     #[inline(always)]
     pub unsafe fn prefetch_write_data<T>(ptr: *const T) {
         #[cfg(target_arch = "x86_64")]
@@ -509,35 +470,35 @@ impl BranchOptimizer {
     }
 }
 
-/// 🚀 内存屏障控制
+/// Memory barrier helpers. 内存屏障辅助。
 pub struct MemoryBarriers;
 
 impl MemoryBarriers {
-    /// 编译器屏障 - 防止编译器重排序
+    /// Compiler barrier only (no CPU reorder). 仅编译器屏障，防止重排序。
     #[inline(always)]
     pub fn compiler_barrier() {
         std::sync::atomic::compiler_fence(Ordering::SeqCst);
     }
     
-    /// 轻量级内存屏障 - 仅CPU重排序保护
+    /// Light barrier (Acquire). 轻量级屏障（Acquire）。
     #[inline(always)]
     pub fn memory_barrier_light() {
         std::sync::atomic::fence(Ordering::Acquire);
     }
     
-    /// 重量级内存屏障 - 全序一致性
+    /// Full sequential consistency barrier. 全序一致性屏障。
     #[inline(always)]
     pub fn memory_barrier_heavy() {
         std::sync::atomic::fence(Ordering::SeqCst);
     }
     
-    /// 存储屏障 - 确保写入可见性
+    /// Store/release barrier. 存储屏障，保证写入可见性。
     #[inline(always)]
     pub fn store_barrier() {
         std::sync::atomic::fence(Ordering::Release);
     }
     
-    /// 加载屏障 - 确保读取正确性
+    /// Load/acquire barrier. 加载屏障，保证读取顺序。
     #[inline(always)]
     pub fn load_barrier() {
         std::sync::atomic::fence(Ordering::Acquire);

src/perf/mod.rs

@@ -1,11 +1,5 @@
-//! 🚀 性能优化模块
+//! Performance: SIMD, cache prefetch, branch hints, zero-copy I/O, syscall bypass, compiler hints.
-//!
+//! 性能优化：SIMD、缓存预取、分支提示、零拷贝 I/O、系统调用绕过、编译器提示。
-//! 提供多层次性能优化：
-//! - SIMD 向量化：AVX2 内存操作、批量计算
-//! - 硬件级优化：分支预测、缓存预取
-//! - 零拷贝 I/O：内存映射、DMA传输
-//! - 系统调用绕过：批处理、快速时间
-//! - 编译器优化：内联、向量化
 
 pub mod simd;
 pub mod hardware_optimizations;

src/perf/syscall_bypass.rs

@@ -1,13 +1,5 @@
-//! 🚀 系统调用绕过机制 - 最小化系统调用开销
+//! Syscall bypass: batching, vDSO fast time, io_uring, mmap, userspace impl.
-//! 
+//! 系统调用绕过：批处理、vDSO 快速时间、io_uring、mmap、用户态实现。
-//! 实现系统调用级别的极致优化，包括：
-//! - 系统调用批处理
-//! - vDSO快速系统调用
-//! - io_uring异步I/O优化
-//! - 内存映射系统调用
-//! - 用户空间系统调用实现
-//! - 系统调用拦截与优化
-//! - 直接硬件访问
 
 use std::sync::atomic::{AtomicU64, Ordering};
 use std::sync::Arc;
@@ -18,38 +10,25 @@ use std::fs::OpenOptions;
 use anyhow::Result;
 use crossbeam_utils::CachePadded;
 
-/// 🚀 系统调用绕过管理器
+/// Syscall bypass manager (batch, fast time, I/O). 系统调用绕过管理器。
 pub struct SystemCallBypassManager {
-    /// 绕过配置
     config: SyscallBypassConfig,
-    /// 批处理器
     batch_processor: Arc<SyscallBatchProcessor>,
-    /// 快速时间获取器
     fast_time_provider: Arc<FastTimeProvider>,
-    /// I/O优化器
     _io_optimizer: Arc<IOOptimizer>,
-    /// 统计信息
     stats: Arc<SyscallBypassStats>,
 }
 
-/// 系统调用绕过配置
+/// Syscall bypass configuration. 系统调用绕过配置。
 #[derive(Debug, Clone)]
 pub struct SyscallBypassConfig {
-    /// 启用系统调用批处理
     pub enable_batch_processing: bool,
-    /// 批处理大小
     pub batch_size: usize,
-    /// 启用快速时间获取
     pub enable_fast_time: bool,
-    /// 启用vDSO优化
     pub enable_vdso: bool,
-    /// 启用io_uring
     pub enable_io_uring: bool,
-    /// 启用内存映射优化
     pub enable_mmap_optimization: bool,
-    /// 启用用户空间实现
     pub enable_userspace_impl: bool,
-    /// 系统调用缓存大小
     pub syscall_cache_size: usize,
 }
 
@@ -68,30 +47,19 @@ impl Default for SyscallBypassConfig {
     }
 }
 
-/// 系统调用批处理器
 pub struct SyscallBatchProcessor {
-    /// 待处理的系统调用队列
     pending_calls: crossbeam_queue::ArrayQueue<SyscallRequest>,
-    /// 批处理线程池
     _executor: tokio::runtime::Handle,
-    /// 批处理统计
     batch_stats: CachePadded<AtomicU64>,
 }
 
-/// 系统调用请求
 #[derive(Debug, Clone)]
 pub enum SyscallRequest {
-    /// 文件写入
     Write { fd: i32, data: Vec<u8> },
-    /// 文件读取
     Read { fd: i32, size: usize },
-    /// 网络发送
     Send { socket: i32, data: Vec<u8> },
-    /// 网络接收
     Recv { socket: i32, size: usize },
-    /// 时间获取
     GetTime,
-    /// 内存分配
     MemAlloc { size: usize },
     /// 内存释放
     MemFree { ptr: usize },
@@ -132,7 +100,7 @@ impl FastTimeProvider {
             vdso_enabled: enable_vdso,
         };
         
-        log::info!("🚀 Fast time provider initialized with vDSO: {}", enable_vdso);
+        tracing::info!(target: "sol_trade_sdk","🚀 Fast time provider initialized with vDSO: {}", enable_vdso);
         Ok(provider)
     }
     
@@ -233,7 +201,7 @@ impl IOOptimizer {
     pub fn new(_config: &SyscallBypassConfig) -> Result<Self> {
         let io_uring_available = Self::check_io_uring_support();
         
-        log::info!("🚀 I/O Optimizer initialized - io_uring: {}", io_uring_available);
+        tracing::info!(target: "sol_trade_sdk","🚀 I/O Optimizer initialized - io_uring: {}", io_uring_available);
         
         Ok(Self {
             io_uring_available,
@@ -249,7 +217,7 @@ impl IOOptimizer {
             // 检查内核版本和io_uring支持
             if let Ok(uname) = std::process::Command::new("uname").arg("-r").output() {
                 let kernel_version = String::from_utf8_lossy(&uname.stdout);
-                log::info!("Kernel version: {}", kernel_version.trim());
+                tracing::info!(target: "sol_trade_sdk","Kernel version: {}", kernel_version.trim());
                 
                 // 简单检查：内核版本 >= 5.1 支持io_uring
                 if let Some(version_str) = kernel_version.split('.').next() {
@@ -277,7 +245,7 @@ impl IOOptimizer {
     /// 使用io_uring进行批量写入
     async fn io_uring_batch_write(&self, requests: &[(i32, &[u8])]) -> Result<Vec<usize>> {
         // 这里是伪代码 - 实际实现需要io_uring库
-        log::trace!("Using io_uring for {} write operations", requests.len());
+        tracing::trace!(target: "sol_trade_sdk","Using io_uring for {} write operations", requests.len());
         
         let mut results = Vec::with_capacity(requests.len());
         
@@ -362,7 +330,7 @@ impl IOOptimizer {
                 
                 self.mmap_regions.push(region);
                 
-                log::info!("✅ Memory mapped I/O created: {} bytes at {:p}", size, addr);
+                tracing::info!(target: "sol_trade_sdk","✅ Memory mapped I/O created: {} bytes at {:p}", size, addr);
                 Ok(addr as usize)
             }
         }
@@ -390,7 +358,7 @@ impl SyscallBatchProcessor {
         let pending_calls = crossbeam_queue::ArrayQueue::new(batch_size * 10);
         let executor = tokio::runtime::Handle::current();
         
-        log::info!("🚀 Syscall batch processor created with batch size: {}", batch_size);
+        tracing::info!(target: "sol_trade_sdk","🚀 Syscall batch processor created with batch size: {}", batch_size);
         
         Ok(Self {
             pending_calls,
@@ -464,7 +432,7 @@ impl SyscallBatchProcessor {
         
         self.batch_stats.fetch_add(1, Ordering::Relaxed);
         
-        log::trace!("Executed batch of {} syscalls", batch_size);
+        tracing::trace!(target: "sol_trade_sdk","Executed batch of {} syscalls", batch_size);
         Ok(batch_size)
     }
     
@@ -473,7 +441,7 @@ impl SyscallBatchProcessor {
         // 使用writev系统调用进行批量写入
         for (fd, data) in requests {
             // 实际实现会使用writev或io_uring
-            log::trace!("Batched write to fd {}: {} bytes", fd, data.len());
+            tracing::trace!(target: "sol_trade_sdk","Batched write to fd {}: {} bytes", fd, data.len());
         }
         Ok(())
     }
@@ -482,7 +450,7 @@ impl SyscallBatchProcessor {
     async fn batch_read_operations(&self, requests: Vec<(i32, usize)>) -> Result<()> {
         // 使用readv系统调用进行批量读取
         for (fd, size) in requests {
-            log::trace!("Batched read from fd {}: {} bytes", fd, size);
+            tracing::trace!(target: "sol_trade_sdk","Batched read from fd {}: {} bytes", fd, size);
         }
         Ok(())
     }
@@ -491,7 +459,7 @@ impl SyscallBatchProcessor {
     async fn batch_network_operations(&self, requests: Vec<(i32, Vec<u8>)>) -> Result<()> {
         // 使用sendmsg/recvmsg进行批量网络操作
         for (socket, data) in requests {
-            log::trace!("Batched network send to socket {}: {} bytes", socket, data.len());
+            tracing::trace!(target: "sol_trade_sdk","Batched network send to socket {}: {} bytes", socket, data.len());
         }
         Ok(())
     }
@@ -515,11 +483,11 @@ impl SystemCallBypassManager {
         let io_optimizer = Arc::new(IOOptimizer::new(&config)?);
         let stats = Arc::new(SyscallBypassStats::default());
         
-        log::info!("🚀 System Call Bypass Manager initialized");
+        tracing::info!(target: "sol_trade_sdk","🚀 System Call Bypass Manager initialized");
-        log::info!("   📦 Batch Processing: {}", config.enable_batch_processing);
+        tracing::info!(target: "sol_trade_sdk","   📦 Batch Processing: {}", config.enable_batch_processing);
-        log::info!("   ⏰ Fast Time: {}", config.enable_fast_time);
+        tracing::info!(target: "sol_trade_sdk","   ⏰ Fast Time: {}", config.enable_fast_time);
-        log::info!("   🚀 vDSO: {}", config.enable_vdso);
+        tracing::info!(target: "sol_trade_sdk","   🚀 vDSO: {}", config.enable_vdso);
-        log::info!("   📁 io_uring: {}", config.enable_io_uring);
+        tracing::info!(target: "sol_trade_sdk","   📁 io_uring: {}", config.enable_io_uring);
         
         Ok(Self {
             config,
@@ -626,7 +594,7 @@ impl SystemCallBypassManager {
             }
         });
         
-        log::info!("✅ Batch processing worker started");
+        tracing::info!(target: "sol_trade_sdk","✅ Batch processing worker started");
         Ok(())
     }
     
@@ -669,16 +637,16 @@ pub struct SyscallBypassStatsSnapshot {
 impl SyscallBypassStatsSnapshot {
     /// 打印统计信息
     pub fn print_stats(&self) {
-        log::info!("📊 System Call Bypass Stats:");
+        tracing::info!(target: "sol_trade_sdk","📊 System Call Bypass Stats:");
-        log::info!("   🚫 Syscalls Bypassed: {}", self.syscalls_bypassed);
+        tracing::info!(target: "sol_trade_sdk","   🚫 Syscalls Bypassed: {}", self.syscalls_bypassed);
-        log::info!("   📦 Syscalls Batched: {}", self.syscalls_batched);
+        tracing::info!(target: "sol_trade_sdk","   📦 Syscalls Batched: {}", self.syscalls_batched);
-        log::info!("   ⏰ Time Calls Cached: {}", self.time_calls_cached);
+        tracing::info!(target: "sol_trade_sdk","   ⏰ Time Calls Cached: {}", self.time_calls_cached);
-        log::info!("   📁 I/O Operations Optimized: {}", self.io_operations_optimized);
+        tracing::info!(target: "sol_trade_sdk","   📁 I/O Operations Optimized: {}", self.io_operations_optimized);
-        log::info!("   💾 Memory Operations Avoided: {}", self.memory_operations_avoided);
+        tracing::info!(target: "sol_trade_sdk","   💾 Memory Operations Avoided: {}", self.memory_operations_avoided);
         
         let total_optimizations = self.syscalls_bypassed + self.time_calls_cached + 
                                  self.io_operations_optimized + self.memory_operations_avoided;
-        log::info!("   🏆 Total Optimizations: {}", total_optimizations);
+        tracing::info!(target: "sol_trade_sdk","   🏆 Total Optimizations: {}", total_optimizations);
     }
 }
 

src/perf/zero_copy_io.rs

@@ -73,7 +73,7 @@ impl SharedMemoryPool {
             free_blocks.push(AtomicU64::new(bits));
         }
         
-        log::info!("🚀 Created shared memory pool {} with {} blocks of {} bytes each", 
+        tracing::info!(target: "sol_trade_sdk","🚀 Created shared memory pool {} with {} blocks of {} bytes each", 
                   pool_id, total_blocks, aligned_block_size);
         
         Ok(Self {
@@ -155,7 +155,7 @@ impl SharedMemoryPool {
     #[inline(always)]
     pub fn deallocate_block(&self, block: ZeroCopyBlock) {
         if block.pool_id != self.pool_id {
-            log::error!("Attempting to deallocate block from wrong pool");
+            tracing::error!(target: "sol_trade_sdk", "Attempting to deallocate block from wrong pool");
             return;
         }
         
@@ -267,7 +267,7 @@ impl MemoryMappedBuffer {
             .map_anon()
             .context("Failed to create memory mapped buffer")?;
         
-        log::info!("🚀 Created memory mapped buffer {} with size {} bytes", buffer_id, size);
+        tracing::info!(target: "sol_trade_sdk","🚀 Created memory mapped buffer {} with size {} bytes", buffer_id, size);
         
         Ok(Self {
             mmap,
@@ -425,7 +425,7 @@ impl DirectMemoryAccessManager {
             dma_channels.push(Arc::new(DMAChannel::new(i)?));
         }
         
-        log::info!("🚀 Created DMA manager with {} channels", num_channels);
+        tracing::info!(target: "sol_trade_sdk","🚀 Created DMA manager with {} channels", num_channels);
         
         Ok(Self {
             dma_channels,
@@ -549,12 +549,12 @@ impl ZeroCopyStats {
         let bytes = self.bytes_transferred.load(Ordering::Relaxed);
         let mmap_usage = self.mmap_buffer_usage.load(Ordering::Relaxed);
         
-        log::info!("🚀 Zero-Copy Stats:");
+        tracing::info!(target: "sol_trade_sdk","🚀 Zero-Copy Stats:");
-        log::info!("   📦 Blocks: Allocated={}, Freed={}, Active={}", 
+        tracing::info!(target: "sol_trade_sdk","   📦 Blocks: Allocated={}, Freed={}, Active={}", 
                   allocated, freed, allocated.saturating_sub(freed));
-        log::info!("   📊 Bytes Transferred: {} ({:.2} MB)", 
+        tracing::info!(target: "sol_trade_sdk","   📊 Bytes Transferred: {} ({:.2} MB)", 
                   bytes, bytes as f64 / 1024.0 / 1024.0);
-        log::info!("   💾 Memory Mapped Usage: {} ({:.2} MB)", 
+        tracing::info!(target: "sol_trade_sdk","   💾 Memory Mapped Usage: {} ({:.2} MB)", 
                   mmap_usage, mmap_usage as f64 / 1024.0 / 1024.0);
     }
 }
@@ -581,10 +581,10 @@ impl ZeroCopyMemoryManager {
         let dma_manager = Arc::new(DirectMemoryAccessManager::new(16)?); // 16 DMA channels
         let stats = Arc::new(ZeroCopyStats::new());
         
-        log::info!("🚀 Zero-Copy Memory Manager initialized");
+        tracing::info!(target: "sol_trade_sdk","🚀 Zero-Copy Memory Manager initialized");
-        log::info!("   📦 Memory Pools: {}", shared_pools.len());
+        tracing::info!(target: "sol_trade_sdk","   📦 Memory Pools: {}", shared_pools.len());
-        log::info!("   💾 Mapped Buffers: {}", mmap_buffers.len());
+        tracing::info!(target: "sol_trade_sdk","   💾 Mapped Buffers: {}", mmap_buffers.len());
-        log::info!("   🔄 DMA Channels: 16");
+        tracing::info!(target: "sol_trade_sdk","   🔄 DMA Channels: 16");
         
         Ok(Self {
             shared_pools,

src/swqos/astralane.rs

@@ -1,13 +1,12 @@
-use crate::swqos::common::{poll_transaction_confirmation, serialize_transaction_and_encode};
+use crate::swqos::common::{default_http_client_builder, poll_transaction_confirmation};
 use rand::seq::IndexedRandom;
 use reqwest::Client;
-use serde_json::json;
 use std::{sync::Arc, time::Instant};
 
 use std::time::Duration;
-use solana_transaction_status::UiTransactionEncoding;
-
 use anyhow::Result;
+use bincode::serialize as bincode_serialize;
+use solana_client::rpc_client::SerializableTransaction;
 use solana_sdk::transaction::VersionedTransaction;
 use crate::swqos::{SwqosType, TradeType};
 use crate::swqos::SwqosClientTrait;
@@ -17,6 +16,9 @@ use crate::{common::SolanaRpcClient, constants::swqos::ASTRALANE_TIP_ACCOUNTS};
 use tokio::task::JoinHandle;
 use std::sync::atomic::{AtomicBool, Ordering};
 
+/// Empty body for getHealth POST; avoid per-request allocation.
+static PING_BODY: &[u8] = &[];
+
 #[derive(Clone)]
 pub struct AstralaneClient {
     pub endpoint: String,
@@ -50,19 +52,7 @@ impl SwqosClientTrait for AstralaneClient {
 impl AstralaneClient {
     pub fn new(rpc_url: String, endpoint: String, auth_token: String) -> Self {
         let rpc_client = SolanaRpcClient::new(rpc_url);
-        let http_client = Client::builder()
+        let http_client = default_http_client_builder().build().unwrap();
-            // Optimized connection pool settings for high performance
-            .pool_idle_timeout(Duration::from_secs(120))
-            .pool_max_idle_per_host(256)  // Increased from 64 to 256
-            .tcp_keepalive(Some(Duration::from_secs(60)))  // Reduced from 1200 to 60
-            .tcp_nodelay(true)  // Disable Nagle's algorithm for lower latency
-            .http2_keep_alive_interval(Duration::from_secs(10))
-            .http2_keep_alive_timeout(Duration::from_secs(5))
-            .http2_adaptive_window(true)  // Enable adaptive flow control
-            .timeout(Duration::from_millis(3000))  // Reduced from 10s to 3s
-            .connect_timeout(Duration::from_millis(2000))  // Reduced from 5s to 2s
-            .build()
-            .unwrap();
         
         let client = Self { 
             rpc_client: Arc::new(rpc_client), 
@@ -90,17 +80,12 @@ impl AstralaneClient {
         let stop_ping = self.stop_ping.clone();
         
         let handle = tokio::spawn(async move {
-            let mut interval = tokio::time::interval(Duration::from_secs(60)); // Ping every 60 seconds
+            let mut interval = tokio::time::interval(Duration::from_secs(30));
-            
             loop {
-                interval.tick().await;
+                interval.tick().await; // first tick completes immediately → one ping at start
-                
                 if stop_ping.load(Ordering::Relaxed) {
                     break;
                 }
-                
-                // Send ping request
-                tokio::time::sleep(Duration::from_secs(5)).await;
                 if let Err(e) = Self::send_ping_request(&http_client, &endpoint, &auth_token).await {
                     eprintln!("Astralane ping request failed: {}", e);
                 }
@@ -117,73 +102,49 @@ impl AstralaneClient {
         }
     }
 
-    /// Send ping request to /gethealth endpoint
+    /// Send ping request: POST endpoint?api-key=...&method=getHealth (endpoint is irisb from constants).
     async fn send_ping_request(http_client: &Client, endpoint: &str, auth_token: &str) -> Result<()> {
-        // Build ping URL by replacing /iris with /gethealth
+        let response = http_client
-        let ping_url = if endpoint.ends_with("/iris") {
+            .post(endpoint)
-            endpoint.replace("/iris", "/gethealth")
+            .query(&[("api-key", auth_token), ("method", "getHealth")])
-        } else if endpoint.ends_with("/iris/") {
+            .timeout(Duration::from_millis(1500))
-            endpoint.replace("/iris/", "/gethealth")
+            .body(PING_BODY)
-        } else if endpoint.ends_with('/') {
-            format!("{}gethealth", endpoint)
-        } else {
-            format!("{}/gethealth", endpoint)
-        };
-
-        // Send GET request to /gethealth endpoint with api_key header
-        let response = http_client.get(&ping_url)
-            .header("api_key", auth_token)
             .send()
             .await?;
-        
+        let status = response.status();
-        if response.status().is_success() {
+        let _ = response.bytes().await; // consume body so connection returns to pool
-            // ping successful, connection remains active
+        if !status.is_success() {
-            // println!("send getHealth to keep connection alive");
+            eprintln!("Astralane ping request returned non-success status: {}", status);
-        } else {
-            eprintln!("Astralane ping request returned non-success status: {}", response.status());
         }
-        
         Ok(())
     }
 
+    /// Send transaction via /irisb binary API (no Base64; lower latency).
     pub async fn send_transaction(&self, trade_type: TradeType, transaction: &VersionedTransaction, wait_confirmation: bool) -> Result<()> {
         let start_time = Instant::now();
-        let (content, signature) = serialize_transaction_and_encode(transaction, UiTransactionEncoding::Base64).await?;
+        let signature = transaction.get_signature();
 
-        let request_body = serde_json::to_string(&json!({
+        let body_bytes = bincode_serialize(transaction).map_err(|e| anyhow::anyhow!("Astralane binary serialize failed: {}", e))?;
-            "jsonrpc": "2.0",
-            "id": 1,
-            "method": "sendTransaction",
-            "params": [
-                content,
-                { "encoding": "base64", "skipPreflight": true },
-                { "mevProtect": false }
-            ]
-        }))?;
 
-        // Send request with api_key header
+        let response = self.http_client
-        let response_text = self.http_client.post(&self.endpoint)
+            .post(&self.endpoint)
-            .body(request_body)
+            .query(&[("api-key", self.auth_token.as_str()), ("method", "sendTransaction")])
-            .header("Content-Type", "application/json")
+            .header("Content-Type", "application/octet-stream")
-            .header("api_key", &self.auth_token)
+            .body(body_bytes)
             .send()
-            .await?
-            .text()
             .await?;
 
-        // Parse JSON response
+        let status = response.status();
-        if let Ok(response_json) = serde_json::from_str::<serde_json::Value>(&response_text) {
+        let _ = response.bytes().await;
-            if response_json.get("result").is_some() {
+        if status.is_success() {
-                println!(" [astralane] {} submitted: {:?}", trade_type, start_time.elapsed());
+            println!(" [astralane] {} submitted: {:?}", trade_type, start_time.elapsed());
-            } else if let Some(_error) = response_json.get("error") {
-                eprintln!(" [astralane] {} submission failed: {:?}", trade_type, _error);
-            }
         } else {
-            eprintln!(" [astralane] {} submission failed: {:?}", trade_type, response_text);
+            eprintln!(" [astralane] {} submission failed: status {}", trade_type, status);
+            return Err(anyhow::anyhow!("Astralane sendTransaction failed: {}", status));
         }
 
-        let start_time: Instant = Instant::now();
+        let start_time = Instant::now();
-        match poll_transaction_confirmation(&self.rpc_client, signature, wait_confirmation).await {
+        match poll_transaction_confirmation(&self.rpc_client, *signature, wait_confirmation).await {
             Ok(_) => (),
             Err(e) => {
                 println!(" signature: {:?}", signature);

src/swqos/blockrazor.rs

@@ -1,7 +1,6 @@
-use crate::swqos::common::{poll_transaction_confirmation, serialize_transaction_and_encode};
+use crate::swqos::common::{default_http_client_builder, poll_transaction_confirmation, serialize_transaction_and_encode};
 use rand::seq::IndexedRandom;
-use reqwest::{Client, header::{HeaderMap, HeaderValue, CONTENT_TYPE}};
+use reqwest::Client;
-use serde_json::json;
 use std::{sync::Arc, time::Instant};
 
 use std::time::Duration;
@@ -50,19 +49,7 @@ impl SwqosClientTrait for BlockRazorClient {
 impl BlockRazorClient {
     pub fn new(rpc_url: String, endpoint: String, auth_token: String) -> Self {
         let rpc_client = SolanaRpcClient::new(rpc_url);
-        let http_client = Client::builder()
+        let http_client = default_http_client_builder().build().unwrap();
-            // Optimized connection pool settings for high performance
-            .pool_idle_timeout(Duration::from_secs(120))
-            .pool_max_idle_per_host(256)  // Increased from 64 to 256
-            .tcp_keepalive(Some(Duration::from_secs(60)))  // Reduced from 1200 to 60
-            .tcp_nodelay(true)  // Disable Nagle's algorithm for lower latency
-            .http2_keep_alive_interval(Duration::from_secs(10))
-            .http2_keep_alive_timeout(Duration::from_secs(5))
-            .http2_adaptive_window(true)  // Enable adaptive flow control
-            .timeout(Duration::from_millis(3000))  // Reduced from 10s to 3s
-            .connect_timeout(Duration::from_millis(2000))  // Reduced from 5s to 2s
-            .build()
-            .unwrap();
         
         let client = Self { 
             rpc_client: Arc::new(rpc_client), 
@@ -90,18 +77,22 @@ impl BlockRazorClient {
         let stop_ping = self.stop_ping.clone();
         
         let handle = tokio::spawn(async move {
-            let mut interval = tokio::time::interval(Duration::from_secs(60)); // Ping every 60 seconds
+            // Immediate first ping to warm connection and reduce first-submit cold start latency
-            
+            if let Err(e) = Self::send_ping_request(&http_client, &endpoint, &auth_token).await {
+                if crate::common::sdk_log::sdk_log_enabled() {
+                    eprintln!("BlockRazor ping request failed: {}", e);
+                }
+            }
+            let mut interval = tokio::time::interval(Duration::from_secs(30));  // 30s keepalive to avoid server ~5min idle close
             loop {
                 interval.tick().await;
-                
                 if stop_ping.load(Ordering::Relaxed) {
                     break;
                 }
-                
-                // Send ping request
                 if let Err(e) = Self::send_ping_request(&http_client, &endpoint, &auth_token).await {
-                    eprintln!("BlockRazor ping request failed: {}", e);
+                    if crate::common::sdk_log::sdk_log_enabled() {
+                        eprintln!("BlockRazor ping request failed: {}", e);
+                    }
                 }
             }
         });
@@ -116,84 +107,63 @@ impl BlockRazorClient {
         }
     }
 
-    /// Send ping request to /health endpoint
+    /// Send ping request: POST /v2/health?auth=... (Keep Alive). Only required param: auth.
     async fn send_ping_request(http_client: &Client, endpoint: &str, auth_token: &str) -> Result<()> {
-        // Build health URL by replacing sendTransaction with health
+        let ping_url = endpoint.replace("/v2/sendTransaction", "/v2/health");
-        let ping_url = if endpoint.ends_with("sendTransaction") {
+        let response = http_client
-            endpoint.replace("sendTransaction", "health")
+            .post(&ping_url)
-        } else if endpoint.ends_with("/sendTransaction") {
+            .query(&[("auth", auth_token)])
-            endpoint.replace("/sendTransaction", "/health")
+            .header("Content-Type", "text/plain")
-        } else {
+            .timeout(Duration::from_millis(1500))
-            // Fallback to original logic if endpoint doesn't end with sendTransaction
+            .body(&[] as &[u8])
-            if endpoint.ends_with('/') {
-                format!("{}health", endpoint)
-            } else {
-                format!("{}/health", endpoint)
-            }
-        };
-
-        // Prepare headers
-        let mut headers = HeaderMap::new();
-        headers.insert("apikey", HeaderValue::from_str(auth_token)?);
-        headers.insert(CONTENT_TYPE, HeaderValue::from_static("application/json"));
-
-        // Send GET request to /health endpoint with headers
-        let response = http_client.get(&ping_url)
-            .headers(headers)
             .send()
             .await?;
-        
+        let status = response.status();
-        if response.status().is_success() {
+        let _ = response.bytes().await;
-            // ping successful, connection remains active
+        if !status.is_success() {
-            // Can optionally log, but to reduce noise, not printing here
+            eprintln!("BlockRazor ping request failed with status: {}", status);
-        } else {
-            eprintln!("BlockRazor ping request failed with status: {}", response.status());
         }
-        
         Ok(())
     }
 
+    /// Send transaction via v2 API: plain Base64 body, Content-Type: text/plain. Only required URI param: auth.
     pub async fn send_transaction(&self, trade_type: TradeType, transaction: &VersionedTransaction, wait_confirmation: bool) -> Result<()> {
         let start_time = Instant::now();
-        let (content, signature) = serialize_transaction_and_encode(transaction, UiTransactionEncoding::Base64).await?;
+        let (content, signature) = serialize_transaction_and_encode(transaction, UiTransactionEncoding::Base64)?;
 
-        // BlockRazor使用fast模式的请求格式
+        let response = self.http_client
-        let request_body = serde_json::to_string(&json!({
+            .post(&self.endpoint)
-            "transaction": content,
+            .query(&[("auth", self.auth_token.as_str())])
-            "mode": "fast"
+            .header("Content-Type", "text/plain")
-        }))?;
+            .body(content)
-
-        // BlockRazor使用apikey header
-        let response_text = self.http_client.post(&self.endpoint)
-            .body(request_body)
-            .header("Content-Type", "application/json")
-            .header("apikey", &self.auth_token)
             .send()
-            .await?
-            .text()
             .await?;
 
-        // Parse JSON response
+        let status = response.status();
-        if let Ok(response_json) = serde_json::from_str::<serde_json::Value>(&response_text) {
+        let _ = response.bytes().await;
-            if response_json.get("result").is_some() || response_json.get("signature").is_some() {
+        if status.is_success() {
+            if crate::common::sdk_log::sdk_log_enabled() {
                 println!(" [blockrazor] {} submitted: {:?}", trade_type, start_time.elapsed());
-            } else if let Some(_error) = response_json.get("error") {
-                eprintln!(" [blockrazor] {} submission failed: {:?}", trade_type, _error);
             }
         } else {
-            eprintln!(" [blockrazor] {} submission failed: {:?}", trade_type, response_text);
+            if crate::common::sdk_log::sdk_log_enabled() {
+                eprintln!(" [blockrazor] {} submission failed: status {}", trade_type, status);
+            }
+            return Err(anyhow::anyhow!("BlockRazor sendTransaction failed: {}", status));
         }
 
-        let start_time: Instant = Instant::now();
+        let start_time = Instant::now();
         match poll_transaction_confirmation(&self.rpc_client, signature, wait_confirmation).await {
             Ok(_) => (),
             Err(e) => {
-                println!(" signature: {:?}", signature);
+                if crate::common::sdk_log::sdk_log_enabled() {
-                println!(" [blockrazor] {} confirmation failed: {:?}", trade_type, start_time.elapsed());
+                    println!(" signature: {:?}", signature);
+                    println!(" [blockrazor] {} confirmation failed: {:?}", trade_type, start_time.elapsed());
+                }
                 return Err(e);
             },
         }
-        if wait_confirmation {
+        if wait_confirmation && crate::common::sdk_log::sdk_log_enabled() {
             println!(" signature: {:?}", signature);
             println!(" [blockrazor] {} confirmed: {:?}", trade_type, start_time.elapsed());
         }

src/swqos/bloxroute.rs

@@ -1,4 +1,7 @@
-use crate::swqos::common::{poll_transaction_confirmation, serialize_transaction_and_encode, FormatBase64VersionedTransaction};
+use crate::swqos::common::default_http_client_builder;
+use crate::swqos::common::poll_transaction_confirmation;
+use crate::swqos::common::serialize_transaction_and_encode;
+use crate::swqos::serialization;
 use rand::seq::IndexedRandom;
 use reqwest::Client;
 use std::{sync::Arc, time::Instant};
@@ -45,17 +48,9 @@ impl SwqosClientTrait for BloxrouteClient {
 impl BloxrouteClient {
     pub fn new(rpc_url: String, endpoint: String, auth_token: String) -> Self {
         let rpc_client = SolanaRpcClient::new(rpc_url);
-        let http_client = Client::builder()
+        let http_client = default_http_client_builder()
-            // Optimized connection pool settings for high performance
             .pool_idle_timeout(Duration::from_secs(120))
-            .pool_max_idle_per_host(256)  // Increased from 64 to 256
+            .pool_max_idle_per_host(256)
-            .tcp_keepalive(Some(Duration::from_secs(60)))  // Reduced from 1200 to 60
-            .tcp_nodelay(true)  // Disable Nagle's algorithm for lower latency
-            .http2_keep_alive_interval(Duration::from_secs(10))
-            .http2_keep_alive_timeout(Duration::from_secs(5))
-            .http2_adaptive_window(true)  // Enable adaptive flow control
-            .timeout(Duration::from_millis(3000))  // Reduced from 10s to 3s
-            .connect_timeout(Duration::from_millis(2000))  // Reduced from 5s to 2s
             .build()
             .unwrap();
         Self { rpc_client: Arc::new(rpc_client), endpoint, auth_token, http_client }
@@ -63,34 +58,34 @@ impl BloxrouteClient {
 
     pub async fn send_transaction(&self, trade_type: TradeType, transaction: &VersionedTransaction, wait_confirmation: bool) -> Result<()> {
         let start_time = Instant::now();
-        let (content, signature) = serialize_transaction_and_encode(transaction, UiTransactionEncoding::Base64).await?;
+        let (content, signature) = serialize_transaction_and_encode(transaction, UiTransactionEncoding::Base64)?;
 
-        let body = serde_json::json!({
+        // Single format! for body to avoid json! + to_string() double allocation
-            "transaction": {
+        let body = format!(
-                "content": content,
+            r#"{{"transaction":{{"content":"{}"}},"frontRunningProtection":false,"useStakedRPCs":true}}"#,
-            },
+            content
-            "frontRunningProtection": false,
+        );
-            "useStakedRPCs": true,
-        });
 
         let endpoint = format!("{}/api/v2/submit", self.endpoint);
         let response_text = self.http_client.post(&endpoint)
-            .body(body.to_string())
+            .body(body)
             .header("Content-Type", "application/json")
-            .header("Authorization", self.auth_token.clone())
+            .header("Authorization", self.auth_token.as_str())
             .send()
             .await?
             .text()
             .await?;
 
-        // 5. Use `serde_json::from_str()` to parse JSON, reducing extra wait from `.json().await?`
+        // Parse with from_str to avoid extra wait from .json().await
         if let Ok(response_json) = serde_json::from_str::<serde_json::Value>(&response_text) {
-            if response_json.get("result").is_some() {
+            if crate::common::sdk_log::sdk_log_enabled() {
-                println!(" [bloxroute] {} submitted: {:?}", trade_type, start_time.elapsed());
+                if response_json.get("result").is_some() {
-            } else if let Some(_error) = response_json.get("error") {
+                    println!(" [bloxroute] {} submitted: {:?}", trade_type, start_time.elapsed());
-                eprintln!(" [bloxroute] {} submission failed: {:?}", trade_type, _error);
+                } else if let Some(_error) = response_json.get("error") {
+                    eprintln!(" [bloxroute] {} submission failed: {:?}", trade_type, _error);
+                }
             }
-        } else {
+        } else if crate::common::sdk_log::sdk_log_enabled() {
             eprintln!(" [bloxroute] {} submission failed: {:?}", trade_type, response_text);
         }
 
@@ -98,12 +93,14 @@ impl BloxrouteClient {
         match poll_transaction_confirmation(&self.rpc_client, signature, wait_confirmation).await {
             Ok(_) => (),
             Err(e) => {
-                println!(" signature: {:?}", signature);
+                if crate::common::sdk_log::sdk_log_enabled() {
-                println!(" [bloxroute] {} confirmation failed: {:?}", trade_type, start_time.elapsed());
+                    println!(" signature: {:?}", signature);
+                    println!(" [bloxroute] {} confirmation failed: {:?}", trade_type, start_time.elapsed());
+                }
                 return Err(e);
             },
         }
-        if wait_confirmation {
+        if wait_confirmation && crate::common::sdk_log::sdk_log_enabled() {
             println!(" signature: {:?}", signature);
             println!(" [bloxroute] {} confirmed: {:?}", trade_type, start_time.elapsed());
         }
@@ -111,37 +108,37 @@ impl BloxrouteClient {
         Ok(())
     }
 
-    pub async fn send_transactions(&self, trade_type: TradeType, transactions: &Vec<VersionedTransaction>, wait_confirmation: bool) -> Result<()> {
+    pub async fn send_transactions(&self, trade_type: TradeType, transactions: &Vec<VersionedTransaction>, _wait_confirmation: bool) -> Result<()> {
         let start_time = Instant::now();
 
-        let body = serde_json::json!({
+        let contents = serialization::serialize_transactions_batch_sync(
-            "entries":  transactions
+            transactions.as_slice(),
-                .iter()
+            UiTransactionEncoding::Base64,
-                .map(|tx| {
+        )?;
-                    serde_json::json!({
+        let entries: String = contents
-                        "transaction": {
+            .iter()
-                            "content": tx.to_base64_string(),
+            .map(|c| format!(r#"{{"transaction":{{"content":"{}"}}}}"#, c))
-                        },
+            .collect::<Vec<_>>()
-                    })
+            .join(",");
-                })
+        let body = format!(r#"{{"entries":[{}]}}"#, entries);
-                .collect::<Vec<_>>(),
-        });
 
         let endpoint = format!("{}/api/v2/submit-batch", self.endpoint);
         let response_text = self.http_client.post(&endpoint)
-            .body(body.to_string())
+            .body(body)
             .header("Content-Type", "application/json")
-            .header("Authorization", self.auth_token.clone())
+            .header("Authorization", self.auth_token.as_str())
             .send()
             .await?
             .text()
             .await?;
 
-        if let Ok(response_json) = serde_json::from_str::<serde_json::Value>(&response_text) {
+        if crate::common::sdk_log::sdk_log_enabled() {
-            if response_json.get("result").is_some() {
+            if let Ok(response_json) = serde_json::from_str::<serde_json::Value>(&response_text) {
-                println!(" bloxroute {} submitted: {:?}", trade_type, start_time.elapsed());
+                if response_json.get("result").is_some() {
-            } else if let Some(_error) = response_json.get("error") {
+                    println!(" bloxroute {} submitted: {:?}", trade_type, start_time.elapsed());
-                eprintln!(" bloxroute {} submission failed: {:?}", trade_type, _error);
+                } else if let Some(_error) = response_json.get("error") {
+                    eprintln!(" bloxroute {} submission failed: {:?}", trade_type, _error);
+                }
             }
         }
 

src/swqos/common.rs

@@ -3,6 +3,7 @@ use anyhow::Result;
 use base64::engine::general_purpose::{self, STANDARD};
 use base64::Engine;
 use bincode::serialize;
+use crate::swqos::serialization;
 use reqwest::Client;
 use serde_json;
 use serde_json::json;
@@ -16,6 +17,36 @@ use std::str::FromStr;
 use std::time::{Duration, Instant};
 use tokio::time::sleep;
 
+/// Default pool idle timeout for SWQOS HTTP client (seconds). 连接池空闲超时（秒）。
+const HTTP_POOL_IDLE_TIMEOUT_SECS: u64 = 300;
+/// Max idle connections per host. 每主机最大空闲连接数。
+const HTTP_POOL_MAX_IDLE_PER_HOST: usize = 4;
+/// TCP keepalive interval (seconds). TCP 保活间隔（秒）。
+const HTTP_TCP_KEEPALIVE_SECS: u64 = 60;
+/// HTTP/2 keepalive interval (seconds). HTTP/2 保活间隔（秒）。
+const HTTP2_KEEPALIVE_INTERVAL_SECS: u64 = 10;
+/// HTTP/2 keepalive timeout (seconds). HTTP/2 保活超时（秒）。
+const HTTP2_KEEPALIVE_TIMEOUT_SECS: u64 = 5;
+/// Request timeout (milliseconds). 请求超时（毫秒）。
+const HTTP_TIMEOUT_MS: u64 = 3000;
+/// Connect timeout (milliseconds). 连接超时（毫秒）。
+const HTTP_CONNECT_TIMEOUT_MS: u64 = 2000;
+
+/// Shared HTTP client builder for SWQOS clients; call `.build().unwrap()` or override pool first. SWQOS 共用 HTTP 客户端构建器。
+pub fn default_http_client_builder() -> reqwest::ClientBuilder {
+    Client::builder()
+        .pool_idle_timeout(Duration::from_secs(HTTP_POOL_IDLE_TIMEOUT_SECS))
+        .pool_max_idle_per_host(HTTP_POOL_MAX_IDLE_PER_HOST)
+        .tcp_keepalive(Some(Duration::from_secs(HTTP_TCP_KEEPALIVE_SECS)))
+        .tcp_nodelay(true)
+        .http2_keep_alive_interval(Duration::from_secs(HTTP2_KEEPALIVE_INTERVAL_SECS))
+        .http2_keep_alive_timeout(Duration::from_secs(HTTP2_KEEPALIVE_TIMEOUT_SECS))
+        .http2_adaptive_window(true)
+        .timeout(Duration::from_millis(HTTP_TIMEOUT_MS))
+        .connect_timeout(Duration::from_millis(HTTP_CONNECT_TIMEOUT_MS))
+}
+
+/// Trade/on-chain error with code and optional instruction index. 交易/链上错误，含错误码与可选指令下标。
 #[derive(Debug, Clone)]
 pub struct TradeError {
     pub code: u32,
@@ -40,7 +71,7 @@ impl From<anyhow::Error> for TradeError {
     }
 }
 
-// 使用高性能序列化
+// High-performance serialization
 
 pub trait FormatBase64VersionedTransaction {
     fn to_base64_string(&self) -> String;
@@ -58,51 +89,64 @@ pub async fn poll_transaction_confirmation(
     txt_sig: Signature,
     wait_confirmation: bool,
 ) -> Result<Signature> {
-    // 如果不需要等待确认，立即返回签名
+    poll_any_transaction_confirmation(rpc, &[txt_sig], wait_confirmation).await
+}
+
+/// Poll multiple signatures in parallel (one RPC call per poll) and return the first one that confirms.
+/// When transactions are submitted to multiple SWQOS channels, each channel produces a different
+/// signature. Only one will land on-chain, so we must check all of them.
+pub async fn poll_any_transaction_confirmation(
+    rpc: &SolanaRpcClient,
+    signatures: &[Signature],
+    wait_confirmation: bool,
+) -> Result<Signature> {
+    if signatures.is_empty() {
+        return Err(anyhow::anyhow!("No signatures to confirm"));
+    }
+    // If no confirmation needed, return first signature immediately
     if !wait_confirmation {
-        return Ok(txt_sig);
+        return Ok(signatures[0]);
     }
 
-    let timeout: Duration = Duration::from_secs(15); // 🔧 增加到15秒，避免网络拥堵时超时
+    let timeout: Duration = Duration::from_secs(15);
     let interval: Duration = Duration::from_millis(1000);
     let start: Instant = Instant::now();
     let mut poll_count = 0u32;
+    // Track which signature landed (confirmed or failed on-chain)
+    let mut landed_sig: Option<Signature> = None;
 
     loop {
         if start.elapsed() >= timeout {
-            return Err(anyhow::anyhow!("Transaction {}'s confirmation timed out", txt_sig));
+            return Err(anyhow::anyhow!("Transaction confirmation timed out after {}s ({} signatures polled)", timeout.as_secs(), signatures.len()));
         }
 
         poll_count += 1;
 
-        let status = rpc.get_signature_statuses(&[txt_sig]).await?;
+        let status = rpc.get_signature_statuses(signatures).await?;
-        match status.value[0].clone() {
+        // Check all signatures for any that confirmed successfully
-            Some(status) => {
+        for (i, maybe_status) in status.value.iter().enumerate() {
-                if status.err.is_none()
+            if let Some(s) = maybe_status {
-                    && (status.confirmation_status
+                if s.err.is_none()
-                        == Some(TransactionConfirmationStatus::Confirmed)
+                    && (s.confirmation_status == Some(TransactionConfirmationStatus::Confirmed)
-                        || status.confirmation_status
+                        || s.confirmation_status == Some(TransactionConfirmationStatus::Finalized))
-                            == Some(TransactionConfirmationStatus::Finalized))
                 {
-                    return Ok(txt_sig);
+                    return Ok(signatures[i]);
                 }
-                // 如果 getSignatureStatuses 返回了错误，立即获取详细信息
+                // Track the first signature that landed on-chain (even if errored)
-                if status.err.is_some() {
+                if landed_sig.is_none() {
-                    // 直接跳转到获取交易详情
+                    landed_sig = Some(signatures[i]);
                 }
             }
-            None => {
-                // 交易还未上链，继续等待，不调用 getTransaction
-                sleep(interval).await;
-                continue;
-            }
         }
 
-        // 优化：只在以下情况调用 getTransaction
+        // If no signature has any status yet, keep waiting
-        // 1. getSignatureStatuses 返回了错误
+        if landed_sig.is_none() {
-        // 2. 或者已经轮询了较长时间（超过10次，即10秒）
+            sleep(interval).await;
-        let should_get_transaction = status.value[0].as_ref().map(|s| s.err.is_some()).unwrap_or(false)
+            continue;
-            || poll_count >= 10;
+        }
+
+        let landed = landed_sig.unwrap();
+        let should_get_transaction = poll_count >= 10;
 
         if !should_get_transaction {
             sleep(interval).await;
@@ -111,7 +155,7 @@ pub async fn poll_transaction_confirmation(
 
         let tx_details = match rpc
             .get_transaction_with_config(
-                &txt_sig,
+                &landed,
                 RpcTransactionConfig {
                     encoding: Some(UiTransactionEncoding::JsonParsed),
                     max_supported_transaction_version: Some(0),
@@ -122,7 +166,7 @@ pub async fn poll_transaction_confirmation(
         {
             Ok(details) => details,
             Err(_) => {
-                // 交易可能还未上链，继续等待
+                // Tx may not be on chain yet, keep waiting
                 sleep(interval).await;
                 continue;
             }
@@ -134,9 +178,9 @@ pub async fn poll_transaction_confirmation(
         } else {
             let meta = meta.unwrap();
             if meta.err.is_none() {
-                return Ok(txt_sig);
+                return Ok(landed);
             } else {
-                // 从 log_messages 中提取错误信息
+                // Extract error message from log_messages
                 let mut error_msg = String::new();
                 if let solana_transaction_status::option_serializer::OptionSerializer::Some(logs) =
                     &meta.log_messages
@@ -162,12 +206,12 @@ pub async fn poll_transaction_confirmation(
                 let tx_err: TransactionError =
                     serde_json::from_value(serde_json::to_value(&ui_err)?)?;
                 
-                // 直接使用Solana原生的InstructionError中的错误码
+                // Use Solana InstructionError codes directly
                 let mut code = 0u32;
                 let mut index = None;
                 match &tx_err {
                     TransactionError::InstructionError(i, i_error) => {
-                        // 直接匹配所有InstructionError类型，Custom也是其中之一
+                        // Match all InstructionError variants including Custom
                         code = match i_error {
                             solana_sdk::instruction::InstructionError::Custom(c) => *c,
                             solana_sdk::instruction::InstructionError::GenericError => 1,
@@ -180,7 +224,7 @@ pub async fn poll_transaction_confirmation(
                             solana_sdk::instruction::InstructionError::MissingRequiredSignature => 8,
                             solana_sdk::instruction::InstructionError::AccountAlreadyInitialized => 9,
                             solana_sdk::instruction::InstructionError::UninitializedAccount => 10,
-                            _ => 999, // 其他未知错误
+                            _ => 999, // Other unknown errors
                         };
                         index = Some(*i);
                     }
@@ -198,11 +242,11 @@ pub async fn poll_transaction_confirmation(
 }
 
 pub async fn send_nb_transaction(client: Client, endpoint: &str, auth_token: &str, transaction: &Transaction) -> Result<Signature, anyhow::Error> {
-    // 序列化交易
+    // Serialize transaction
     let serialized = bincode::serialize(transaction)
         .map_err(|e| anyhow::anyhow!("Transaction serialization failed: {}", e))?;
     
-    // Base64编码
+    // Base64 encode
     let encoded = STANDARD.encode(serialized);
 
     let request_data = json!({
@@ -250,18 +294,12 @@ pub async fn serialize_and_encode(
     Ok(serialized)
 }
 
-pub async fn serialize_transaction_and_encode(
+/// Sync serialize and encode; uses buffer pool when possible for lower allocs and latency.
+pub fn serialize_transaction_and_encode(
     transaction: &impl SerializableTransaction,
     encoding: UiTransactionEncoding,
 ) -> Result<(String, Signature)> {
-    let signature = transaction.get_signature();
+    serialization::serialize_transaction_sync(transaction, encoding)
-    let serialized_tx = serialize(transaction)?;
-    let serialized = match encoding {
-        UiTransactionEncoding::Base58 => bs58::encode(serialized_tx).into_string(),
-        UiTransactionEncoding::Base64 => STANDARD.encode(serialized_tx),
-        _ => return Err(anyhow::anyhow!("Unsupported encoding")),
-    };
-    Ok((serialized, *signature))
 }
 
 pub async fn serialize_smart_transaction_and_encode(

src/swqos/flashblock.rs

@@ -1,10 +1,9 @@
-use crate::swqos::common::{poll_transaction_confirmation, serialize_transaction_and_encode};
+use crate::swqos::common::{default_http_client_builder, poll_transaction_confirmation, serialize_transaction_and_encode};
 use rand::seq::IndexedRandom;
 use reqwest::Client;
 use serde_json::json;
 use std::{sync::Arc, time::Instant};
 
-use std::time::Duration;
 use solana_transaction_status::UiTransactionEncoding;
 
 use anyhow::Result;
@@ -46,25 +45,13 @@ impl SwqosClientTrait for FlashBlockClient {
 impl FlashBlockClient {
     pub fn new(rpc_url: String, endpoint: String, auth_token: String) -> Self {
         let rpc_client = SolanaRpcClient::new(rpc_url);
-        let http_client = Client::builder()
+        let http_client = default_http_client_builder().build().unwrap();
-            // Optimized connection pool settings for high performance
-            .pool_idle_timeout(Duration::from_secs(120))
-            .pool_max_idle_per_host(256)  // Increased from 64 to 256
-            .tcp_keepalive(Some(Duration::from_secs(60)))  // Reduced from 1200 to 60
-            .tcp_nodelay(true)  // Disable Nagle's algorithm for lower latency
-            .http2_keep_alive_interval(Duration::from_secs(10))
-            .http2_keep_alive_timeout(Duration::from_secs(5))
-            .http2_adaptive_window(true)  // Enable adaptive flow control
-            .timeout(Duration::from_millis(3000))  // Reduced from 10s to 3s
-            .connect_timeout(Duration::from_millis(2000))  // Reduced from 5s to 2s
-            .build()
-            .unwrap();
         Self { rpc_client: Arc::new(rpc_client), endpoint, auth_token, http_client }
     }
 
     pub async fn send_transaction(&self, trade_type: TradeType, transaction: &VersionedTransaction, wait_confirmation: bool) -> Result<()> {
         let start_time = Instant::now();
-        let (content, signature) = serialize_transaction_and_encode(transaction, UiTransactionEncoding::Base64).await?;
+        let (content, signature) = serialize_transaction_and_encode(transaction, UiTransactionEncoding::Base64)?;
 
         // FlashBlock API format
         let request_body = serde_json::to_string(&json!({

src/swqos/jito.rs

@@ -1,11 +1,10 @@
 
-use crate::swqos::common::{poll_transaction_confirmation, serialize_transaction_and_encode, FormatBase64VersionedTransaction};
+use crate::swqos::common::{default_http_client_builder, poll_transaction_confirmation, serialize_transaction_and_encode, FormatBase64VersionedTransaction};
 use rand::seq::IndexedRandom;
 use reqwest::Client;
 use serde_json::json;
 use std::{sync::Arc, time::Instant};
 
-use std::time::Duration;
 use solana_transaction_status::UiTransactionEncoding;
 
 use anyhow::Result;
@@ -49,25 +48,13 @@ impl SwqosClientTrait for JitoClient {
 impl JitoClient {
     pub fn new(rpc_url: String, endpoint: String, auth_token: String) -> Self {
         let rpc_client = SolanaRpcClient::new(rpc_url);
-        let http_client = Client::builder()
+        let http_client = default_http_client_builder().build().unwrap();
-            // Optimized connection pool settings for high performance
-            .pool_idle_timeout(Duration::from_secs(120))
-            .pool_max_idle_per_host(256)  // Increased from 64 to 256
-            .tcp_keepalive(Some(Duration::from_secs(60)))  // Reduced from 1200 to 60
-            .tcp_nodelay(true)  // Disable Nagle's algorithm for lower latency
-            .http2_keep_alive_interval(Duration::from_secs(10))
-            .http2_keep_alive_timeout(Duration::from_secs(5))
-            .http2_adaptive_window(true)  // Enable adaptive flow control
-            .timeout(Duration::from_millis(3000))  // Reduced from 10s to 3s
-            .connect_timeout(Duration::from_millis(2000))  // Reduced from 5s to 2s
-            .build()
-            .unwrap();
         Self { rpc_client: Arc::new(rpc_client), endpoint, auth_token, http_client }
     }
 
     pub async fn send_transaction_impl(&self, trade_type: TradeType, transaction: &VersionedTransaction, wait_confirmation: bool) -> Result<()> {
         let start_time = Instant::now();
-        let (content, signature) = serialize_transaction_and_encode(transaction, UiTransactionEncoding::Base64).await?;
+        let (content, signature) = serialize_transaction_and_encode(transaction, UiTransactionEncoding::Base64)?;
 
         let request_body = serde_json::to_string(&json!({
             "id": 1,

src/swqos/lightspeed.rs

@@ -1,10 +1,9 @@
-use crate::swqos::common::{poll_transaction_confirmation, serialize_transaction_and_encode};
+use crate::swqos::common::{default_http_client_builder, poll_transaction_confirmation, serialize_transaction_and_encode};
 use rand::seq::IndexedRandom;
 use reqwest::Client;
 use serde_json::json;
 use std::{sync::Arc, time::Instant};
 
-use std::time::Duration;
 use solana_transaction_status::UiTransactionEncoding;
 
 use anyhow::Result;
@@ -47,25 +46,13 @@ impl LightspeedClient {
         // Lightspeed endpoint should already include /lightspeed path
         // Format: https://<tier>.rpc.solanavibestation.com/lightspeed?api_key=<key>
         let rpc_client = SolanaRpcClient::new(rpc_url);
-        let http_client = Client::builder()
+        let http_client = default_http_client_builder().build().unwrap();
-            // Optimized connection pool settings for high performance
-            .pool_idle_timeout(Duration::from_secs(120))
-            .pool_max_idle_per_host(256)
-            .tcp_keepalive(Some(Duration::from_secs(60)))
-            .tcp_nodelay(true)  // Disable Nagle's algorithm for lower latency
-            .http2_keep_alive_interval(Duration::from_secs(10))
-            .http2_keep_alive_timeout(Duration::from_secs(5))
-            .http2_adaptive_window(true)  // Enable adaptive flow control
-            .timeout(Duration::from_millis(3000))
-            .connect_timeout(Duration::from_millis(2000))
-            .build()
-            .unwrap();
         Self { rpc_client: Arc::new(rpc_client), endpoint, auth_token, http_client }
     }
 
     pub async fn send_transaction(&self, trade_type: TradeType, transaction: &VersionedTransaction, wait_confirmation: bool) -> Result<()> {
         let start_time = Instant::now();
-        let (content, signature) = serialize_transaction_and_encode(transaction, UiTransactionEncoding::Base64).await?;
+        let (content, signature) = serialize_transaction_and_encode(transaction, UiTransactionEncoding::Base64)?;
 
         // Lightspeed uses standard Solana JSON-RPC format for sendTransaction
         let request_body = serde_json::to_string(&json!({

src/swqos/nextblock.rs

@@ -1,10 +1,9 @@
-use crate::swqos::common::{poll_transaction_confirmation, serialize_transaction_and_encode};
+use crate::swqos::common::{default_http_client_builder, poll_transaction_confirmation, serialize_transaction_and_encode};
 use rand::seq::IndexedRandom;
 use reqwest::Client;
 use serde_json::json;
 use std::{sync::Arc, time::Instant};
 
-use std::time::Duration;
 use solana_transaction_status::UiTransactionEncoding;
 
 use anyhow::Result;
@@ -51,25 +50,13 @@ impl NextBlockClient {
             format!("{}/api/v2/submit", endpoint.trim_end_matches('/'))
         };
         let rpc_client = SolanaRpcClient::new(rpc_url);
-        let http_client = Client::builder()
+        let http_client = default_http_client_builder().build().unwrap();
-            // Optimized connection pool settings for high performance
-            .pool_idle_timeout(Duration::from_secs(120))
-            .pool_max_idle_per_host(256)  // Increased from 64 to 256
-            .tcp_keepalive(Some(Duration::from_secs(60)))  // Reduced from 1200 to 60
-            .tcp_nodelay(true)  // Disable Nagle's algorithm for lower latency
-            .http2_keep_alive_interval(Duration::from_secs(10))
-            .http2_keep_alive_timeout(Duration::from_secs(5))
-            .http2_adaptive_window(true)  // Enable adaptive flow control
-            .timeout(Duration::from_millis(3000))  // Reduced from 10s to 3s
-            .connect_timeout(Duration::from_millis(2000))  // Reduced from 5s to 2s
-            .build()
-            .unwrap();
         Self { rpc_client: Arc::new(rpc_client), endpoint, auth_token, http_client }
     }
 
     pub async fn send_transaction(&self, trade_type: TradeType, transaction: &VersionedTransaction, wait_confirmation: bool) -> Result<()> {
         let start_time = Instant::now();
-        let (content, signature) = serialize_transaction_and_encode(transaction, UiTransactionEncoding::Base64).await?;
+        let (content, signature) = serialize_transaction_and_encode(transaction, UiTransactionEncoding::Base64)?;
 
         let request_body = serde_json::to_string(&json!({
             "transaction": {

src/swqos/node1.rs

@@ -1,4 +1,4 @@
-use crate::swqos::common::{poll_transaction_confirmation, serialize_transaction_and_encode};
+use crate::swqos::common::{default_http_client_builder, poll_transaction_confirmation, serialize_transaction_and_encode};
 use rand::seq::IndexedRandom;
 use reqwest::Client;
 use serde_json::json;
@@ -50,19 +50,7 @@ impl SwqosClientTrait for Node1Client {
 impl Node1Client {
     pub fn new(rpc_url: String, endpoint: String, auth_token: String) -> Self {
         let rpc_client = SolanaRpcClient::new(rpc_url);
-        let http_client = Client::builder()
+        let http_client = default_http_client_builder().build().unwrap();
-            // Optimized connection pool settings for high performance
-            .pool_idle_timeout(Duration::from_secs(120))
-            .pool_max_idle_per_host(256)  // Increased from 64 to 256
-            .tcp_keepalive(Some(Duration::from_secs(60)))  // Reduced from 1200 to 60
-            .tcp_nodelay(true)  // Disable Nagle's algorithm for lower latency
-            .http2_keep_alive_interval(Duration::from_secs(10))
-            .http2_keep_alive_timeout(Duration::from_secs(5))
-            .http2_adaptive_window(true)  // Enable adaptive flow control
-            .timeout(Duration::from_millis(3000))  // Reduced from 10s to 3s
-            .connect_timeout(Duration::from_millis(2000))  // Reduced from 5s to 2s
-            .build()
-            .unwrap();
         
         let client = Self { 
             rpc_client: Arc::new(rpc_client), 
@@ -90,18 +78,22 @@ impl Node1Client {
         let stop_ping = self.stop_ping.clone();
         
         let handle = tokio::spawn(async move {
-            let mut interval = tokio::time::interval(Duration::from_secs(60)); // Ping every 60 seconds
+            // Immediate first ping to warm connection and reduce first-submit cold start latency
-            
+            if let Err(e) = Self::send_ping_request(&http_client, &endpoint, &auth_token).await {
+                if crate::common::sdk_log::sdk_log_enabled() {
+                    eprintln!("Node1 ping request failed: {}", e);
+                }
+            }
+            let mut interval = tokio::time::interval(Duration::from_secs(30));
             loop {
                 interval.tick().await;
-                
                 if stop_ping.load(Ordering::Relaxed) {
                     break;
                 }
-                
-                // Send ping request
                 if let Err(e) = Self::send_ping_request(&http_client, &endpoint, &auth_token).await {
-                    eprintln!("Node1 ping request failed: {}", e);
+                    if crate::common::sdk_log::sdk_log_enabled() {
+                        eprintln!("Node1 ping request failed: {}", e);
+                    }
                 }
             }
         });
@@ -125,24 +117,22 @@ impl Node1Client {
             format!("{}/ping", endpoint)
         };
 
-        // Send GET request to /ping endpoint (no api-key required)
+        // Short timeout for ping; consume body so connection is returned to pool for reuse by submit
         let response = http_client.get(&ping_url)
+            .timeout(Duration::from_millis(1500))
             .send()
             .await?;
-        
+        let status = response.status();
-        if response.status().is_success() {
+        let _ = response.bytes().await;
-            // ping successful, connection remains active
+        if !status.is_success() && crate::common::sdk_log::sdk_log_enabled() {
-            // Can optionally log, but to reduce noise, not printing here
+            eprintln!("Node1 ping request returned non-success status: {}", status);
-        } else {
-            eprintln!("Node1 ping request returned non-success status: {}", response.status());
         }
-        
         Ok(())
     }
 
     pub async fn send_transaction(&self, trade_type: TradeType, transaction: &VersionedTransaction, wait_confirmation: bool) -> Result<()> {
         let start_time = Instant::now();
-        let (content, signature) = serialize_transaction_and_encode(transaction, UiTransactionEncoding::Base64).await?;
+        let (content, signature) = serialize_transaction_and_encode(transaction, UiTransactionEncoding::Base64)?;
 
         let request_body = serde_json::to_string(&json!({
             "jsonrpc": "2.0",
@@ -166,12 +156,14 @@ impl Node1Client {
 
         // Parse JSON response
         if let Ok(response_json) = serde_json::from_str::<serde_json::Value>(&response_text) {
-            if response_json.get("result").is_some() {
+            if crate::common::sdk_log::sdk_log_enabled() {
-                println!(" [node1] {} submitted: {:?}", trade_type, start_time.elapsed());
+                if response_json.get("result").is_some() {
-            } else if let Some(_error) = response_json.get("error") {
+                    println!(" [node1] {} submitted: {:?}", trade_type, start_time.elapsed());
-                eprintln!(" [node1] {} submission failed: {:?}", trade_type, _error);
+                } else if let Some(_error) = response_json.get("error") {
+                    eprintln!(" [node1] {} submission failed: {:?}", trade_type, _error);
+                }
             }
-        } else {
+        } else if crate::common::sdk_log::sdk_log_enabled() {
             eprintln!(" [node1] {} submission failed: {:?}", trade_type, response_text);
         }
 
@@ -179,12 +171,14 @@ impl Node1Client {
         match poll_transaction_confirmation(&self.rpc_client, signature, wait_confirmation).await {
             Ok(_) => (),
             Err(e) => {
-                println!(" signature: {:?}", signature);
+                if crate::common::sdk_log::sdk_log_enabled() {
-                println!(" [node1] {} confirmation failed: {:?}", trade_type, start_time.elapsed());
+                    println!(" signature: {:?}", signature);
+                    println!(" [node1] {} confirmation failed: {:?}", trade_type, start_time.elapsed());
+                }
                 return Err(e);
             },
         }
-        if wait_confirmation {
+        if wait_confirmation && crate::common::sdk_log::sdk_log_enabled() {
             println!(" signature: {:?}", signature);
             println!(" [node1] {} confirmed: {:?}", trade_type, start_time.elapsed());
         }

src/swqos/serialization.rs

@@ -1,4 +1,4 @@
-//! 交易序列化模块
+//! Transaction serialization module.
 
 use anyhow::Result;
 use base64::Engine;
@@ -14,7 +14,7 @@ use crate::perf::{
     compiler_optimization::CompileTimeOptimizedEventProcessor,
 };
 
-/// 零分配序列化器 - 使用缓冲池避免运行时分配
+/// Zero-allocation serializer using a buffer pool to avoid runtime allocation.
 pub struct ZeroAllocSerializer {
     buffer_pool: Arc<ArrayQueue<Vec<u8>>>,
     buffer_size: usize,
@@ -24,7 +24,7 @@ impl ZeroAllocSerializer {
     pub fn new(pool_size: usize, buffer_size: usize) -> Self {
         let pool = ArrayQueue::new(pool_size);
 
-        // 预分配缓冲区
+        // Pre-allocate buffers
         for _ in 0..pool_size {
             let mut buffer = Vec::with_capacity(buffer_size);
             buffer.resize(buffer_size, 0);
@@ -38,14 +38,14 @@ impl ZeroAllocSerializer {
     }
 
     pub fn serialize_zero_alloc<T: serde::Serialize>(&self, data: &T, _label: &str) -> Result<Vec<u8>> {
-        // 尝试从池中获取缓冲区
+        // Try to get a buffer from the pool
         let mut buffer = self.buffer_pool.pop().unwrap_or_else(|| {
             let mut buf = Vec::with_capacity(self.buffer_size);
             buf.resize(self.buffer_size, 0);
             buf
         });
 
-        // 序列化到缓冲区
+        // Serialize into buffer
         let serialized = bincode::serialize(data)?;
         buffer.clear();
         buffer.extend_from_slice(&serialized);
@@ -54,11 +54,11 @@ impl ZeroAllocSerializer {
     }
 
     pub fn return_buffer(&self, buffer: Vec<u8>) {
-        // 归还缓冲区到池中
+        // Return buffer to the pool
         let _ = self.buffer_pool.push(buffer);
     }
 
-    /// 获取池统计信息
+    /// Get pool statistics.
     pub fn get_pool_stats(&self) -> (usize, usize) {
         let available = self.buffer_pool.len();
         let capacity = self.buffer_pool.capacity();
@@ -66,32 +66,32 @@ impl ZeroAllocSerializer {
     }
 }
 
-/// 全局序列化器实例
+/// Global serializer instance.
 static SERIALIZER: Lazy<Arc<ZeroAllocSerializer>> = Lazy::new(|| {
     Arc::new(ZeroAllocSerializer::new(
-        10_000,      // 池大小
+        10_000,      // Pool size
-        256 * 1024,  // 缓冲区大小: 256KB
+        256 * 1024,  // Buffer size: 256KB
     ))
 });
 
-/// 🚀 编译时优化的事件处理器 (零运行时开销)
+/// Compile-time optimized event processor (zero runtime cost).
 static COMPILE_TIME_PROCESSOR: CompileTimeOptimizedEventProcessor =
     CompileTimeOptimizedEventProcessor::new();
 
-/// Base64 编码器
+/// Base64 encoder.
 pub struct Base64Encoder;
 
 impl Base64Encoder {
     #[inline(always)]
     pub fn encode(data: &[u8]) -> String {
-        // 使用编译时优化的哈希进行快速路由
+        // Use compile-time optimized hash for fast routing
         let _route = if !data.is_empty() {
             COMPILE_TIME_PROCESSOR.route_event_zero_cost(data[0])
         } else {
             0
         };
 
-        // 使用 SIMD 加速的 Base64 编码
+        // Use SIMD-accelerated Base64 encoding
         SIMDSerializer::encode_base64_simd(data)
     }
 
@@ -105,32 +105,98 @@ impl Base64Encoder {
     }
 }
 
-/// 交易序列化
+/// Guard that returns the serialization buffer to the pool on drop.
+pub struct PooledTxBufGuard(pub Vec<u8>);
+
+impl std::ops::Deref for PooledTxBufGuard {
+    type Target = [u8];
+    fn deref(&self) -> &[u8] {
+        &self.0
+    }
+}
+
+impl Drop for PooledTxBufGuard {
+    fn drop(&mut self) {
+        if !self.0.is_empty() {
+            SERIALIZER.return_buffer(std::mem::take(&mut self.0));
+        }
+    }
+}
+
+/// Serialize transaction to bincode bytes using buffer pool. The returned guard returns the buffer
+/// to the pool when dropped; use `&*guard` or `guard.as_ref()` for `&[u8]`.
+pub fn serialize_transaction_bincode_sync(
+    transaction: &impl SerializableTransaction,
+) -> Result<(PooledTxBufGuard, Signature)> {
+    let signature = transaction.get_signature();
+    let serialized_tx = SERIALIZER.serialize_zero_alloc(transaction, "transaction")?;
+    Ok((PooledTxBufGuard(serialized_tx), *signature))
+}
+
+/// Return a buffer to the pool (for manual use when not using `PooledTxBufGuard`).
+pub fn return_serialization_buffer(buffer: Vec<u8>) {
+    SERIALIZER.return_buffer(buffer);
+}
+
+/// Sync serialize + encode using buffer pool; use in hot path to reduce allocs.
+/// Base64 path uses SIMD-accelerated encoding.
+pub fn serialize_transaction_sync(
+    transaction: &impl SerializableTransaction,
+    encoding: UiTransactionEncoding,
+) -> Result<(String, Signature)> {
+    let signature = transaction.get_signature();
+    let serialized_tx = SERIALIZER.serialize_zero_alloc(transaction, "transaction")?;
+    let serialized = match encoding {
+        UiTransactionEncoding::Base58 => bs58::encode(&serialized_tx).into_string(),
+        UiTransactionEncoding::Base64 => SIMDSerializer::encode_base64_simd(&serialized_tx),
+        _ => return Err(anyhow::anyhow!("Unsupported encoding")),
+    };
+    SERIALIZER.return_buffer(serialized_tx);
+    Ok((serialized, *signature))
+}
+
+/// Serialize a transaction (async; no I/O, kept for API compatibility).
 pub async fn serialize_transaction(
     transaction: &impl SerializableTransaction,
     encoding: UiTransactionEncoding,
 ) -> Result<(String, Signature)> {
     let signature = transaction.get_signature();
 
-    // 使用零分配序列化
+    // Use zero-allocation serialization
     let serialized_tx = SERIALIZER.serialize_zero_alloc(transaction, "transaction")?;
 
     let serialized = match encoding {
         UiTransactionEncoding::Base58 => bs58::encode(&serialized_tx).into_string(),
-        UiTransactionEncoding::Base64 => {
+        UiTransactionEncoding::Base64 => SIMDSerializer::encode_base64_simd(&serialized_tx),
-            // 使用 SIMD 优化的 Base64 编码
-            STANDARD.encode(&serialized_tx)
-        }
         _ => return Err(anyhow::anyhow!("Unsupported encoding")),
     };
 
-    // 立即归还缓冲区到池中
+    // Return buffer to pool immediately
     SERIALIZER.return_buffer(serialized_tx);
 
     Ok((serialized, *signature))
 }
 
-/// 批量交易序列化
+/// Sync batch serialize + encode using buffer pool.
+pub fn serialize_transactions_batch_sync(
+    transactions: &[impl SerializableTransaction],
+    encoding: UiTransactionEncoding,
+) -> Result<Vec<String>> {
+    let mut results = Vec::with_capacity(transactions.len());
+    for tx in transactions {
+        let serialized_tx = SERIALIZER.serialize_zero_alloc(tx, "transaction")?;
+        let encoded = match encoding {
+            UiTransactionEncoding::Base58 => bs58::encode(&serialized_tx).into_string(),
+            UiTransactionEncoding::Base64 => SIMDSerializer::encode_base64_simd(&serialized_tx),
+            _ => return Err(anyhow::anyhow!("Unsupported encoding")),
+        };
+        SERIALIZER.return_buffer(serialized_tx);
+        results.push(encoded);
+    }
+    Ok(results)
+}
+
+/// Batch transaction serialization.
 pub async fn serialize_transactions_batch(
     transactions: &[impl SerializableTransaction],
     encoding: UiTransactionEncoding,
@@ -142,7 +208,7 @@ pub async fn serialize_transactions_batch(
 
         let encoded = match encoding {
             UiTransactionEncoding::Base58 => bs58::encode(&serialized_tx).into_string(),
-            UiTransactionEncoding::Base64 => STANDARD.encode(&serialized_tx),
+            UiTransactionEncoding::Base64 => SIMDSerializer::encode_base64_simd(&serialized_tx),
             _ => return Err(anyhow::anyhow!("Unsupported encoding")),
         };
 
@@ -153,7 +219,7 @@ pub async fn serialize_transactions_batch(
     Ok(results)
 }
 
-/// 获取序列化器统计信息
+/// Get serializer statistics.
 pub fn get_serializer_stats() -> (usize, usize) {
     SERIALIZER.get_pool_stats()
 }
@@ -168,7 +234,7 @@ mod tests {
         let encoded = Base64Encoder::encode(data);
         assert!(!encoded.is_empty());
 
-        // 验证可以正确解码
+        // Verify it decodes correctly
         let decoded = STANDARD.decode(&encoded).unwrap();
         assert_eq!(&decoded[..data.len()], data);
     }

src/swqos/speedlanding.rs

@@ -6,7 +6,6 @@ use quinn::{
     TransportConfig,
 };
 use rand::seq::IndexedRandom as _;
-use solana_rpc_client::rpc_client::SerializableTransaction;
 use solana_sdk::{signature::Keypair, transaction::VersionedTransaction};
 use solana_tls_utils::{new_dummy_x509_certificate, SkipServerVerification};
 use std::time::Instant;
@@ -19,6 +18,7 @@ use tokio::sync::Mutex;
 
 use crate::common::SolanaRpcClient;
 use crate::swqos::common::poll_transaction_confirmation;
+use crate::swqos::serialization::serialize_transaction_bincode_sync;
 use crate::swqos::SwqosClientTrait;
 use crate::{
     constants::swqos::SPEEDLANDING_TIP_ACCOUNTS,
@@ -105,27 +105,32 @@ impl SwqosClientTrait for SpeedlandingClient {
         wait_confirmation: bool,
     ) -> Result<()> {
         let start_time = Instant::now();
-        let signature = transaction.get_signature();
+        let (buf_guard, signature) = serialize_transaction_bincode_sync(transaction)?;
-        let serialized_tx = bincode::serialize(transaction)?;
         let connection = self.connection.load_full();
-        if Self::try_send_bytes(&connection, &serialized_tx).await.is_err() {
+        if Self::try_send_bytes(&connection, &*buf_guard).await.is_err() {
-            eprintln!(" [speedlanding] {} submission failed, reconnecting", trade_type);
+            if crate::common::sdk_log::sdk_log_enabled() {
+                eprintln!(" [speedlanding] {} submission failed, reconnecting", trade_type);
+            }
             self.reconnect().await?;
             let connection = self.connection.load_full();
-            if let Err(e) = Self::try_send_bytes(&connection, &serialized_tx).await {
+            if let Err(e) = Self::try_send_bytes(&connection, &*buf_guard).await {
-                eprintln!(" [speedlanding] {} submission failed: {:?}", trade_type, e);
+                if crate::common::sdk_log::sdk_log_enabled() {
+                    eprintln!(" [speedlanding] {} submission failed: {:?}", trade_type, e);
+                }
                 return Err(e.into());
             }
         }
-        match poll_transaction_confirmation(&self.rpc_client, *signature, wait_confirmation).await {
+        match poll_transaction_confirmation(&self.rpc_client, signature, wait_confirmation).await {
             Ok(_) => (),
             Err(e) => {
-                println!(" signature: {:?}", signature);
+                if crate::common::sdk_log::sdk_log_enabled() {
-                println!(" [speedlanding] {} confirmation failed: {:?}", trade_type, start_time.elapsed());
+                    println!(" signature: {:?}", signature);
+                    println!(" [speedlanding] {} confirmation failed: {:?}", trade_type, start_time.elapsed());
+                }
                 return Err(e);
             }
         }
-        if wait_confirmation {
+        if wait_confirmation && crate::common::sdk_log::sdk_log_enabled() {
             println!(" signature: {:?}", signature);
             println!(" [speedlanding] {} confirmed: {:?}", trade_type, start_time.elapsed());
         }

src/swqos/stellium.rs

@@ -1,4 +1,4 @@
-use crate::swqos::common::{poll_transaction_confirmation, serialize_transaction_and_encode};
+use crate::swqos::common::{default_http_client_builder, poll_transaction_confirmation, serialize_transaction_and_encode};
 use rand::seq::IndexedRandom;
 use reqwest::Client;
 use serde_json::json;
@@ -48,19 +48,7 @@ impl SwqosClientTrait for StelliumClient {
 impl StelliumClient {
     pub fn new(rpc_url: String, endpoint: String, auth_token: String) -> Self {
         let rpc_client = SolanaRpcClient::new(rpc_url);
-        let http_client = Client::builder()
+        let http_client = default_http_client_builder().build().unwrap();
-            // Optimized connection pool settings for high performance
-            .pool_idle_timeout(Duration::from_secs(120))
-            .pool_max_idle_per_host(256)  // Increased from 64 to 256
-            .tcp_keepalive(Some(Duration::from_secs(60)))  // Reduced from 1200 to 60
-            .tcp_nodelay(true)  // Disable Nagle's algorithm for lower latency
-            .http2_keep_alive_interval(Duration::from_secs(10))
-            .http2_keep_alive_timeout(Duration::from_secs(5))
-            .http2_adaptive_window(true)  // Enable adaptive flow control
-            .timeout(Duration::from_millis(3000))  // Reduced from 10s to 3s
-            .connect_timeout(Duration::from_millis(2000))  // Reduced from 5s to 2s
-            .build()
-            .unwrap();
 
         let keep_alive_running = Arc::new(AtomicBool::new(true));
 
@@ -89,25 +77,34 @@ impl StelliumClient {
         let stop_ping = self.keep_alive_running.clone();
 
         tokio::spawn(async move {
-            let mut interval = tokio::time::interval(Duration::from_secs(60)); // Ping every 60 seconds
+            // Immediate first ping to warm connection and reduce first-submit cold start latency
-
+            let url = format!("{}/{}", endpoint, auth_token);
+            if let Ok(resp) = http_client.get(&url).timeout(Duration::from_millis(1500)).send().await {
+                let status = resp.status();
+                let _ = resp.bytes().await;
+                if !status.is_success() && crate::common::sdk_log::sdk_log_enabled() {
+                    eprintln!(" [Stellium] Ping failed with status: {}", status);
+                }
+            }
+            let mut interval = tokio::time::interval(Duration::from_secs(30));
             loop {
                 interval.tick().await;
-
                 if stop_ping.load(Ordering::Relaxed) {
                     break;
                 }
-
-                // Send ping request
                 let url = format!("{}/{}", endpoint, auth_token);
-                match http_client.get(&url).send().await {
+                match http_client.get(&url).timeout(Duration::from_millis(1500)).send().await {
                     Ok(response) => {
-                        if !response.status().is_success() {
+                        let status = response.status();
-                            eprintln!(" [Stellium] Ping failed with status: {}", response.status());
+                        let _ = response.bytes().await;
+                        if !status.is_success() && crate::common::sdk_log::sdk_log_enabled() {
+                            eprintln!(" [Stellium] Ping failed with status: {}", status);
                         }
                     }
                     Err(e) => {
-                        eprintln!(" [Stellium] Ping request error: {:?}", e);
+                        if crate::common::sdk_log::sdk_log_enabled() {
+                            eprintln!(" [Stellium] Ping request error: {:?}", e);
+                        }
                     }
                 }
             }
@@ -116,7 +113,7 @@ impl StelliumClient {
 
     pub async fn send_transaction(&self, trade_type: TradeType, transaction: &VersionedTransaction, wait_confirmation: bool) -> Result<()> {
         let start_time = Instant::now();
-        let (content, signature) = serialize_transaction_and_encode(transaction, UiTransactionEncoding::Base64).await?;
+        let (content, signature) = serialize_transaction_and_encode(transaction, UiTransactionEncoding::Base64)?;
 
         // Stellium uses standard Solana sendTransaction format
         let request_body = serde_json::to_string(&json!({
@@ -145,12 +142,14 @@ impl StelliumClient {
 
         // Parse response
         if let Ok(response_json) = serde_json::from_str::<serde_json::Value>(&response_text) {
-            if response_json.get("result").is_some() {
+            if crate::common::sdk_log::sdk_log_enabled() {
-                println!(" [Stellium] {} submitted: {:?}", trade_type, start_time.elapsed());
+                if response_json.get("result").is_some() {
-            } else if let Some(_error) = response_json.get("error") {
+                    println!(" [Stellium] {} submitted: {:?}", trade_type, start_time.elapsed());
-                eprintln!(" [Stellium] {} submission failed: {:?}", trade_type, _error);
+                } else if let Some(_error) = response_json.get("error") {
+                    eprintln!(" [Stellium] {} submission failed: {:?}", trade_type, _error);
+                }
             }
-        } else {
+        } else if crate::common::sdk_log::sdk_log_enabled() {
             eprintln!(" [Stellium] {} submission failed: {:?}", trade_type, response_text);
         }
 
@@ -158,12 +157,14 @@ impl StelliumClient {
         match poll_transaction_confirmation(&self.rpc_client, signature, wait_confirmation).await {
             Ok(_) => (),
             Err(e) => {
-                println!(" signature: {:?}", signature);
+                if crate::common::sdk_log::sdk_log_enabled() {
-                println!(" [Stellium] {} confirmation failed: {:?}", trade_type, start_time.elapsed());
+                    println!(" signature: {:?}", signature);
+                    println!(" [Stellium] {} confirmation failed: {:?}", trade_type, start_time.elapsed());
+                }
                 return Err(e);
             },
         }
-        if wait_confirmation {
+        if wait_confirmation && crate::common::sdk_log::sdk_log_enabled() {
             println!(" signature: {:?}", signature);
             println!(" [Stellium] {} confirmed: {:?}", trade_type, start_time.elapsed());
         }

src/swqos/temporal.rs

@@ -1,5 +1,5 @@
 
-use crate::swqos::common::{poll_transaction_confirmation, serialize_transaction_and_encode};
+use crate::swqos::common::{default_http_client_builder, poll_transaction_confirmation, serialize_transaction_and_encode};
 use rand::seq::IndexedRandom;
 use reqwest::Client;
 use serde_json::json;
@@ -76,19 +76,7 @@ impl SwqosClientTrait for TemporalClient {
 impl TemporalClient {
     pub fn new(rpc_url: String, endpoint: String, auth_token: String) -> Self {
         let rpc_client = SolanaRpcClient::new(rpc_url);
-        let http_client = Client::builder()
+        let http_client = default_http_client_builder().build().unwrap();
-            // Optimized connection pool settings for high performance
-            .pool_idle_timeout(Duration::from_secs(120))
-            .pool_max_idle_per_host(256)  // Increased from 64 to 256
-            .tcp_keepalive(Some(Duration::from_secs(60)))  // Reduced from 1200 to 60
-            .tcp_nodelay(true)  // Disable Nagle's algorithm for lower latency
-            .http2_keep_alive_interval(Duration::from_secs(10))
-            .http2_keep_alive_timeout(Duration::from_secs(5))
-            .http2_adaptive_window(true)  // Enable adaptive flow control
-            .timeout(Duration::from_millis(3000))  // Reduced from 10s to 3s
-            .connect_timeout(Duration::from_millis(2000))  // Reduced from 5s to 2s
-            .build()
-            .unwrap();
         
         let client = Self { 
             rpc_client: Arc::new(rpc_client), 
@@ -116,16 +104,16 @@ impl TemporalClient {
         let stop_ping = self.stop_ping.clone();
         
         let handle = tokio::spawn(async move {
-            let mut interval = tokio::time::interval(Duration::from_secs(60)); // Ping every 60 seconds
+            // Immediate first ping to warm connection and reduce first-submit cold start latency
-            
+            if let Err(e) = Self::send_ping_request(&http_client, &endpoint, &auth_token).await {
+                eprintln!("Temporal ping request failed: {}", e);
+            }
+            let mut interval = tokio::time::interval(Duration::from_secs(30));
             loop {
                 interval.tick().await;
-                
                 if stop_ping.load(Ordering::Relaxed) {
                     break;
                 }
-                
-                // Send ping request
                 if let Err(e) = Self::send_ping_request(&http_client, &endpoint, &auth_token).await {
                     eprintln!("Temporal ping request failed: {}", e);
                 }
@@ -151,24 +139,22 @@ impl TemporalClient {
             format!("{}/ping", endpoint)
         };
 
-        // Send GET request to /ping endpoint
+        // Short timeout for ping; consume body so connection is returned to pool for reuse by submit
         let response = http_client.get(&ping_url)
+            .timeout(Duration::from_millis(1500))
             .send()
             .await?;
-        
+        let status = response.status();
-        if response.status().is_success() {
+        let _ = response.bytes().await;
-            // ping successful, connection remains active
+        if !status.is_success() {
-            // Can optionally log, but to reduce noise, not printing here
+            eprintln!("Temporal ping request returned non-success status: {}", status);
-        } else {
-            eprintln!("Temporal ping request returned non-success status: {}", response.status());
         }
-        
         Ok(())
     }
 
     pub async fn send_transaction(&self, trade_type: TradeType, transaction: &VersionedTransaction, wait_confirmation: bool) -> Result<()> {
         let start_time = Instant::now();
-        let (content, signature) = serialize_transaction_and_encode(transaction, UiTransactionEncoding::Base64).await?;
+        let (content, signature) = serialize_transaction_and_encode(transaction, UiTransactionEncoding::Base64)?;
 
         // Build request body according to Nozomi documentation requirements
         let request_body = serde_json::to_string(&json!({

src/swqos/zeroslot.rs

@@ -1,10 +1,9 @@
-use crate::swqos::common::{poll_transaction_confirmation, serialize_transaction_and_encode};
+use crate::swqos::common::{default_http_client_builder, poll_transaction_confirmation, serialize_transaction_and_encode};
 use rand::seq::IndexedRandom;
 use reqwest::Client;
 use serde_json::json;
 use std::{sync::Arc, time::Instant};
 
-use std::time::Duration;
 use solana_transaction_status::UiTransactionEncoding;
 
 use anyhow::Result;
@@ -46,25 +45,13 @@ impl SwqosClientTrait for ZeroSlotClient {
 impl ZeroSlotClient {
     pub fn new(rpc_url: String, endpoint: String, auth_token: String) -> Self {
         let rpc_client = SolanaRpcClient::new(rpc_url);
-        let http_client = Client::builder()
+        let http_client = default_http_client_builder().build().unwrap();
-            // Optimized connection pool settings for high performance
-            .pool_idle_timeout(Duration::from_secs(120))
-            .pool_max_idle_per_host(256)  // Increased from 64 to 256
-            .tcp_keepalive(Some(Duration::from_secs(60)))  // Reduced from 1200 to 60
-            .tcp_nodelay(true)  // Disable Nagle's algorithm for lower latency
-            .http2_keep_alive_interval(Duration::from_secs(10))
-            .http2_keep_alive_timeout(Duration::from_secs(5))
-            .http2_adaptive_window(true)  // Enable adaptive flow control
-            .timeout(Duration::from_millis(3000))  // Reduced from 10s to 3s
-            .connect_timeout(Duration::from_millis(2000))  // Reduced from 5s to 2s
-            .build()
-            .unwrap();
         Self { rpc_client: Arc::new(rpc_client), endpoint, auth_token, http_client }
     }
 
     pub async fn send_transaction(&self, trade_type: TradeType, transaction: &VersionedTransaction, wait_confirmation: bool) -> Result<()> {
         let start_time = Instant::now();
-        let (content, signature) = serialize_transaction_and_encode(transaction, UiTransactionEncoding::Base64).await?;
+        let (content, signature) = serialize_transaction_and_encode(transaction, UiTransactionEncoding::Base64)?;
 
         let request_body = serde_json::to_string(&json!({
             "jsonrpc": "2.0",

src/trading/common/transaction_builder.rs

@@ -11,17 +11,17 @@ use super::{
 };
 use crate::{
     common::{nonce_cache::DurableNonceInfo, SolanaRpcClient},
-    constants::swqos::NODE1_TIP_ACCOUNTS,
     trading::{MiddlewareManager, core::transaction_pool::{acquire_builder, release_builder}},
 };
 
-/// Build standard RPC transaction
+/// Build standard RPC transaction.
+/// Takes `business_instructions` by reference to avoid per-task Vec clone in execute_parallel.
 pub async fn build_transaction(
     payer: Arc<Keypair>,
-    rpc: Option<Arc<SolanaRpcClient>>,
+    _rpc: Option<Arc<SolanaRpcClient>>,
     unit_limit: u32,
     unit_price: u64,
-    business_instructions: Vec<Instruction>,
+    business_instructions: &[Instruction],
     address_lookup_table_account: Option<AddressLookupTableAccount>,
     recent_blockhash: Option<Hash>,
     middleware_manager: Option<Arc<MiddlewareManager>>,
@@ -58,8 +58,8 @@ pub async fn build_transaction(
         unit_limit,
     ));
 
-    // Add business instructions
+    // Add business instructions (clone only here; avoids per-task Vec clone in execute_parallel)
-    instructions.extend(business_instructions);
+    instructions.extend_from_slice(business_instructions);
 
     // Get blockhash for transaction
     let blockhash = get_transaction_blockhash(recent_blockhash, durable_nonce.clone());

src/trading/core/async_executor.rs

@@ -1,4 +1,4 @@
-//! 并行执行器
+//! Parallel executor for multi-SWQOS submit.
 
 use anyhow::{anyhow, Result};
 use crossbeam_queue::ArrayQueue;
@@ -38,8 +38,9 @@ struct TaskResult {
     success: bool,
     signature: Signature,
     error: Option<anyhow::Error>,
-    swqos_type: SwqosType,  // 🔧 增加：记录SWQOS类型
+    #[allow(dead_code)]
-    landed_on_chain: bool,  // 🔧 Whether tx landed on-chain (even if failed)
+    swqos_type: SwqosType,
+    landed_on_chain: bool,
 }
 
 /// Check if an error indicates the transaction landed on-chain (vs network/timeout error)
@@ -86,14 +87,14 @@ impl ResultCollector {
     }
 
     fn submit(&self, result: TaskResult) {
-        // 🚀 优化：ArrayQueue 内部已保证同步，无需额外 fence
+        // ArrayQueue is already synchronized; no extra fence needed
         let is_success = result.success;
         let is_landed_failed = result.landed_on_chain && !result.success;
 
         let _ = self.results.push(result);
 
         if is_success {
-            self.success_flag.store(true, Ordering::Release); // Release 确保 push 可见
+            self.success_flag.store(true, Ordering::Release);
         } else if is_landed_failed {
             // 🔧 Tx landed but failed (e.g., ExceededSlippage) - nonce is consumed, no point waiting
             self.landed_failed_flag.store(true, Ordering::Release);
@@ -104,12 +105,11 @@ impl ResultCollector {
 
     async fn wait_for_success(&self) -> Option<(bool, Vec<Signature>, Option<anyhow::Error>)> {
         let start = Instant::now();
-        let timeout = std::time::Duration::from_secs(30);
+        let timeout = std::time::Duration::from_secs(5);
+        let poll_interval = std::time::Duration::from_millis(1000);
 
         loop {
-            // 🚀 Acquire 确保看到 push 的内容
             if self.success_flag.load(Ordering::Acquire) {
-                // 🔧 修复：收集所有签名
                 let mut signatures = Vec::new();
                 let mut has_success = false;
                 while let Some(result) = self.results.pop() {
@@ -123,7 +123,7 @@ impl ResultCollector {
                 }
             }
 
-            // 🔧 Early exit: if a tx landed but failed (e.g., ExceededSlippage),
+            // Early exit: if a tx landed but failed (e.g., ExceededSlippage),
             // nonce is consumed and other channels can't succeed - return immediately
             if self.landed_failed_flag.load(Ordering::Acquire) {
                 let mut signatures = Vec::new();
@@ -141,8 +141,7 @@ impl ResultCollector {
             }
 
             let completed = self.completed_count.load(Ordering::Acquire);
-            if completed >= self.total_tasks {
+                if completed >= self.total_tasks {
-                // 🔧 修复：收集所有签名
                 let mut signatures = Vec::new();
                 let mut last_error = None;
                 let mut any_success = false;
@@ -164,12 +163,11 @@ impl ResultCollector {
             if start.elapsed() > timeout {
                 return None;
             }
-            tokio::task::yield_now().await;
+            tokio::time::sleep(poll_interval).await;
         }
     }
 
     fn get_first(&self) -> Option<(bool, Vec<Signature>, Option<anyhow::Error>)> {
-        // 🔧 修复：收集已提交的所有签名
         let mut signatures = Vec::new();
         let mut has_success = false;
         let mut last_error = None;
@@ -190,11 +188,25 @@ impl ResultCollector {
             None
         }
     }
+
+    /// 等待全部任务完成（不等待链上确认），然后收集并返回所有签名。用于「多路提交」时返回多笔签名。
+    async fn wait_for_all_submitted(&self, timeout_secs: u64) -> Option<(bool, Vec<Signature>, Option<anyhow::Error>)> {
+        let start = Instant::now();
+        let timeout = std::time::Duration::from_secs(timeout_secs);
+        let poll_interval = std::time::Duration::from_millis(50);
+        while self.completed_count.load(Ordering::Acquire) < self.total_tasks {
+            if start.elapsed() > timeout {
+                break;
+            }
+            tokio::time::sleep(poll_interval).await;
+        }
+        self.get_first()
+    }
 }
 
-/// 🔧 修复：返回Vec<Signature>支持多SWQOS并发交易
+/// Execute trade on multiple SWQOS clients in parallel; returns success flag, all signatures, and last error.
 pub async fn execute_parallel(
-    swqos_clients: Vec<Arc<SwqosClient>>,
+    swqos_clients: &[Arc<SwqosClient>],
     payer: Arc<Keypair>,
     rpc: Option<Arc<SolanaRpcClient>>,
     instructions: Vec<Instruction>,
@@ -207,6 +219,7 @@ pub async fn execute_parallel(
     wait_transaction_confirmed: bool,
     with_tip: bool,
     gas_fee_strategy: GasFeeStrategy,
+    use_core_affinity: bool,
 ) -> Result<(bool, Vec<Signature>, Option<anyhow::Error>)> {
     let _exec_start = Instant::now();
 
@@ -223,10 +236,10 @@ pub async fn execute_parallel(
         return Err(anyhow!("No Rpc Default Swqos configured."));
     }
 
-    let cores = core_affinity::get_core_ids().unwrap();
+    let cores = core_affinity::get_core_ids().unwrap_or_default();
     let instructions = Arc::new(instructions);
 
-    // 预先计算所有有效的组合
+    // Precompute all valid (client, gas config) combinations
     let task_configs: Vec<_> = swqos_clients
         .iter()
         .enumerate()
@@ -243,7 +256,7 @@ pub async fn execute_parallel(
                 .into_iter()
                 .filter(|config| config.0.eq(&swqos_client.get_swqos_type()))
                 .filter(|config| {
-                    // 当需要 tip 且不是 Default 时，按 provider 最低小费进行筛选
+                    // When tip required and not Default, filter by provider minimum tip
                     if with_tip && !matches!(config.0, SwqosType::Default) {
                         let min_tip = match config.0 {
                             SwqosType::Jito => SWQOS_MIN_TIP_JITO,
@@ -261,9 +274,9 @@ pub async fn execute_parallel(
                             SwqosType::Speedlanding => SWQOS_MIN_TIP_SPEEDLANDING,
                             SwqosType::Default => SWQOS_MIN_TIP_DEFAULT,
                         };
-                        if config.2.tip < min_tip {
+                        if config.2.tip < min_tip && crate::common::sdk_log::sdk_log_enabled() {
                             println!(
-                                "⚠️ Config filtered: {:?} tip {} is below minimum required tip {}",
+                                "⚠️ Config filtered: {:?} tip {} is below minimum required {}",
                                 config.0, config.2.tip, min_tip
                             );
                         }
@@ -290,7 +303,8 @@ pub async fn execute_parallel(
     let _spawn_start = Instant::now();
 
     for (i, swqos_client, gas_fee_strategy_config) in task_configs {
-        let core_id = cores[i % cores.len()];
+        let core_id = cores.get(i % cores.len().max(1)).copied();
+        let use_affinity = use_core_affinity;
         let payer = payer.clone();
         let instructions = instructions.clone();
         let middleware_manager = middleware_manager.clone();
@@ -305,10 +319,15 @@ pub async fn execute_parallel(
         let rpc = rpc.clone();
         let durable_nonce = durable_nonce.clone();
         let address_lookup_table_account = address_lookup_table_account.clone();
+        let recent_blockhash_task = recent_blockhash.clone();
 
         tokio::spawn(async move {
             let _task_start = Instant::now();
-            core_affinity::set_for_current(core_id);
+            if use_affinity {
+                if let Some(cid) = core_id {
+                    core_affinity::set_for_current(cid);
+                }
+            }
 
             let tip_amount = if with_tip { tip } else { 0.0 };
 
@@ -318,9 +337,9 @@ pub async fn execute_parallel(
                 rpc,
                 unit_limit,
                 unit_price,
-                instructions.as_ref().clone(),
+                instructions.as_ref(),
                 address_lookup_table_account,
-                recent_blockhash,
+                recent_blockhash_task,
                 middleware_manager,
                 protocol_name,
                 is_buy,
@@ -338,8 +357,8 @@ pub async fn execute_parallel(
                         success: false,
                         signature: Signature::default(),
                         error: Some(e),
-                        swqos_type,  // 🔧 记录SWQOS类型
+                        swqos_type,
-                        landed_on_chain: false,  // Build failed, tx never sent
+                        landed_on_chain: false,
                     });
                     return;
                 }
@@ -349,6 +368,7 @@ pub async fn execute_parallel(
 
             let _send_start = Instant::now();
             let mut err: Option<anyhow::Error> = None;
+            #[allow(unused_assignments)]
             let mut landed_on_chain = false;
             let success = match swqos_client
                 .send_transaction(
@@ -371,28 +391,28 @@ pub async fn execute_parallel(
                 }
             };
 
-            // Transaction sent
+            // Transaction sent: always submit a result so collector never has "no result" for this task.
-
+            // If transaction has no signatures (malformed), submit with default signature and success=false.
-            if let Some(signature) = transaction.signatures.first() {
+            let sig = transaction.signatures.first().copied().unwrap_or_default();
-                collector.submit(TaskResult {
+            collector.submit(TaskResult {
-                    success,
+                success,
-                    signature: *signature,
+                signature: sig,
-                    error: err,
+                error: err,
-                    swqos_type,  // 🔧 记录SWQOS类型
+                swqos_type,
-                    landed_on_chain,  // 🔧 Whether tx landed (even if it failed)
+                landed_on_chain,
-                });
+            });
-            }
         });
     }
 
     // All tasks spawned
 
     if !wait_transaction_confirmed {
-        tokio::time::sleep(std::time::Duration::from_millis(10)).await;
+        const SUBMIT_TIMEOUT_SECS: u64 = 30;
-        if let Some(result) = collector.get_first() {
+        let (success, signatures, last_error) = collector
-            return Ok(result);
+            .wait_for_all_submitted(SUBMIT_TIMEOUT_SECS)
-        }
+            .await
-        return Err(anyhow!("No transaction signature available"));
+            .unwrap_or((false, vec![], Some(anyhow!("No SWQOS result within {}s", SUBMIT_TIMEOUT_SECS))));
+        return Ok((success, signatures, last_error));
     }
 
     if let Some(result) = collector.wait_for_success().await {

src/trading/core/execution.rs

@@ -1,4 +1,5 @@
-//! 执行模块
+//! Execution: instruction preprocessing, cache prefetch, branch hints.
+//! 执行模块：指令预处理、缓存预取、分支提示。
 
 use anyhow::Result;
 use solana_sdk::{
@@ -12,7 +13,15 @@ use crate::perf::{
     simd::SIMDMemory,
 };
 
-/// 预取工具
+/// Solana account key size in bytes (Pubkey). 每个账户（Pubkey）的字节数。
+pub const BYTES_PER_ACCOUNT: usize = 32;
+
+/// Threshold above which we warn about large instruction count. 超过此次数会打 warning。
+pub const MAX_INSTRUCTIONS_WARN: usize = 64;
+
+/// Prefetch helper: triggers CPU prefetch for soon-to-be-accessed data to reduce cache-miss latency.
+/// Call once on hot-path refs; no-op on non-x86_64. Safety: caller ensures valid read-only ref, no concurrent write.
+/// 缓存预取：对即将访问的数据做 CPU 预取以降低 cache-miss；热路径上调用一次即可；非 x86_64 为 no-op。安全：调用方保证有效只读、无并发写。
 pub struct Prefetch;
 
 impl Prefetch {
@@ -21,20 +30,15 @@ impl Prefetch {
         if instructions.is_empty() {
             return;
         }
-
+        // Prefetch first/middle/last instruction into L1 for subsequent build_transaction access. 预取首/中/尾指令到 L1。
-        // 预取第一条指令
         unsafe {
             BranchOptimizer::prefetch_read_data(&instructions[0]);
         }
-
-        // 预取中间指令
         if instructions.len() > 2 {
             unsafe {
                 BranchOptimizer::prefetch_read_data(&instructions[instructions.len() / 2]);
             }
         }
-
-        // 预取最后一条指令
         if instructions.len() > 1 {
             unsafe {
                 BranchOptimizer::prefetch_read_data(&instructions[instructions.len() - 1]);
@@ -57,46 +61,40 @@ impl Prefetch {
     }
 }
 
-/// 内存操作
+/// Memory operations (SIMD-accelerated where available). 内存操作（可用时走 SIMD 加速）。
 pub struct MemoryOps;
 
 impl MemoryOps {
     #[inline(always)]
     pub unsafe fn copy(dst: *mut u8, src: *const u8, len: usize) {
-        // 优先使用 AVX2 SIMD 加速
         SIMDMemory::copy_avx2(dst, src, len);
     }
 
     #[inline(always)]
     pub unsafe fn compare(a: *const u8, b: *const u8, len: usize) -> bool {
-        // 优先使用 AVX2 SIMD 比较
         SIMDMemory::compare_avx2(a, b, len)
     }
 
     #[inline(always)]
     pub unsafe fn zero(ptr: *mut u8, len: usize) {
-        // 优先使用 AVX2 SIMD 清零
         SIMDMemory::zero_avx2(ptr, len);
     }
 }
 
-/// 指令处理器
+/// Instruction preprocessing and validation. 指令预处理与校验。
 pub struct InstructionProcessor;
 
 impl InstructionProcessor {
     #[inline(always)]
     pub fn preprocess(instructions: &[Instruction]) -> Result<()> {
-        // 分支预测: 大概率指令不为空
         if BranchOptimizer::unlikely(instructions.is_empty()) {
             return Err(anyhow::anyhow!("Instructions empty"));
         }
 
-        // 预取所有指令到缓存
         Prefetch::instructions(instructions);
 
-        // 分支预测: 大概率指令数量合理
+        if BranchOptimizer::unlikely(instructions.len() > MAX_INSTRUCTIONS_WARN) {
-        if BranchOptimizer::unlikely(instructions.len() > 64) {
+            tracing::warn!(target: "sol_trade_sdk", "Large instruction count: {}", instructions.len());
-            log::warn!("Large instruction count: {}", instructions.len());
         }
 
         Ok(())
@@ -107,7 +105,7 @@ impl InstructionProcessor {
         let mut total_size = 0;
 
         for (i, instr) in instructions.iter().enumerate() {
-            // 预取下一条指令
+            // Prefetch next instruction; safe: same slice, read-only. 预取下一条指令；安全：同 slice、只读。
             unsafe {
                 if let Some(next_instr) = instructions.get(i + 1) {
                     BranchOptimizer::prefetch_read_data(next_instr);
@@ -115,20 +113,19 @@ impl InstructionProcessor {
             }
 
             total_size += instr.data.len();
-            total_size += instr.accounts.len() * 32; // 每个账户 32 字节
+            total_size += instr.accounts.len() * BYTES_PER_ACCOUNT;
         }
 
         total_size
     }
 }
 
-/// 执行路径
+/// Trade direction / execution path helpers. 交易方向与执行路径辅助。
 pub struct ExecutionPath;
 
 impl ExecutionPath {
     #[inline(always)]
     pub fn is_buy(input_mint: &Pubkey) -> bool {
-        // 分支预测: 大概率是买入
         let is_buy = input_mint == &crate::constants::SOL_TOKEN_ACCOUNT
             || input_mint == &crate::constants::WSOL_TOKEN_ACCOUNT
             || input_mint == &crate::constants::USD1_TOKEN_ACCOUNT

src/trading/core/executor.rs

@@ -4,14 +4,17 @@ use solana_sdk::{
     instruction::Instruction, message::AddressLookupTableAccount, pubkey::Pubkey,
     signature::Keypair, signature::Signature,
 };
-use std::{sync::Arc, time::Instant};
+use std::{sync::Arc, time::{Duration, Instant}};
+#[allow(unused_imports)]
+use tracing::{info, trace, warn};
 
 use crate::{
     common::{nonce_cache::DurableNonceInfo, GasFeeStrategy, SolanaRpcClient},
     perf::syscall_bypass::SystemCallBypassManager,
+    swqos::common::poll_any_transaction_confirmation,
     trading::core::{
         async_executor::execute_parallel,
-        execution::{ExecutionPath, InstructionProcessor, Prefetch},
+        execution::{InstructionProcessor, Prefetch},
         traits::TradeExecutor,
     },
     trading::MiddlewareManager,
@@ -20,7 +23,9 @@ use once_cell::sync::Lazy;
 use crate::swqos::TradeType;
 use super::{params::SwapParams, traits::InstructionBuilder};
 
-/// 🚀 全局系统调用绕过管理器
+/// Global syscall bypass manager (reserved for future time/IO optimizations).
+/// 全局系统调用绕过管理器（预留，后续可接入时间/IO 等优化）。
+#[allow(dead_code)]
 static SYSCALL_BYPASS: Lazy<SystemCallBypassManager> = Lazy::new(|| {
     use crate::perf::syscall_bypass::SyscallBypassConfig;
     SystemCallBypassManager::new(SyscallBypassConfig::default())
@@ -45,27 +50,29 @@ impl GenericTradeExecutor {
 #[async_trait::async_trait]
 impl TradeExecutor for GenericTradeExecutor {
     async fn swap(&self, params: SwapParams) -> Result<(bool, Vec<Signature>, Option<anyhow::Error>)> {
-        let total_start = Instant::now();
+        // Sample total start only when logging or simulate. 仅在有日志或 simulate 时取起点。
+        let total_start = (params.log_enabled || params.simulate).then(Instant::now);
+        let timing_start_us: Option<i64> = if params.log_enabled {
+            Some(params.grpc_recv_us.unwrap_or_else(crate::common::clock::now_micros))
+        } else {
+            None
+        };
 
-        // 判断买卖方向
         let is_buy = params.trade_type == TradeType::Buy || params.trade_type == TradeType::CreateAndBuy;
 
-        // CPU 预取
         Prefetch::keypair(&params.payer);
 
-        // 构建指令
+        // Time build only when log_enabled to avoid cold-path syscalls. 仅 log_enabled 时计时，减少冷路径 syscall。
-        let build_start = Instant::now();
+        let build_start = params.log_enabled.then(Instant::now);
         let instructions = if is_buy {
             self.instruction_builder.build_buy_instructions(&params).await?
         } else {
             self.instruction_builder.build_sell_instructions(&params).await?
         };
-        let build_elapsed = build_start.elapsed();
+        let build_elapsed = build_start.map(|s| s.elapsed()).unwrap_or(Duration::ZERO);
 
-        // 指令预处理
         InstructionProcessor::preprocess(&instructions)?;
 
-        // 中间件处理
         let final_instructions = match &params.middleware_manager {
             Some(middleware_manager) => middleware_manager
                 .apply_middlewares_process_protocol_instructions(
@@ -76,12 +83,10 @@ impl TradeExecutor for GenericTradeExecutor {
             None => instructions,
         };
 
-        // 提交前耗时
+        let before_submit_elapsed = total_start.as_ref().map(|s| s.elapsed()).unwrap_or(Duration::ZERO);
-        let before_submit_elapsed = total_start.elapsed();
 
-        // 如果是模拟模式，直接通过 RPC 模拟交易
         if params.simulate {
-            let send_start = Instant::now();
+            let send_start = crate::common::sdk_log::sdk_log_enabled().then(Instant::now);
             let result = simulate_transaction(
                 params.rpc,
                 params.payer,
@@ -96,44 +101,23 @@ impl TradeExecutor for GenericTradeExecutor {
                 params.gas_fee_strategy,
             )
             .await;
-            let send_elapsed = send_start.elapsed();
+            let send_elapsed = send_start.map(|s| s.elapsed()).unwrap_or(Duration::ZERO);
-            let total_elapsed = total_start.elapsed();
+            let total_elapsed = total_start.as_ref().map(|s| s.elapsed()).unwrap_or(Duration::ZERO);
 
-            // Get performance metrics using fast timestamp
+            if crate::common::sdk_log::sdk_log_enabled() {
-            let timestamp_ns = SYSCALL_BYPASS.fast_timestamp_nanos();
+                let dir = if is_buy { "Buy" } else { "Sell" };
-
+                println!(" [SDK] {} timing(sim) build_instructions: {:.2}ms before_submit: {:.2}ms simulate: {:.2}ms total: {:.2}ms", dir, build_elapsed.as_secs_f64() * 1000.0, before_submit_elapsed.as_secs_f64() * 1000.0, send_elapsed.as_secs_f64() * 1000.0, total_elapsed.as_secs_f64() * 1000.0);
-            // Print all timing metrics at once to avoid blocking critical path
+            }
-            println!("[Timestamp] {}ns", timestamp_ns);
-            println!(
-                "[Build Instructions] Time: {:.3}ms ({:.0}μs)",
-                build_elapsed.as_micros() as f64 / 1000.0,
-                build_elapsed.as_micros()
-            );
-            println!(
-                "[Before Submit] {:.3}ms ({:.0}μs)",
-                before_submit_elapsed.as_micros() as f64 / 1000.0,
-                before_submit_elapsed.as_micros()
-            );
-            println!(
-                "[Simulate Transaction] Time: {:.3}ms ({:.0}μs)",
-                send_elapsed.as_micros() as f64 / 1000.0,
-                send_elapsed.as_micros()
-            );
-            println!(
-                "[Total Time] {:.3}ms ({:.0}μs)",
-                total_elapsed.as_micros() as f64 / 1000.0,
-                total_elapsed.as_micros()
-            );
 
             return result;
         }
 
-        // 并行发送交易
+        let need_confirm = params.wait_transaction_confirmed;
-        let send_start = Instant::now();
+        let send_start = params.log_enabled.then(Instant::now);
         let result = execute_parallel(
-            params.swqos_clients.clone(),
+            &params.swqos_clients,
             params.payer,
-            params.rpc,
+            params.rpc.clone(),
             final_instructions,
             params.address_lookup_table_account,
             params.recent_blockhash,
@@ -141,30 +125,67 @@ impl TradeExecutor for GenericTradeExecutor {
             params.middleware_manager,
             self.protocol_name,
             is_buy,
-            params.wait_transaction_confirmed,
+            false, // submit only here; confirmation and log timing handled below
             if is_buy { true } else { params.with_tip },
             params.gas_fee_strategy,
+            params.use_core_affinity,
         )
         .await;
-        let send_elapsed = send_start.elapsed();
+        let send_elapsed = send_start.map(|s| s.elapsed()).unwrap_or(Duration::ZERO);
-        let total_elapsed = total_start.elapsed();
 
-        // Get performance metrics using fast timestamp
+        if params.log_enabled && crate::common::sdk_log::sdk_log_enabled() {
-        #[cfg(feature = "perf-trace")]
+            let dir = if is_buy { "Buy" } else { "Sell" };
-        {
+            let build_ms = build_elapsed.as_secs_f64() * 1000.0;
-            let timestamp_ns = SYSCALL_BYPASS.fast_timestamp_nanos();
+            let before_ms = before_submit_elapsed.as_secs_f64() * 1000.0;
-            log::trace!(
+            let send_ms = send_elapsed.as_secs_f64() * 1000.0;
-                "[Execute] timestamp_ns={} build_us={} before_submit_us={} send_us={} total_us={}",
+            if let Some(start_us) = timing_start_us {
-                timestamp_ns,
+                let now_us = crate::common::clock::now_micros();
-                build_elapsed.as_micros(),
+                let start_to_submit_us = (now_us - start_us).max(0);
-                before_submit_elapsed.as_micros(),
+                println!(" [SDK] {} timing(after_submit) build_instructions: {:.2}ms before_submit: {:.2}ms submit: {:.2}ms start_to_submit: {} μs", dir, build_ms, before_ms, send_ms, start_to_submit_us);
-                send_elapsed.as_micros(),
+            } else {
-                total_elapsed.as_micros()
+                println!(" [SDK] {} timing(after_submit) build_instructions: {:.2}ms before_submit: {:.2}ms submit: {:.2}ms", dir, build_ms, before_ms, send_ms);
-            );
+            }
         }
-        
+
-        #[cfg(not(feature = "perf-trace"))]
+        let result = if need_confirm {
-        let _ = (build_elapsed, before_submit_elapsed, send_elapsed, total_elapsed);
+            let (ok, sigs, err) = match &result {
+                Ok((success, signatures, last_error)) => (
+                    *success,
+                    signatures.clone(),
+                    last_error.as_ref().map(|e| anyhow::anyhow!("{}", e)),
+                ),
+                Err(e) => (false, vec![], Some(anyhow::anyhow!("{}", e))),
+            };
+            let confirm_result = if let Some(rpc) = params.rpc.as_ref() {
+                if sigs.is_empty() {
+                    (ok, sigs, err)
+                } else {
+                let confirm_start = (params.log_enabled && crate::common::sdk_log::sdk_log_enabled()).then(Instant::now);
+                let poll_res = poll_any_transaction_confirmation(rpc, &sigs, true).await;
+                let confirm_elapsed = confirm_start.map(|s| s.elapsed()).unwrap_or(Duration::ZERO);
+                if params.log_enabled && crate::common::sdk_log::sdk_log_enabled() {
+                    let dir = if is_buy { "Buy" } else { "Sell" };
+                    let confirm_ms = confirm_elapsed.as_secs_f64() * 1000.0;
+                    let total_ms = total_start.as_ref().map(|s| s.elapsed()).unwrap_or(Duration::ZERO).as_secs_f64() * 1000.0;
+                    println!(" [SDK] {} timing(after_confirm) confirm: {:.2}ms total: {:.2}ms", dir, confirm_ms, total_ms);
+                }
+                match poll_res {
+                    Ok(_) => (true, sigs, None),
+                    Err(e) => (false, sigs, Some(e)),
+                }
+                }
+            } else {
+                (ok, sigs, err)
+            };
+            Ok(confirm_result)
+        } else {
+            if params.log_enabled && crate::common::sdk_log::sdk_log_enabled() {
+                let total_ms = total_start.as_ref().map(|s| s.elapsed()).unwrap_or(Duration::ZERO).as_secs_f64() * 1000.0;
+                let dir = if is_buy { "Buy" } else { "Sell" };
+                println!(" [SDK] {} timing total: {:.2}ms", dir, total_ms);
+            }
+            result
+        };
 
         result
     }
@@ -174,7 +195,8 @@ impl TradeExecutor for GenericTradeExecutor {
     }
 }
 
-/// 🔧 修复：Simulate模式返回Vec<Signature>（单个RPC模拟）
+/// Simulate mode: single RPC simulation, returns Vec<Signature> for API consistency.
+/// 模拟模式：单次 RPC 模拟，返回 Vec<Signature> 以与 API 一致。
 async fn simulate_transaction(
     rpc: Option<Arc<SolanaRpcClient>>,
     payer: Arc<Keypair>,
@@ -215,7 +237,7 @@ async fn simulate_transaction(
         Some(rpc.clone()),
         unit_limit,
         unit_price,
-        instructions,
+        &instructions,
         address_lookup_table_account,
         recent_blockhash,
         middleware_manager,
@@ -256,12 +278,12 @@ async fn simulate_transaction(
     if let Some(err) = simulate_result.value.err {
         #[cfg(feature = "perf-trace")]
         {
-            log::warn!("[Simulation Failed] error={:?} signature={:?}", err, signature);
+            warn!(target: "sol_trade_sdk", "[Simulation Failed] error={:?} signature={:?}", err, signature);
             if let Some(logs) = &simulate_result.value.logs {
-                log::trace!("Transaction logs: {:?}", logs);
+                trace!(target: "sol_trade_sdk", "Transaction logs: {:?}", logs);
             }
             if let Some(units_consumed) = simulate_result.value.units_consumed {
-                log::trace!("Compute Units Consumed: {}", units_consumed);
+                trace!(target: "sol_trade_sdk", "Compute Units Consumed: {}", units_consumed);
             }
         }
         return Ok((false, vec![signature], Some(anyhow::anyhow!("{:?}", err))));
@@ -270,12 +292,12 @@ async fn simulate_transaction(
     // Simulation succeeded
     #[cfg(feature = "perf-trace")]
     {
-        log::info!("[Simulation Succeeded] signature={:?}", signature);
+        info!(target: "sol_trade_sdk", "[Simulation Succeeded] signature={:?}", signature);
         if let Some(units_consumed) = simulate_result.value.units_consumed {
-            log::trace!("Compute Units Consumed: {}", units_consumed);
+            trace!(target: "sol_trade_sdk", "Compute Units Consumed: {}", units_consumed);
         }
         if let Some(logs) = &simulate_result.value.logs {
-            log::trace!("Transaction logs: {:?}", logs);
+            trace!(target: "sol_trade_sdk", "Transaction logs: {:?}", logs);
         }
     }
 

src/trading/core/params.rs

@@ -67,6 +67,12 @@ pub struct SwapParams {
     pub fixed_output_amount: Option<u64>,
     pub gas_fee_strategy: GasFeeStrategy,
     pub simulate: bool,
+    /// Whether to output SDK logs (from TradeConfig.log_enabled).
+    pub log_enabled: bool,
+    /// Whether to pin parallel submit tasks to cores (from TradeConfig.use_core_affinity).
+    pub use_core_affinity: bool,
+    /// Optional event receive time in microseconds (same scale as sol-parser-sdk clock::now_micros). Used as timing start when log_enabled.
+    pub grpc_recv_us: Option<i64>,
     /// Use exact SOL amount instructions (buy_exact_sol_in for PumpFun, buy_exact_quote_in for PumpSwap).
     /// When Some(true) or None (default), the exact SOL/quote amount is spent and slippage is applied to output tokens.
     /// When Some(false), uses regular buy instruction where slippage is applied to SOL/quote input.
@@ -107,6 +113,8 @@ impl PumpFunParams {
         }
     }
 
+    /// When building from event/parser (e.g. sol-parser-sdk), pass `is_cashback_coin` from the event
+    /// so that sell instructions include the correct remaining accounts for cashback.
     pub fn from_dev_trade(
         mint: Pubkey,
         token_amount: u64,
@@ -118,6 +126,7 @@ impl PumpFunParams {
         close_token_account_when_sell: Option<bool>,
         fee_recipient: Pubkey,
         token_program: Pubkey,
+        is_cashback_coin: bool,
     ) -> Self {
         let is_mayhem_mode = fee_recipient == MAYHEM_FEE_RECIPIENT;
         let bonding_curve_account = BondingCurveAccount::from_dev_trade(
@@ -127,6 +136,7 @@ impl PumpFunParams {
             max_sol_cost,
             creator,
             is_mayhem_mode,
+            is_cashback_coin,
         );
         Self {
             bonding_curve: Arc::new(bonding_curve_account),
@@ -137,6 +147,8 @@ impl PumpFunParams {
         }
     }
 
+    /// When building from event/parser (e.g. sol-parser-sdk), pass `is_cashback_coin` from the event
+    /// so that sell instructions include the correct remaining accounts for cashback.
     pub fn from_trade(
         bonding_curve: Pubkey,
         associated_bonding_curve: Pubkey,
@@ -150,6 +162,7 @@ impl PumpFunParams {
         close_token_account_when_sell: Option<bool>,
         fee_recipient: Pubkey,
         token_program: Pubkey,
+        is_cashback_coin: bool,
     ) -> Self {
         let is_mayhem_mode = fee_recipient == MAYHEM_FEE_RECIPIENT;
         let bonding_curve = BondingCurveAccount::from_trade(
@@ -161,6 +174,7 @@ impl PumpFunParams {
             real_token_reserves,
             real_sol_reserves,
             is_mayhem_mode,
+            is_cashback_coin,
         );
         Self {
             bonding_curve: Arc::new(bonding_curve),
@@ -189,6 +203,7 @@ impl PumpFunParams {
             complete: account.0.complete,
             creator: account.0.creator,
             is_mayhem_mode: account.0.is_mayhem_mode,
+            is_cashback_coin: account.0.is_cashback_coin,
         };
         let associated_bonding_curve = get_associated_token_address_with_program_id(
             &bonding_curve.account,
@@ -243,6 +258,8 @@ pub struct PumpSwapParams {
     pub quote_token_program: Pubkey,
     /// Whether the pool is in mayhem mode
     pub is_mayhem_mode: bool,
+    /// Whether the pool's coin has cashback enabled
+    pub is_cashback_coin: bool,
 }
 
 impl PumpSwapParams {
@@ -274,6 +291,7 @@ impl PumpSwapParams {
             base_token_program,
             quote_token_program,
             is_mayhem_mode,
+            is_cashback_coin: false,
         }
     }
 
@@ -335,6 +353,7 @@ impl PumpSwapParams {
             } else {
                 crate::constants::TOKEN_PROGRAM_2022
             },
+            is_cashback_coin: pool_data.is_cashback_coin,
             quote_token_program: if pool_data.pool_quote_token_account == quote_token_program_ata {
                 crate::constants::TOKEN_PROGRAM
             } else {