c++高性能内存池.rar

#include <iostream> // std::cout, std::endl #include <cassert> // assert() #include <ctime> // clock() #include <vector> // std::vector #include "MemoryPool.hpp" // MemoryPool<T> #include "StackAlloc.hpp" // StackAlloc<T, Alloc> // 插入元素个数 #define ELEMS 100000 // 重复次数 #define REPS 100 int main() { clock_t start; // 使用 STL 默认分配器 StackAlloc<int, std::allocator<int> > stackDefault; start = clock(); for (int j = 0; j < REPS; j++) { assert(stackDefault.empty()); for (int i = 0; i < ELEMS; i++) stackDefault.push(i); for (int i = 0; i < ELEMS; i++) stackDefault.pop(); } std::cout << "Default Allocator Time: "; std::cout << (((double)clock() - start) / CLOCKS_PER_SEC) << "\n\n"; // 使用内存池 StackAlloc<int, MemoryPool<int> > stackPool; start = clock(); for (int j = 0; j < REPS; j++) { assert(stackPool.empty()); for (int i = 0; i < ELEMS; i++) stackPool.push(i); for (int i = 0; i < ELEMS; i++) stackPool.pop(); } std::cout << "MemoryPool Allocator Time: "; std::cout << (((double)clock() - start) / CLOCKS_PER_SEC) << "\n\n"; // 使用vector std::vector<int> stackVector; start = clock(); for (int j = 0; j < REPS; j++) { assert(stackVector.empty()); for (int i = 0; i < ELEMS; i++) stackVector.push_back(i); for (int i = 0; i < ELEMS; i++) stackVector.pop_back(); } std::cout << "Vector Time: "; std::cout << (((double)clock() - start) / CLOCKS_PER_SEC) << "\n\n"; return 0; }