skia2/tools/timer/Timer.cpp
mtklein d1f7f990a1 Have DM and nanobench display times in minutes when they're above 60 seconds.
Getting tired of trying to divide in my head when reading Valgrind logs.

BUG=skia:

Review URL: https://codereview.chromium.org/1004703002
2015-03-12 10:29:32 -07:00

66 lines
1.5 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 "Timer.h"
Timer::Timer(SkGLContext* gl)
: fCpu(-1.0)
, fWall(-1.0)
, fTruncatedCpu(-1.0)
, fTruncatedWall(-1.0)
, fGpu(-1.0)
#if SK_SUPPORT_GPU
, fGpuTimer(gl)
#endif
{}
void Timer::start() {
fSysTimer.startWall();
fTruncatedSysTimer.startWall();
#if SK_SUPPORT_GPU
fGpuTimer.start();
#endif
fSysTimer.startCpu();
fTruncatedSysTimer.startCpu();
}
void Timer::end() {
fCpu = fSysTimer.endCpu();
#if SK_SUPPORT_GPU
//It is important to stop the cpu clocks first,
//as the following will cpu wait for the gpu to finish.
fGpu = fGpuTimer.end();
#endif
fWall = fSysTimer.endWall();
}
void Timer::truncatedEnd() {
fTruncatedCpu = fTruncatedSysTimer.endCpu();
fTruncatedWall = fTruncatedSysTimer.endWall();
}
WallTimer::WallTimer() : fWall(-1.0) {}
void WallTimer::start() {
fSysTimer.startWall();
}
void WallTimer::end() {
fWall = fSysTimer.endWall();
}
SkString HumanizeMs(double ms) {
if (ms > 60e+3) return SkStringPrintf("%.3gm", ms/60e+3);
if (ms > 1e+3) return SkStringPrintf("%.3gs", ms/1e+3);
if (ms < 1e-3) return SkStringPrintf("%.3gns", ms*1e+6);
#ifdef SK_BUILD_FOR_WIN
if (ms < 1) return SkStringPrintf("%.3gus", ms*1e+3);
#else
if (ms < 1) return SkStringPrintf("%.3gµs", ms*1e+3);
#endif
return SkStringPrintf("%.3gms", ms);
}