Wednesday, August 25, 2004

精确计时LINUX&WINDOWS

IBM Edward G. Bradford LINUX&WINDOWS精确计时比较, windows 精度稍差，效率稍低，不过两者都可以接受。
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1 comment:

  1. Li-Zhao 李钊10:06 AM

    运行时：Linux 和 Windows 2000上的高性能编程技术
    用 QueryPerformanceCounter() 计算秒


    LARGE_INTEGER tim, freq;
    double seconds;

    QueryPerformanceCounter(&tim);
    QeryPerformanceFrequency(&freq);
    seconds = (double)tim / (double) freq;

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