Lua5.2 一些性能测评

1. luaL_newstate测试

#include<time.h>

#include<iostream>
using namespace std;

#include<lua.hpp>

int main()
{
    clock_t  time_start = clock();

    for(int i =0;i<100000;++i)
    {
        lua_State *l = luaL_newstate();
    }

    clock_t  time_end = clock();
    printf("this time use %lfs\n", (double)(time_end - time_start)/CLOCKS_PER_SEC);
    system("pause");
    return 0;
}

运行结果：

this time use 4.225000s

一秒大约可以新建2W个空state

2.测试newthread

#include<time.h>

#include<iostream>
using namespace std;

#include<lua.hpp>

int main()
{
    clock_t  time_start = clock();

    lua_State *master = luaL_newstate();

    for(int i =0;i<30;++i)
    {
        lua_State *l = lua_newthread(master);
    }

    clock_t  time_end = clock();
    printf("this time use %lfs\n", (double)(time_end - time_start)/CLOCKS_PER_SEC);
    system("pause");
    return 0;
}

运行结果：

this time use 0.001000s

state最好不要太多，堆栈容易爆掉。看来设计的时候叫thread意思就是当它是伪线程用