| #include "BenchSysTimer_windows.h" |
| |
| //Time |
| #define WIN32_LEAN_AND_MEAN 1 |
| #include <Windows.h> |
| |
| static ULONGLONG winCpuTime() { |
| FILETIME createTime; |
| FILETIME exitTime; |
| FILETIME usrTime; |
| FILETIME sysTime; |
| if (0 == GetProcessTimes(GetCurrentProcess() |
| , &createTime, &exitTime |
| , &sysTime, &usrTime)) |
| { |
| return 0; |
| } |
| ULARGE_INTEGER start_cpu_sys; |
| ULARGE_INTEGER start_cpu_usr; |
| start_cpu_sys.LowPart = sysTime.dwLowDateTime; |
| start_cpu_sys.HighPart = sysTime.dwHighDateTime; |
| start_cpu_usr.LowPart = usrTime.dwLowDateTime; |
| start_cpu_usr.HighPart = usrTime.dwHighDateTime; |
| return start_cpu_sys.QuadPart + start_cpu_usr.QuadPart; |
| } |
| |
| void BenchSysTimer::startWall() { |
| if (0 == ::QueryPerformanceCounter(&this->fStartWall)) { |
| this->fStartWall.QuadPart = 0; |
| } |
| } |
| void BenchSysTimer::startCpu() { |
| this->fStartCpu = winCpuTime(); |
| } |
| |
| double BenchSysTimer::endCpu() { |
| ULONGLONG end_cpu = winCpuTime(); |
| return (end_cpu - this->fStartCpu) / 10000; |
| } |
| double BenchSysTimer::endWall() { |
| LARGE_INTEGER end_wall; |
| if (0 == ::QueryPerformanceCounter(&end_wall)) { |
| end_wall.QuadPart = 0; |
| } |
| |
| LARGE_INTEGER ticks_elapsed; |
| ticks_elapsed.QuadPart = end_wall.QuadPart - this->fStartWall.QuadPart; |
| |
| LARGE_INTEGER frequency; |
| if (0 == ::QueryPerformanceFrequency(&frequency)) { |
| return 0; |
| } else { |
| return (double)ticks_elapsed.QuadPart / frequency.QuadPart * 1000; |
| } |
| } |