C语言计算代码执行所耗CPU时钟周期

该代码受乱序执行等影响, 需要sync 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 dword ptr [_end.LowPart], eax mov dword ptr[_end.HighPart], edx } long interval = static_cast<long>(_e