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BenchMark.cpp
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121 lines (100 loc) · 2.81 KB
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#pragma once
//#include "ThreadCache.h"
#include<vector>
#include<thread>
#include<memory>
#include"MemoryManagement.h"
//#include <time.h>
//单轮次申请释放次数 线程数 轮次
void BenchmarkMalloc(size_t ntimes, size_t nworks, size_t rounds)
{
std::vector<std::thread> vthread(nworks);
size_t malloc_costtime = 0;
size_t free_costtime = 0;
for (size_t k = 0; k < nworks; ++k)
{
vthread[k] = std::thread([&, k]() {
std::vector<void*> v;
v.reserve(ntimes);
for (size_t j = 0; j < rounds; ++j)
{
size_t begin1 = clock();
for (size_t i = 0; i < ntimes; i++)
{
v.push_back(malloc(16));
}
size_t end1 = clock();
size_t begin2 = clock();
for (size_t i = 0; i < ntimes; i++)
{
free(v[i]);
}
size_t end2 = clock();
v.clear();
malloc_costtime += end1 - begin1;
free_costtime += end2 - begin2;
}
});
}
for (auto& t : vthread)
{
t.join();
}
printf("%u个线程并发执行%u轮次，每轮次malloc %u次: 花费：%u ms\n",
nworks, rounds, ntimes, malloc_costtime);
printf("%u个线程并发执行%u轮次，每轮次free %u次: 花费：%u ms\n",
nworks, rounds, ntimes, free_costtime);
printf("%u个线程并发malloc&free %u次，总计花费：%u ms\n",
nworks, nworks*rounds*ntimes, malloc_costtime + free_costtime);
}
// 单轮次申请释放次数 线程数 轮次
void BenchmarkConcurrentMalloc(size_t ntimes, size_t nworks, size_t rounds)
{
std::vector<std::thread> vthread(nworks);
size_t malloc_costtime = 0;
size_t free_costtime = 0;
for (size_t k = 0; k < nworks; ++k)
{
vthread[k] = std::thread([&]() {
std::vector<void*> v;
v.reserve(ntimes);
for (size_t j = 0; j < rounds; ++j)
{
size_t begin1 = clock();
for (size_t i = 0; i < ntimes; i++)
{
v.push_back(hcMalloc(16));
}
size_t end1 = clock();
size_t begin2 = clock();
for (size_t i = 0; i < ntimes; i++)
{
//hcFree(v[i]);
}
size_t end2 = clock();
v.clear();
malloc_costtime += end1 - begin1;
free_costtime += end2 - begin2;
}
});
}
for (auto& t : vthread)
{
t.join();
}
printf("%u个线程并发执行%u轮次，每轮次concurrent alloc %u次: 花费：%u ms\n",
nworks, rounds, ntimes, malloc_costtime);
printf("%u个线程并发执行%u轮次，每轮次concurrent free %u次: 花费：%u ms\n",
nworks, rounds, ntimes, free_costtime);
printf("%u个线程并发concurrent alloc&free %u次，总计花费：%u ms\n",
nworks, nworks*rounds*ntimes, malloc_costtime + free_costtime);
}
int main()
{
cout << "==========================================================" << std::endl;
BenchmarkMalloc(100000, 4, 10);
cout <<std:: endl << std::endl;
BenchmarkConcurrentMalloc(100000, 4, 10);
cout << "==========================================================" << std::endl;
return 0;
}