90c471e73f
- use high-precision wall timer only - warm caches once before measuring - measure independent samples, calculating statistics - add --verbose to control how much data we output Also removed some unloved features from bench_record. BUG=skia: R=jcgregorio@google.com, mtklein@google.com Author: mtklein@chromium.org Review URL: https://codereview.chromium.org/338203002
95 lines
2.1 KiB
C++
95 lines
2.1 KiB
C++
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/*
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* Copyright 2011 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "BenchTimer.h"
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#if defined(SK_BUILD_FOR_WIN32)
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#include "BenchSysTimer_windows.h"
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#elif defined(SK_BUILD_FOR_MAC)
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#include "BenchSysTimer_mach.h"
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#elif defined(SK_BUILD_FOR_UNIX) || defined(SK_BUILD_FOR_ANDROID)
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#include "BenchSysTimer_posix.h"
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#else
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#include "BenchSysTimer_c.h"
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#endif
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#if SK_SUPPORT_GPU
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#include "BenchGpuTimer_gl.h"
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#endif
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BenchTimer::BenchTimer(SkGLContextHelper* gl)
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: fCpu(-1.0)
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, fWall(-1.0)
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, fTruncatedCpu(-1.0)
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, fTruncatedWall(-1.0)
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, fGpu(-1.0)
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{
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fSysTimer = new BenchSysTimer();
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fTruncatedSysTimer = new BenchSysTimer();
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#if SK_SUPPORT_GPU
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if (gl) {
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fGpuTimer = new BenchGpuTimer(gl);
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} else {
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fGpuTimer = NULL;
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}
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#endif
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}
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BenchTimer::~BenchTimer() {
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delete fSysTimer;
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delete fTruncatedSysTimer;
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#if SK_SUPPORT_GPU
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delete fGpuTimer;
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#endif
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}
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void BenchTimer::start(double durationScale) {
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fDurationScale = durationScale;
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fSysTimer->startWall();
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fTruncatedSysTimer->startWall();
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#if SK_SUPPORT_GPU
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if (fGpuTimer) {
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fGpuTimer->startGpu();
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}
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#endif
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fSysTimer->startCpu();
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fTruncatedSysTimer->startCpu();
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}
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void BenchTimer::end() {
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fCpu = fSysTimer->endCpu() * fDurationScale;
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#if SK_SUPPORT_GPU
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//It is important to stop the cpu clocks first,
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//as the following will cpu wait for the gpu to finish.
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if (fGpuTimer) {
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fGpu = fGpuTimer->endGpu() * fDurationScale;
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}
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#endif
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fWall = fSysTimer->endWall() * fDurationScale;
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}
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void BenchTimer::truncatedEnd() {
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fTruncatedCpu = fTruncatedSysTimer->endCpu() * fDurationScale;
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fTruncatedWall = fTruncatedSysTimer->endWall() * fDurationScale;
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}
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WallTimer::WallTimer() : fWall(-1.0), fSysTimer(new BenchSysTimer) {}
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WallTimer::~WallTimer() {
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delete fSysTimer;
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}
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void WallTimer::start(double durationScale) {
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fDurationScale = durationScale;
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fSysTimer->startWall();
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}
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void WallTimer::end() {
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fWall = fSysTimer->endWall() * fDurationScale;
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}
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