随笔分类 -  性能

C语言计算代码执行所耗CPU时钟周期
摘要：#include "windows.h"LARGE_INTEGER _start = { 0 }, _end = { 0 }; __asm{ rdtsc mov dword ptr [_start.LowPart], eax mov dword ptr[_start.HighPart], edx } //your code here __asm{ rdtsc mov ... 阅读全文

posted @ 2016-06-05 21:53 felixr 阅读(2359) 评论(0) 推荐(0)

MAP,HASH_MAP和数组时间对比
摘要：VS2013 + WIN7 64运行结果： MAP: Add item time is 0.265SMAP: look for item time is 0.094S1000000MAP: Calc Item time is 0.094S,Count = 1000000HASH_MAP:time i 阅读全文

posted @ 2016-04-17 21:32 felixr 阅读(534) 评论(0) 推荐(0)

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