feat: Add caching system and performance optimizations

- Add fast_fn module with global caches for PDA, ATA, and instruction operations
- Implement memory-efficient caches using CLRU and parking_lot for thread-safe access
- Optimize compute budget instruction generation with caching
- Replace std::sync::Mutex with parking_lot::Mutex for better performance
- Add dedicated caching for PumpFun PDAs and associated token addresses
- Improve transaction building with batch signature optimization
- Add new dependencies: clru, smallvec, parking_lot for cache infrastructure
- Remove unused utility functions in pumpfun module
- Enhance error messages for tip fee configuration validation

src/trading/common/compute_budget_manager.rs

@@ -1,28 +1,59 @@
+use crate::common::PriorityFee;
+use dashmap::DashMap;
+use once_cell::sync::Lazy;
+use smallvec::SmallVec;
 use solana_sdk::{compute_budget::ComputeBudgetInstruction, instruction::Instruction};
 
-use crate::common::PriorityFee;
+/// 缓存键，包含计算预算指令的所有参数
+#[derive(Debug, Clone, PartialEq, Eq, Hash)]
+struct ComputeBudgetCacheKey {
+    data_size_limit: u32,
+    unit_price: u64,
+    unit_limit: u32,
+    is_buy: bool,
+}
 
-/// 为交易添加计算预算指令
-pub fn add_compute_budget_instructions(
-    instructions: &mut Vec<Instruction>,
+/// 全局缓存，存储计算预算指令
+/// 使用 DashMap 提供高性能的无锁并发访问
+static COMPUTE_BUDGET_CACHE: Lazy<DashMap<ComputeBudgetCacheKey, SmallVec<[Instruction; 3]>>> =
+    Lazy::new(|| DashMap::new());
+
+#[inline(always)]
+pub fn compute_budget_instructions(
     priority_fee: &PriorityFee,
     data_size_limit: u32,
     is_rpc: bool,
     is_buy: bool,
-) {
-    if is_buy {
-        instructions
-            .push(ComputeBudgetInstruction::set_loaded_accounts_data_size_limit(data_size_limit));
-    }
-    if is_rpc {
-        instructions
-            .push(ComputeBudgetInstruction::set_compute_unit_price(priority_fee.rpc_unit_price));
-        instructions
-            .push(ComputeBudgetInstruction::set_compute_unit_limit(priority_fee.rpc_unit_limit));
+) -> SmallVec<[Instruction; 3]> {
+    let (unit_price, unit_limit) = if is_rpc {
+        (priority_fee.rpc_unit_price, priority_fee.rpc_unit_limit)
     } else {
-        instructions
-            .push(ComputeBudgetInstruction::set_compute_unit_price(priority_fee.tip_unit_price));
-        instructions
-            .push(ComputeBudgetInstruction::set_compute_unit_limit(priority_fee.tip_unit_limit));
+        (priority_fee.tip_unit_price, priority_fee.tip_unit_limit)
+    };
+
+    // 创建缓存键
+    let cache_key = ComputeBudgetCacheKey { data_size_limit, unit_price, unit_limit, is_buy };
+
+    // 先尝试从缓存中获取
+    if let Some(cached_insts) = COMPUTE_BUDGET_CACHE.get(&cache_key) {
+        return cached_insts.clone();
     }
+
+    // 缓存未命中，生成新的指令
+    let mut insts = SmallVec::<[Instruction; 3]>::new();
+
+    if is_buy {
+        insts.push(ComputeBudgetInstruction::set_loaded_accounts_data_size_limit(data_size_limit));
+    }
+
+    insts.extend([
+        ComputeBudgetInstruction::set_compute_unit_price(unit_price),
+        ComputeBudgetInstruction::set_compute_unit_limit(unit_limit),
+    ]);
+
+    // 将结果存入缓存
+    let insts_clone = insts.clone();
+    COMPUTE_BUDGET_CACHE.insert(cache_key, insts_clone);
+
+    insts
 }