c961442926
git-svn-id: http://skia.googlecode.com/svn/trunk@2503 2bbb7eff-a529-9590-31e7-b0007b416f81
65 lines
1.7 KiB
C++
65 lines
1.7 KiB
C++
|
|
/*
|
|
* Copyright 2011 Google Inc.
|
|
*
|
|
* Use of this source code is governed by a BSD-style license that can be
|
|
* found in the LICENSE file.
|
|
*/
|
|
#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 static_cast<double>((end_cpu - this->fStartCpu)) / 10000.0L;
|
|
}
|
|
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 0.0L;
|
|
} else {
|
|
return static_cast<double>(ticks_elapsed.QuadPart)
|
|
/ static_cast<double>(frequency.QuadPart)
|
|
* 1000.0L;
|
|
}
|
|
}
|