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1 /*
2  * Copyright 2014 Google Inc.
3  *
4  * Use of this source code is governed by a BSD-style license that can be
5  * found in the LICENSE file.
6  */
7 
8 #include <ctype.h>
9 
10 #include "nanobench.h"
11 
12 #include "AndroidCodecBench.h"
13 #include "Benchmark.h"
14 #include "BitmapRegionDecoderBench.h"
15 #include "CodecBench.h"
16 #include "CodecBenchPriv.h"
17 #include "ColorCodecBench.h"
18 #include "CrashHandler.h"
19 #include "GMBench.h"
20 #include "ProcStats.h"
21 #include "RecordingBench.h"
22 #include "ResultsWriter.h"
23 #include "SKPAnimationBench.h"
24 #include "SKPBench.h"
25 #include "SkAndroidCodec.h"
26 #include "SkAutoMalloc.h"
27 #include "SkBBoxHierarchy.h"
28 #include "SkBitmapRegionDecoder.h"
29 #include "SkCanvas.h"
30 #include "SkCodec.h"
31 #include "SkCommonFlags.h"
32 #include "SkCommonFlagsConfig.h"
33 #include "SkCommonFlagsPathRenderer.h"
34 #include "SkData.h"
35 #include "SkDebugfTracer.h"
36 #include "SkGraphics.h"
37 #include "SkLeanWindows.h"
38 #include "SkOSFile.h"
39 #include "SkOSPath.h"
40 #include "SkPictureRecorder.h"
41 #include "SkSVGDOM.h"
42 #include "SkScan.h"
43 #include "SkString.h"
44 #include "SkSurface.h"
45 #include "SkTaskGroup.h"
46 #include "SkThreadUtils.h"
47 #include "Stats.h"
48 #include "ThermalManager.h"
49 #include "ios_utils.h"
50 
51 #include <stdlib.h>
52 
53 extern bool gSkForceRasterPipelineBlitter;
54 
55 #ifndef SK_BUILD_FOR_WIN32
56     #include <unistd.h>
57 #endif
58 
59 #if SK_SUPPORT_GPU
60     #include "gl/GrGLDefines.h"
61     #include "GrCaps.h"
62     #include "GrContextFactory.h"
63     #include "gl/GrGLUtil.h"
64     #include "SkGr.h"
65     using sk_gpu_test::GrContextFactory;
66     using sk_gpu_test::TestContext;
67     std::unique_ptr<GrContextFactory> gGrFactory;
68 #endif
69 
70     struct GrContextOptions;
71 
72 static const int kAutoTuneLoops = 0;
73 
74 #if !defined(__has_feature)
75     #define  __has_feature(x) 0
76 #endif
77 
78 static const int kDefaultLoops =
79 #if defined(SK_DEBUG) || __has_feature(address_sanitizer)
80     1;
81 #else
82     kAutoTuneLoops;
83 #endif
84 
loops_help_txt()85 static SkString loops_help_txt() {
86     SkString help;
87     help.printf("Number of times to run each bench. Set this to %d to auto-"
88                 "tune for each bench. Timings are only reported when auto-tuning.",
89                 kAutoTuneLoops);
90     return help;
91 }
92 
to_string(int n)93 static SkString to_string(int n) {
94     SkString str;
95     str.appendS32(n);
96     return str;
97 }
98 
99 DEFINE_int32(loops, kDefaultLoops, loops_help_txt().c_str());
100 
101 DEFINE_int32(samples, 10, "Number of samples to measure for each bench.");
102 DEFINE_int32(ms, 0, "If >0, run each bench for this many ms instead of obeying --samples.");
103 DEFINE_int32(overheadLoops, 100000, "Loops to estimate timer overhead.");
104 DEFINE_double(overheadGoal, 0.0001,
105               "Loop until timer overhead is at most this fraction of our measurments.");
106 DEFINE_double(gpuMs, 5, "Target bench time in millseconds for GPU.");
107 DEFINE_int32(gpuFrameLag, 5, "If unknown, estimated maximum number of frames GPU allows to lag.");
108 
109 DEFINE_string(outResultsFile, "", "If given, write results here as JSON.");
110 DEFINE_int32(maxCalibrationAttempts, 3,
111              "Try up to this many times to guess loops for a bench, or skip the bench.");
112 DEFINE_int32(maxLoops, 1000000, "Never run a bench more times than this.");
113 DEFINE_string(clip, "0,0,1000,1000", "Clip for SKPs.");
114 DEFINE_string(scales, "1.0", "Space-separated scales for SKPs.");
115 DEFINE_string(zoom, "1.0,0", "Comma-separated zoomMax,zoomPeriodMs factors for a periodic SKP zoom "
116                              "function that ping-pongs between 1.0 and zoomMax.");
117 DEFINE_bool(bbh, true, "Build a BBH for SKPs?");
118 DEFINE_bool(lite, false, "Use SkLiteRecorder in recording benchmarks?");
119 DEFINE_bool(mpd, true, "Use MultiPictureDraw for the SKPs?");
120 DEFINE_bool(loopSKP, true, "Loop SKPs like we do for micro benches?");
121 DEFINE_int32(flushEvery, 10, "Flush --outResultsFile every Nth run.");
122 DEFINE_bool(resetGpuContext, true, "Reset the GrContext before running each test.");
123 DEFINE_bool(gpuStats, false, "Print GPU stats after each gpu benchmark?");
124 DEFINE_bool(gpuStatsDump, false, "Dump GPU states after each benchmark to json");
125 DEFINE_bool(keepAlive, false, "Print a message every so often so that we don't time out");
126 DEFINE_string(useThermalManager, "0,1,10,1000", "enabled,threshold,sleepTimeMs,TimeoutMs for "
127                                                 "thermalManager\n");
128 DEFINE_bool(csv, false, "Print status in CSV format");
129 DEFINE_string(sourceType, "",
130         "Apply usual --match rules to source type: bench, gm, skp, image, etc.");
131 DEFINE_string(benchType,  "",
132         "Apply usual --match rules to bench type: micro, recording, piping, playback, skcodec, etc.");
133 
134 DEFINE_bool(forceRasterPipeline, false, "sets gSkForceRasterPipelineBlitter");
135 
136 #if SK_SUPPORT_GPU
137 DEFINE_pathrenderer_flag;
138 #endif
139 
now_ms()140 static double now_ms() { return SkTime::GetNSecs() * 1e-6; }
141 
humanize(double ms)142 static SkString humanize(double ms) {
143     if (FLAGS_verbose) return SkStringPrintf("%llu", (uint64_t)(ms*1e6));
144     return HumanizeMs(ms);
145 }
146 #define HUMANIZE(ms) humanize(ms).c_str()
147 
init(SkImageInfo info,Benchmark * bench)148 bool Target::init(SkImageInfo info, Benchmark* bench) {
149     if (Benchmark::kRaster_Backend == config.backend) {
150         this->surface = SkSurface::MakeRaster(info);
151         if (!this->surface) {
152             return false;
153         }
154     }
155     return true;
156 }
capturePixels(SkBitmap * bmp)157 bool Target::capturePixels(SkBitmap* bmp) {
158     SkCanvas* canvas = this->getCanvas();
159     if (!canvas) {
160         return false;
161     }
162     bmp->allocPixels(canvas->imageInfo());
163     if (!canvas->readPixels(*bmp, 0, 0)) {
164         SkDebugf("Can't read canvas pixels.\n");
165         return false;
166     }
167     return true;
168 }
169 
170 #if SK_SUPPORT_GPU
171 struct GPUTarget : public Target {
GPUTargetGPUTarget172     explicit GPUTarget(const Config& c) : Target(c), context(nullptr) { }
173     TestContext* context;
174 
setupGPUTarget175     void setup() override {
176         this->context->makeCurrent();
177         // Make sure we're done with whatever came before.
178         this->context->finish();
179     }
endTimingGPUTarget180     void endTiming() override {
181         if (this->context) {
182             this->context->waitOnSyncOrSwap();
183         }
184     }
fenceGPUTarget185     void fence() override {
186         this->context->finish();
187     }
188 
needsFrameTimingGPUTarget189     bool needsFrameTiming(int* maxFrameLag) const override {
190         if (!this->context->getMaxGpuFrameLag(maxFrameLag)) {
191             // Frame lag is unknown.
192             *maxFrameLag = FLAGS_gpuFrameLag;
193         }
194         return true;
195     }
initGPUTarget196     bool init(SkImageInfo info, Benchmark* bench) override {
197         uint32_t flags = this->config.useDFText ? SkSurfaceProps::kUseDeviceIndependentFonts_Flag :
198                                                   0;
199         SkSurfaceProps props(flags, SkSurfaceProps::kLegacyFontHost_InitType);
200         this->surface = SkSurface::MakeRenderTarget(gGrFactory->get(this->config.ctxType,
201                                                                     this->config.ctxOverrides),
202                                                          SkBudgeted::kNo, info,
203                                                          this->config.samples, &props);
204         this->context = gGrFactory->getContextInfo(this->config.ctxType,
205                                                    this->config.ctxOverrides).testContext();
206         if (!this->surface.get()) {
207             return false;
208         }
209         if (!this->context->fenceSyncSupport()) {
210             SkDebugf("WARNING: GL context for config \"%s\" does not support fence sync. "
211                      "Timings might not be accurate.\n", this->config.name.c_str());
212         }
213         return true;
214     }
fillOptionsGPUTarget215     void fillOptions(ResultsWriter* log) override {
216         const GrGLubyte* version;
217         if (this->context->backend() == kOpenGL_GrBackend) {
218             const GrGLInterface* gl =
219                     reinterpret_cast<const GrGLInterface*>(this->context->backendContext());
220             GR_GL_CALL_RET(gl, version, GetString(GR_GL_VERSION));
221             log->configOption("GL_VERSION", (const char*)(version));
222 
223             GR_GL_CALL_RET(gl, version, GetString(GR_GL_RENDERER));
224             log->configOption("GL_RENDERER", (const char*) version);
225 
226             GR_GL_CALL_RET(gl, version, GetString(GR_GL_VENDOR));
227             log->configOption("GL_VENDOR", (const char*) version);
228 
229             GR_GL_CALL_RET(gl, version, GetString(GR_GL_SHADING_LANGUAGE_VERSION));
230             log->configOption("GL_SHADING_LANGUAGE_VERSION", (const char*) version);
231         }
232     }
233 };
234 
235 #endif
236 
time(int loops,Benchmark * bench,Target * target)237 static double time(int loops, Benchmark* bench, Target* target) {
238     SkCanvas* canvas = target->getCanvas();
239     if (canvas) {
240         canvas->clear(SK_ColorWHITE);
241     }
242     bench->preDraw(canvas);
243     double start = now_ms();
244     canvas = target->beginTiming(canvas);
245     bench->draw(loops, canvas);
246     if (canvas) {
247         canvas->flush();
248     }
249     target->endTiming();
250     double elapsed = now_ms() - start;
251     bench->postDraw(canvas);
252     return elapsed;
253 }
254 
estimate_timer_overhead()255 static double estimate_timer_overhead() {
256     double overhead = 0;
257     for (int i = 0; i < FLAGS_overheadLoops; i++) {
258         double start = now_ms();
259         overhead += now_ms() - start;
260     }
261     return overhead / FLAGS_overheadLoops;
262 }
263 
detect_forever_loops(int loops)264 static int detect_forever_loops(int loops) {
265     // look for a magic run-forever value
266     if (loops < 0) {
267         loops = SK_MaxS32;
268     }
269     return loops;
270 }
271 
clamp_loops(int loops)272 static int clamp_loops(int loops) {
273     if (loops < 1) {
274         SkDebugf("ERROR: clamping loops from %d to 1. "
275                  "There's probably something wrong with the bench.\n", loops);
276         return 1;
277     }
278     if (loops > FLAGS_maxLoops) {
279         SkDebugf("WARNING: clamping loops from %d to FLAGS_maxLoops, %d.\n", loops, FLAGS_maxLoops);
280         return FLAGS_maxLoops;
281     }
282     return loops;
283 }
284 
write_canvas_png(Target * target,const SkString & filename)285 static bool write_canvas_png(Target* target, const SkString& filename) {
286 
287     if (filename.isEmpty()) {
288         return false;
289     }
290     if (target->getCanvas() &&
291         kUnknown_SkColorType == target->getCanvas()->imageInfo().colorType()) {
292         return false;
293     }
294 
295     SkBitmap bmp;
296 
297     if (!target->capturePixels(&bmp)) {
298         return false;
299     }
300 
301     SkString dir = SkOSPath::Dirname(filename.c_str());
302     if (!sk_mkdir(dir.c_str())) {
303         SkDebugf("Can't make dir %s.\n", dir.c_str());
304         return false;
305     }
306     SkFILEWStream stream(filename.c_str());
307     if (!stream.isValid()) {
308         SkDebugf("Can't write %s.\n", filename.c_str());
309         return false;
310     }
311     if (!SkEncodeImage(&stream, bmp, SkEncodedImageFormat::kPNG, 100)) {
312         SkDebugf("Can't encode a PNG.\n");
313         return false;
314     }
315     return true;
316 }
317 
318 static int kFailedLoops = -2;
setup_cpu_bench(const double overhead,Target * target,Benchmark * bench)319 static int setup_cpu_bench(const double overhead, Target* target, Benchmark* bench) {
320     // First figure out approximately how many loops of bench it takes to make overhead negligible.
321     double bench_plus_overhead = 0.0;
322     int round = 0;
323     int loops = bench->calculateLoops(FLAGS_loops);
324     if (kAutoTuneLoops == loops) {
325         while (bench_plus_overhead < overhead) {
326             if (round++ == FLAGS_maxCalibrationAttempts) {
327                 SkDebugf("WARNING: Can't estimate loops for %s (%s vs. %s); skipping.\n",
328                          bench->getUniqueName(), HUMANIZE(bench_plus_overhead), HUMANIZE(overhead));
329                 return kFailedLoops;
330             }
331             bench_plus_overhead = time(1, bench, target);
332         }
333     }
334 
335     // Later we'll just start and stop the timer once but loop N times.
336     // We'll pick N to make timer overhead negligible:
337     //
338     //          overhead
339     //  -------------------------  < FLAGS_overheadGoal
340     //  overhead + N * Bench Time
341     //
342     // where bench_plus_overhead ~=~ overhead + Bench Time.
343     //
344     // Doing some math, we get:
345     //
346     //  (overhead / FLAGS_overheadGoal) - overhead
347     //  ------------------------------------------  < N
348     //       bench_plus_overhead - overhead)
349     //
350     // Luckily, this also works well in practice. :)
351     if (kAutoTuneLoops == loops) {
352         const double numer = overhead / FLAGS_overheadGoal - overhead;
353         const double denom = bench_plus_overhead - overhead;
354         loops = (int)ceil(numer / denom);
355         loops = clamp_loops(loops);
356     } else {
357         loops = detect_forever_loops(loops);
358     }
359 
360     return loops;
361 }
362 
setup_gpu_bench(Target * target,Benchmark * bench,int maxGpuFrameLag)363 static int setup_gpu_bench(Target* target, Benchmark* bench, int maxGpuFrameLag) {
364     // First, figure out how many loops it'll take to get a frame up to FLAGS_gpuMs.
365     int loops = bench->calculateLoops(FLAGS_loops);
366     if (kAutoTuneLoops == loops) {
367         loops = 1;
368         double elapsed = 0;
369         do {
370             if (1<<30 == loops) {
371                 // We're about to wrap.  Something's wrong with the bench.
372                 loops = 0;
373                 break;
374             }
375             loops *= 2;
376             // If the GPU lets frames lag at all, we need to make sure we're timing
377             // _this_ round, not still timing last round.
378             for (int i = 0; i < maxGpuFrameLag; i++) {
379                 elapsed = time(loops, bench, target);
380             }
381         } while (elapsed < FLAGS_gpuMs);
382 
383         // We've overshot at least a little.  Scale back linearly.
384         loops = (int)ceil(loops * FLAGS_gpuMs / elapsed);
385         loops = clamp_loops(loops);
386 
387         // Make sure we're not still timing our calibration.
388         target->fence();
389     } else {
390         loops = detect_forever_loops(loops);
391     }
392 
393     // Pretty much the same deal as the calibration: do some warmup to make
394     // sure we're timing steady-state pipelined frames.
395     for (int i = 0; i < maxGpuFrameLag - 1; i++) {
396         time(loops, bench, target);
397     }
398 
399     return loops;
400 }
401 
402 #if SK_SUPPORT_GPU
403 #define kBogusContextType GrContextFactory::kGL_ContextType
404 #define kBogusContextOverrides GrContextFactory::ContextOverrides::kNone
405 #else
406 #define kBogusContextType 0
407 #define kBogusContextOverrides 0
408 #endif
409 
create_config(const SkCommandLineConfig * config,SkTArray<Config> * configs)410 static void create_config(const SkCommandLineConfig* config, SkTArray<Config>* configs) {
411 
412 #if SK_SUPPORT_GPU
413     if (const auto* gpuConfig = config->asConfigGpu()) {
414         if (!FLAGS_gpu)
415             return;
416 
417         const auto ctxType = gpuConfig->getContextType();
418         const auto ctxOverrides = gpuConfig->getContextOverrides();
419         const auto sampleCount = gpuConfig->getSamples();
420         const auto colorType = gpuConfig->getColorType();
421         auto colorSpace = gpuConfig->getColorSpace();
422 
423         if (const GrContext* ctx = gGrFactory->get(ctxType, ctxOverrides)) {
424             GrPixelConfig grPixConfig = SkImageInfo2GrPixelConfig(colorType, colorSpace,
425                                                                   *ctx->caps());
426             int supportedSampleCount = ctx->caps()->getSampleCount(sampleCount, grPixConfig);
427             if (sampleCount != supportedSampleCount) {
428                 SkDebugf("Configuration sample count %d is not a supported sample count.\n",
429                     sampleCount);
430                 return;
431             }
432         } else {
433             SkDebugf("No context was available matching config type and options.\n");
434             return;
435         }
436 
437         Config target = {
438             gpuConfig->getTag(),
439             Benchmark::kGPU_Backend,
440             colorType,
441             kPremul_SkAlphaType,
442             sk_ref_sp(colorSpace),
443             sampleCount,
444             ctxType,
445             ctxOverrides,
446             gpuConfig->getUseDIText()
447         };
448 
449         configs->push_back(target);
450         return;
451     }
452 #endif
453 
454     #define CPU_CONFIG(name, backend, color, alpha, colorSpace)                \
455         if (config->getTag().equals(#name)) {                                  \
456             Config config = {                                                  \
457                 SkString(#name), Benchmark::backend, color, alpha, colorSpace, \
458                 0, kBogusContextType, kBogusContextOverrides, false            \
459             };                                                                 \
460             configs->push_back(config);                                        \
461             return;                                                            \
462         }
463 
464     if (FLAGS_cpu) {
465         CPU_CONFIG(nonrendering, kNonRendering_Backend,
466                    kUnknown_SkColorType, kUnpremul_SkAlphaType, nullptr)
467 
468         CPU_CONFIG(8888, kRaster_Backend,
469                    kN32_SkColorType, kPremul_SkAlphaType, nullptr)
470         CPU_CONFIG(565,  kRaster_Backend,
471                    kRGB_565_SkColorType, kOpaque_SkAlphaType, nullptr)
472         auto srgbColorSpace = SkColorSpace::MakeSRGB();
473         CPU_CONFIG(srgb, kRaster_Backend,
474                    kN32_SkColorType,  kPremul_SkAlphaType, srgbColorSpace)
475         auto srgbLinearColorSpace = SkColorSpace::MakeSRGBLinear();
476         CPU_CONFIG(f16,  kRaster_Backend,
477                    kRGBA_F16_SkColorType, kPremul_SkAlphaType, srgbLinearColorSpace)
478     }
479 
480     #undef CPU_CONFIG
481 }
482 
483 // Append all configs that are enabled and supported.
create_configs(SkTArray<Config> * configs)484 void create_configs(SkTArray<Config>* configs) {
485     SkCommandLineConfigArray array;
486     ParseConfigs(FLAGS_config, &array);
487     for (int i = 0; i < array.count(); ++i) {
488         create_config(array[i].get(), configs);
489     }
490 }
491 
492 // disable warning : switch statement contains default but no 'case' labels
493 #if defined _WIN32
494 #pragma warning ( push )
495 #pragma warning ( disable : 4065 )
496 #endif
497 
498 // If bench is enabled for config, returns a Target* for it, otherwise nullptr.
is_enabled(Benchmark * bench,const Config & config)499 static Target* is_enabled(Benchmark* bench, const Config& config) {
500     if (!bench->isSuitableFor(config.backend)) {
501         return nullptr;
502     }
503 
504     SkImageInfo info = SkImageInfo::Make(bench->getSize().fX, bench->getSize().fY,
505                                          config.color, config.alpha, config.colorSpace);
506 
507     Target* target = nullptr;
508 
509     switch (config.backend) {
510 #if SK_SUPPORT_GPU
511     case Benchmark::kGPU_Backend:
512         target = new GPUTarget(config);
513         break;
514 #endif
515     default:
516         target = new Target(config);
517         break;
518     }
519 
520     if (!target->init(info, bench)) {
521         delete target;
522         return nullptr;
523     }
524     return target;
525 }
526 
527 #if defined _WIN32
528 #pragma warning ( pop )
529 #endif
530 
valid_brd_bench(sk_sp<SkData> encoded,SkColorType colorType,uint32_t sampleSize,uint32_t minOutputSize,int * width,int * height)531 static bool valid_brd_bench(sk_sp<SkData> encoded, SkColorType colorType, uint32_t sampleSize,
532         uint32_t minOutputSize, int* width, int* height) {
533     std::unique_ptr<SkBitmapRegionDecoder> brd(
534             SkBitmapRegionDecoder::Create(encoded, SkBitmapRegionDecoder::kAndroidCodec_Strategy));
535     if (nullptr == brd.get()) {
536         // This is indicates that subset decoding is not supported for a particular image format.
537         return false;
538     }
539 
540     if (sampleSize * minOutputSize > (uint32_t) brd->width() || sampleSize * minOutputSize >
541             (uint32_t) brd->height()) {
542         // This indicates that the image is not large enough to decode a
543         // minOutputSize x minOutputSize subset at the given sampleSize.
544         return false;
545     }
546 
547     // Set the image width and height.  The calling code will use this to choose subsets to decode.
548     *width = brd->width();
549     *height = brd->height();
550     return true;
551 }
552 
cleanup_run(Target * target)553 static void cleanup_run(Target* target) {
554     delete target;
555 #if SK_SUPPORT_GPU
556     if (FLAGS_abandonGpuContext) {
557         gGrFactory->abandonContexts();
558     }
559     if (FLAGS_resetGpuContext || FLAGS_abandonGpuContext) {
560         gGrFactory->destroyContexts();
561     }
562 #endif
563 }
564 
collect_files(const SkCommandLineFlags::StringArray & paths,const char * ext,SkTArray<SkString> * list)565 static void collect_files(const SkCommandLineFlags::StringArray& paths, const char* ext,
566                           SkTArray<SkString>* list) {
567     for (int i = 0; i < paths.count(); ++i) {
568         if (SkStrEndsWith(paths[i], ext)) {
569             list->push_back(SkString(paths[i]));
570         } else {
571             SkOSFile::Iter it(paths[i], ext);
572             SkString path;
573             while (it.next(&path)) {
574                 list->push_back(SkOSPath::Join(paths[i], path.c_str()));
575             }
576         }
577     }
578 }
579 
580 class BenchmarkStream {
581 public:
BenchmarkStream()582     BenchmarkStream() : fBenches(BenchRegistry::Head())
583                       , fGMs(skiagm::GMRegistry::Head())
584                       , fCurrentRecording(0)
585                       , fCurrentPiping(0)
586                       , fCurrentScale(0)
587                       , fCurrentSKP(0)
588                       , fCurrentSVG(0)
589                       , fCurrentUseMPD(0)
590                       , fCurrentCodec(0)
591                       , fCurrentAndroidCodec(0)
592                       , fCurrentBRDImage(0)
593                       , fCurrentColorImage(0)
594                       , fCurrentColorType(0)
595                       , fCurrentAlphaType(0)
596                       , fCurrentSubsetType(0)
597                       , fCurrentSampleSize(0)
598                       , fCurrentAnimSKP(0) {
599         collect_files(FLAGS_skps, ".skp", &fSKPs);
600         collect_files(FLAGS_svgs, ".svg", &fSVGs);
601 
602         if (4 != sscanf(FLAGS_clip[0], "%d,%d,%d,%d",
603                         &fClip.fLeft, &fClip.fTop, &fClip.fRight, &fClip.fBottom)) {
604             SkDebugf("Can't parse %s from --clip as an SkIRect.\n", FLAGS_clip[0]);
605             exit(1);
606         }
607 
608         for (int i = 0; i < FLAGS_scales.count(); i++) {
609             if (1 != sscanf(FLAGS_scales[i], "%f", &fScales.push_back())) {
610                 SkDebugf("Can't parse %s from --scales as an SkScalar.\n", FLAGS_scales[i]);
611                 exit(1);
612             }
613         }
614 
615         if (2 != sscanf(FLAGS_zoom[0], "%f,%lf", &fZoomMax, &fZoomPeriodMs)) {
616             SkDebugf("Can't parse %s from --zoom as a zoomMax,zoomPeriodMs.\n", FLAGS_zoom[0]);
617             exit(1);
618         }
619 
620         if (FLAGS_mpd) {
621             fUseMPDs.push_back() = true;
622         }
623         fUseMPDs.push_back() = false;
624 
625         // Prepare the images for decoding
626         if (!CollectImages(FLAGS_images, &fImages)) {
627             exit(1);
628         }
629         if (!CollectImages(FLAGS_colorImages, &fColorImages)) {
630             exit(1);
631         }
632 
633         // Choose the candidate color types for image decoding
634         fColorTypes.push_back(kN32_SkColorType);
635         if (!FLAGS_simpleCodec) {
636             fColorTypes.push_back(kRGB_565_SkColorType);
637             fColorTypes.push_back(kAlpha_8_SkColorType);
638             fColorTypes.push_back(kGray_8_SkColorType);
639         }
640     }
641 
ReadPicture(const char * path)642     static sk_sp<SkPicture> ReadPicture(const char* path) {
643         // Not strictly necessary, as it will be checked again later,
644         // but helps to avoid a lot of pointless work if we're going to skip it.
645         if (SkCommandLineFlags::ShouldSkip(FLAGS_match, SkOSPath::Basename(path).c_str())) {
646             return nullptr;
647         }
648 
649         std::unique_ptr<SkStream> stream = SkStream::MakeFromFile(path);
650         if (!stream) {
651             SkDebugf("Could not read %s.\n", path);
652             return nullptr;
653         }
654 
655         return SkPicture::MakeFromStream(stream.get());
656     }
657 
ReadSVGPicture(const char * path)658     static sk_sp<SkPicture> ReadSVGPicture(const char* path) {
659         SkFILEStream stream(path);
660         if (!stream.isValid()) {
661             SkDebugf("Could not read %s.\n", path);
662             return nullptr;
663         }
664 
665         sk_sp<SkSVGDOM> svgDom = SkSVGDOM::MakeFromStream(stream);
666         if (!svgDom) {
667             SkDebugf("Could not parse %s.\n", path);
668             return nullptr;
669         }
670 
671         // Use the intrinsic SVG size if available, otherwise fall back to a default value.
672         static const SkSize kDefaultContainerSize = SkSize::Make(128, 128);
673         if (svgDom->containerSize().isEmpty()) {
674             svgDom->setContainerSize(kDefaultContainerSize);
675         }
676 
677         SkPictureRecorder recorder;
678         svgDom->render(recorder.beginRecording(svgDom->containerSize().width(),
679                                                svgDom->containerSize().height()));
680         return recorder.finishRecordingAsPicture();
681     }
682 
next()683     Benchmark* next() {
684         std::unique_ptr<Benchmark> bench;
685         do {
686             bench.reset(this->rawNext());
687             if (!bench) {
688                 return nullptr;
689             }
690         } while(SkCommandLineFlags::ShouldSkip(FLAGS_sourceType, fSourceType) ||
691                 SkCommandLineFlags::ShouldSkip(FLAGS_benchType,  fBenchType));
692         return bench.release();
693     }
694 
rawNext()695     Benchmark* rawNext() {
696         if (fBenches) {
697             Benchmark* bench = fBenches->factory()(nullptr);
698             fBenches = fBenches->next();
699             fSourceType = "bench";
700             fBenchType  = "micro";
701             return bench;
702         }
703 
704         while (fGMs) {
705             std::unique_ptr<skiagm::GM> gm(fGMs->factory()(nullptr));
706             fGMs = fGMs->next();
707             if (gm->runAsBench()) {
708                 fSourceType = "gm";
709                 fBenchType  = "micro";
710                 return new GMBench(gm.release());
711             }
712         }
713 
714         // First add all .skps as RecordingBenches.
715         while (fCurrentRecording < fSKPs.count()) {
716             const SkString& path = fSKPs[fCurrentRecording++];
717             sk_sp<SkPicture> pic = ReadPicture(path.c_str());
718             if (!pic) {
719                 continue;
720             }
721             SkString name = SkOSPath::Basename(path.c_str());
722             fSourceType = "skp";
723             fBenchType  = "recording";
724             fSKPBytes = static_cast<double>(pic->approximateBytesUsed());
725             fSKPOps   = pic->approximateOpCount();
726             return new RecordingBench(name.c_str(), pic.get(), FLAGS_bbh, FLAGS_lite);
727         }
728 
729         // Add all .skps as PipeBenches.
730         while (fCurrentPiping < fSKPs.count()) {
731             const SkString& path = fSKPs[fCurrentPiping++];
732             sk_sp<SkPicture> pic = ReadPicture(path.c_str());
733             if (!pic) {
734                 continue;
735             }
736             SkString name = SkOSPath::Basename(path.c_str());
737             fSourceType = "skp";
738             fBenchType  = "piping";
739             fSKPBytes = static_cast<double>(pic->approximateBytesUsed());
740             fSKPOps   = pic->approximateOpCount();
741             return new PipingBench(name.c_str(), pic.get());
742         }
743 
744         // Then once each for each scale as SKPBenches (playback).
745         while (fCurrentScale < fScales.count()) {
746             while (fCurrentSKP < fSKPs.count()) {
747                 const SkString& path = fSKPs[fCurrentSKP];
748                 sk_sp<SkPicture> pic = ReadPicture(path.c_str());
749                 if (!pic) {
750                     fCurrentSKP++;
751                     continue;
752                 }
753 
754                 while (fCurrentUseMPD < fUseMPDs.count()) {
755                     if (FLAGS_bbh) {
756                         // The SKP we read off disk doesn't have a BBH.  Re-record so it grows one.
757                         SkRTreeFactory factory;
758                         SkPictureRecorder recorder;
759                         pic->playback(recorder.beginRecording(pic->cullRect().width(),
760                                                               pic->cullRect().height(),
761                                                               &factory,
762                                                               0));
763                         pic = recorder.finishRecordingAsPicture();
764                     }
765                     SkString name = SkOSPath::Basename(path.c_str());
766                     fSourceType = "skp";
767                     fBenchType = "playback";
768                     return new SKPBench(name.c_str(), pic.get(), fClip, fScales[fCurrentScale],
769                                         fUseMPDs[fCurrentUseMPD++], FLAGS_loopSKP);
770                 }
771                 fCurrentUseMPD = 0;
772                 fCurrentSKP++;
773             }
774 
775             while (fCurrentSVG++ < fSVGs.count()) {
776                 const char* path = fSVGs[fCurrentSVG - 1].c_str();
777                 if (sk_sp<SkPicture> pic = ReadSVGPicture(path)) {
778                     fSourceType = "svg";
779                     fBenchType = "playback";
780                     return new SKPBench(SkOSPath::Basename(path).c_str(), pic.get(), fClip,
781                                         fScales[fCurrentScale], false, FLAGS_loopSKP);
782                 }
783             }
784 
785             fCurrentSKP = 0;
786             fCurrentSVG = 0;
787             fCurrentScale++;
788         }
789 
790         // Now loop over each skp again if we have an animation
791         if (fZoomMax != 1.0f && fZoomPeriodMs > 0) {
792             while (fCurrentAnimSKP < fSKPs.count()) {
793                 const SkString& path = fSKPs[fCurrentAnimSKP];
794                 sk_sp<SkPicture> pic = ReadPicture(path.c_str());
795                 if (!pic) {
796                     fCurrentAnimSKP++;
797                     continue;
798                 }
799 
800                 fCurrentAnimSKP++;
801                 SkString name = SkOSPath::Basename(path.c_str());
802                 sk_sp<SKPAnimationBench::Animation> animation(
803                     SKPAnimationBench::CreateZoomAnimation(fZoomMax, fZoomPeriodMs));
804                 return new SKPAnimationBench(name.c_str(), pic.get(), fClip, animation.get(),
805                                              FLAGS_loopSKP);
806             }
807         }
808 
809         for (; fCurrentCodec < fImages.count(); fCurrentCodec++) {
810             fSourceType = "image";
811             fBenchType = "skcodec";
812             const SkString& path = fImages[fCurrentCodec];
813             if (SkCommandLineFlags::ShouldSkip(FLAGS_match, path.c_str())) {
814                 continue;
815             }
816             sk_sp<SkData> encoded(SkData::MakeFromFileName(path.c_str()));
817             std::unique_ptr<SkCodec> codec(SkCodec::NewFromData(encoded));
818             if (!codec) {
819                 // Nothing to time.
820                 SkDebugf("Cannot find codec for %s\n", path.c_str());
821                 continue;
822             }
823 
824             while (fCurrentColorType < fColorTypes.count()) {
825                 const SkColorType colorType = fColorTypes[fCurrentColorType];
826 
827                 SkAlphaType alphaType = codec->getInfo().alphaType();
828                 if (FLAGS_simpleCodec) {
829                     if (kUnpremul_SkAlphaType == alphaType) {
830                         alphaType = kPremul_SkAlphaType;
831                     }
832 
833                     fCurrentColorType++;
834                 } else {
835                     switch (alphaType) {
836                         case kOpaque_SkAlphaType:
837                             // We only need to test one alpha type (opaque).
838                             fCurrentColorType++;
839                             break;
840                         case kUnpremul_SkAlphaType:
841                         case kPremul_SkAlphaType:
842                             if (0 == fCurrentAlphaType) {
843                                 // Test unpremul first.
844                                 alphaType = kUnpremul_SkAlphaType;
845                                 fCurrentAlphaType++;
846                             } else {
847                                 // Test premul.
848                                 alphaType = kPremul_SkAlphaType;
849                                 fCurrentAlphaType = 0;
850                                 fCurrentColorType++;
851                             }
852                             break;
853                         default:
854                             SkASSERT(false);
855                             fCurrentColorType++;
856                             break;
857                     }
858                 }
859 
860                 // Make sure we can decode to this color type and alpha type.
861                 SkImageInfo info =
862                         codec->getInfo().makeColorType(colorType).makeAlphaType(alphaType);
863                 const size_t rowBytes = info.minRowBytes();
864                 SkAutoMalloc storage(info.getSafeSize(rowBytes));
865 
866                 const SkCodec::Result result = codec->getPixels(
867                         info, storage.get(), rowBytes);
868                 switch (result) {
869                     case SkCodec::kSuccess:
870                     case SkCodec::kIncompleteInput:
871                         return new CodecBench(SkOSPath::Basename(path.c_str()),
872                                               encoded.get(), colorType, alphaType);
873                     case SkCodec::kInvalidConversion:
874                         // This is okay. Not all conversions are valid.
875                         break;
876                     default:
877                         // This represents some sort of failure.
878                         SkASSERT(false);
879                         break;
880                 }
881             }
882             fCurrentColorType = 0;
883         }
884 
885         // Run AndroidCodecBenches
886         const int sampleSizes[] = { 2, 4, 8 };
887         for (; fCurrentAndroidCodec < fImages.count(); fCurrentAndroidCodec++) {
888             fSourceType = "image";
889             fBenchType = "skandroidcodec";
890 
891             const SkString& path = fImages[fCurrentAndroidCodec];
892             if (SkCommandLineFlags::ShouldSkip(FLAGS_match, path.c_str())) {
893                 continue;
894             }
895             sk_sp<SkData> encoded(SkData::MakeFromFileName(path.c_str()));
896             std::unique_ptr<SkAndroidCodec> codec(SkAndroidCodec::NewFromData(encoded));
897             if (!codec) {
898                 // Nothing to time.
899                 SkDebugf("Cannot find codec for %s\n", path.c_str());
900                 continue;
901             }
902 
903             while (fCurrentSampleSize < (int) SK_ARRAY_COUNT(sampleSizes)) {
904                 int sampleSize = sampleSizes[fCurrentSampleSize];
905                 fCurrentSampleSize++;
906                 if (10 * sampleSize > SkTMin(codec->getInfo().width(), codec->getInfo().height())) {
907                     // Avoid benchmarking scaled decodes of already small images.
908                     break;
909                 }
910 
911                 return new AndroidCodecBench(SkOSPath::Basename(path.c_str()),
912                                              encoded.get(), sampleSize);
913             }
914             fCurrentSampleSize = 0;
915         }
916 
917         // Run the BRDBenches
918         // We intend to create benchmarks that model the use cases in
919         // android/libraries/social/tiledimage.  In this library, an image is decoded in 512x512
920         // tiles.  The image can be translated freely, so the location of a tile may be anywhere in
921         // the image.  For that reason, we will benchmark decodes in five representative locations
922         // in the image.  Additionally, this use case utilizes power of two scaling, so we will
923         // test on power of two sample sizes.  The output tile is always 512x512, so, when a
924         // sampleSize is used, the size of the subset that is decoded is always
925         // (sampleSize*512)x(sampleSize*512).
926         // There are a few good reasons to only test on power of two sample sizes at this time:
927         //     All use cases we are aware of only scale by powers of two.
928         //     PNG decodes use the indicated sampling strategy regardless of the sample size, so
929         //         these tests are sufficient to provide good coverage of our scaling options.
930         const uint32_t brdSampleSizes[] = { 1, 2, 4, 8, 16 };
931         const uint32_t minOutputSize = 512;
932         for (; fCurrentBRDImage < fImages.count(); fCurrentBRDImage++) {
933             fSourceType = "image";
934             fBenchType = "BRD";
935 
936             const SkString& path = fImages[fCurrentBRDImage];
937             if (SkCommandLineFlags::ShouldSkip(FLAGS_match, path.c_str())) {
938                 continue;
939             }
940 
941             while (fCurrentColorType < fColorTypes.count()) {
942                 while (fCurrentSampleSize < (int) SK_ARRAY_COUNT(brdSampleSizes)) {
943                     while (fCurrentSubsetType <= kLastSingle_SubsetType) {
944 
945                         sk_sp<SkData> encoded(SkData::MakeFromFileName(path.c_str()));
946                         const SkColorType colorType = fColorTypes[fCurrentColorType];
947                         uint32_t sampleSize = brdSampleSizes[fCurrentSampleSize];
948                         int currentSubsetType = fCurrentSubsetType++;
949 
950                         int width = 0;
951                         int height = 0;
952                         if (!valid_brd_bench(encoded, colorType, sampleSize, minOutputSize,
953                                 &width, &height)) {
954                             break;
955                         }
956 
957                         SkString basename = SkOSPath::Basename(path.c_str());
958                         SkIRect subset;
959                         const uint32_t subsetSize = sampleSize * minOutputSize;
960                         switch (currentSubsetType) {
961                             case kTopLeft_SubsetType:
962                                 basename.append("_TopLeft");
963                                 subset = SkIRect::MakeXYWH(0, 0, subsetSize, subsetSize);
964                                 break;
965                             case kTopRight_SubsetType:
966                                 basename.append("_TopRight");
967                                 subset = SkIRect::MakeXYWH(width - subsetSize, 0, subsetSize,
968                                         subsetSize);
969                                 break;
970                             case kMiddle_SubsetType:
971                                 basename.append("_Middle");
972                                 subset = SkIRect::MakeXYWH((width - subsetSize) / 2,
973                                         (height - subsetSize) / 2, subsetSize, subsetSize);
974                                 break;
975                             case kBottomLeft_SubsetType:
976                                 basename.append("_BottomLeft");
977                                 subset = SkIRect::MakeXYWH(0, height - subsetSize, subsetSize,
978                                         subsetSize);
979                                 break;
980                             case kBottomRight_SubsetType:
981                                 basename.append("_BottomRight");
982                                 subset = SkIRect::MakeXYWH(width - subsetSize,
983                                         height - subsetSize, subsetSize, subsetSize);
984                                 break;
985                             default:
986                                 SkASSERT(false);
987                         }
988 
989                         return new BitmapRegionDecoderBench(basename.c_str(), encoded.get(),
990                                 colorType, sampleSize, subset);
991                     }
992                     fCurrentSubsetType = 0;
993                     fCurrentSampleSize++;
994                 }
995                 fCurrentSampleSize = 0;
996                 fCurrentColorType++;
997             }
998             fCurrentColorType = 0;
999         }
1000 
1001         while (fCurrentColorImage < fColorImages.count()) {
1002             fSourceType = "colorimage";
1003             fBenchType = "skcolorcodec";
1004             const SkString& path = fColorImages[fCurrentColorImage];
1005             fCurrentColorImage++;
1006             sk_sp<SkData> encoded = SkData::MakeFromFileName(path.c_str());
1007             if (encoded) {
1008                 return new ColorCodecBench(SkOSPath::Basename(path.c_str()).c_str(),
1009                                            std::move(encoded));
1010             } else {
1011                 SkDebugf("Could not read file %s.\n", path.c_str());
1012             }
1013         }
1014 
1015         return nullptr;
1016     }
1017 
fillCurrentOptions(ResultsWriter * log) const1018     void fillCurrentOptions(ResultsWriter* log) const {
1019         log->configOption("source_type", fSourceType);
1020         log->configOption("bench_type",  fBenchType);
1021         if (0 == strcmp(fSourceType, "skp")) {
1022             log->configOption("clip",
1023                     SkStringPrintf("%d %d %d %d", fClip.fLeft, fClip.fTop,
1024                                                   fClip.fRight, fClip.fBottom).c_str());
1025             SkASSERT_RELEASE(fCurrentScale < fScales.count());  // debugging paranoia
1026             log->configOption("scale", SkStringPrintf("%.2g", fScales[fCurrentScale]).c_str());
1027             if (fCurrentUseMPD > 0) {
1028                 SkASSERT(1 == fCurrentUseMPD || 2 == fCurrentUseMPD);
1029                 log->configOption("multi_picture_draw", fUseMPDs[fCurrentUseMPD-1] ? "true" : "false");
1030             }
1031         }
1032         if (0 == strcmp(fBenchType, "recording")) {
1033             log->metric("bytes", fSKPBytes);
1034             log->metric("ops",   fSKPOps);
1035         }
1036     }
1037 
1038 private:
1039     enum SubsetType {
1040         kTopLeft_SubsetType     = 0,
1041         kTopRight_SubsetType    = 1,
1042         kMiddle_SubsetType      = 2,
1043         kBottomLeft_SubsetType  = 3,
1044         kBottomRight_SubsetType = 4,
1045         kTranslate_SubsetType   = 5,
1046         kZoom_SubsetType        = 6,
1047         kLast_SubsetType        = kZoom_SubsetType,
1048         kLastSingle_SubsetType  = kBottomRight_SubsetType,
1049     };
1050 
1051     const BenchRegistry* fBenches;
1052     const skiagm::GMRegistry* fGMs;
1053     SkIRect            fClip;
1054     SkTArray<SkScalar> fScales;
1055     SkTArray<SkString> fSKPs;
1056     SkTArray<SkString> fSVGs;
1057     SkTArray<bool>     fUseMPDs;
1058     SkTArray<SkString> fImages;
1059     SkTArray<SkString> fColorImages;
1060     SkTArray<SkColorType, true> fColorTypes;
1061     SkScalar           fZoomMax;
1062     double             fZoomPeriodMs;
1063 
1064     double fSKPBytes, fSKPOps;
1065 
1066     const char* fSourceType;  // What we're benching: bench, GM, SKP, ...
1067     const char* fBenchType;   // How we bench it: micro, recording, playback, ...
1068     int fCurrentRecording;
1069     int fCurrentPiping;
1070     int fCurrentScale;
1071     int fCurrentSKP;
1072     int fCurrentSVG;
1073     int fCurrentUseMPD;
1074     int fCurrentCodec;
1075     int fCurrentAndroidCodec;
1076     int fCurrentBRDImage;
1077     int fCurrentColorImage;
1078     int fCurrentColorType;
1079     int fCurrentAlphaType;
1080     int fCurrentSubsetType;
1081     int fCurrentSampleSize;
1082     int fCurrentAnimSKP;
1083 };
1084 
1085 // Some runs (mostly, Valgrind) are so slow that the bot framework thinks we've hung.
1086 // This prints something every once in a while so that it knows we're still working.
start_keepalive()1087 static void start_keepalive() {
1088     struct Loop {
1089         static void forever(void*) {
1090             for (;;) {
1091                 static const int kSec = 1200;
1092             #if defined(SK_BUILD_FOR_WIN)
1093                 Sleep(kSec * 1000);
1094             #else
1095                 sleep(kSec);
1096             #endif
1097                 SkDebugf("\nBenchmarks still running...\n");
1098             }
1099         }
1100     };
1101     static SkThread* intentionallyLeaked = new SkThread(Loop::forever);
1102     intentionallyLeaked->start();
1103 }
1104 
main(int argc,char ** argv)1105 int main(int argc, char** argv) {
1106     SkCommandLineFlags::Parse(argc, argv);
1107     if (FLAGS_trace) {
1108         SkEventTracer::SetInstance(new SkDebugfTracer);
1109     }
1110 #if defined(SK_BUILD_FOR_IOS)
1111     cd_Documents();
1112 #endif
1113     SetupCrashHandler();
1114     SkAutoGraphics ag;
1115     SkTaskGroup::Enabler enabled(FLAGS_threads);
1116 
1117 #if SK_SUPPORT_GPU
1118     GrContextOptions grContextOpts;
1119     grContextOpts.fGpuPathRenderers = CollectGpuPathRenderersFromFlags();
1120     gGrFactory.reset(new GrContextFactory(grContextOpts));
1121 #endif
1122 
1123     if (FLAGS_veryVerbose) {
1124         FLAGS_verbose = true;
1125     }
1126 
1127     if (kAutoTuneLoops != FLAGS_loops) {
1128         FLAGS_samples     = 1;
1129         FLAGS_gpuFrameLag = 0;
1130     }
1131 
1132     if (!FLAGS_writePath.isEmpty()) {
1133         SkDebugf("Writing files to %s.\n", FLAGS_writePath[0]);
1134         if (!sk_mkdir(FLAGS_writePath[0])) {
1135             SkDebugf("Could not create %s. Files won't be written.\n", FLAGS_writePath[0]);
1136             FLAGS_writePath.set(0, nullptr);
1137         }
1138     }
1139 
1140     std::unique_ptr<ResultsWriter> log(new ResultsWriter);
1141     if (!FLAGS_outResultsFile.isEmpty()) {
1142 #if defined(SK_RELEASE)
1143         log.reset(new NanoJSONResultsWriter(FLAGS_outResultsFile[0]));
1144 #else
1145         SkDebugf("I'm ignoring --outResultsFile because this is a Debug build.");
1146         return 1;
1147 #endif
1148     }
1149 
1150     if (1 == FLAGS_properties.count() % 2) {
1151         SkDebugf("ERROR: --properties must be passed with an even number of arguments.\n");
1152         return 1;
1153     }
1154     for (int i = 1; i < FLAGS_properties.count(); i += 2) {
1155         log->property(FLAGS_properties[i-1], FLAGS_properties[i]);
1156     }
1157 
1158     if (1 == FLAGS_key.count() % 2) {
1159         SkDebugf("ERROR: --key must be passed with an even number of arguments.\n");
1160         return 1;
1161     }
1162     for (int i = 1; i < FLAGS_key.count(); i += 2) {
1163         log->key(FLAGS_key[i-1], FLAGS_key[i]);
1164     }
1165 
1166     const double overhead = estimate_timer_overhead();
1167     SkDebugf("Timer overhead: %s\n", HUMANIZE(overhead));
1168 
1169     SkTArray<double> samples;
1170 
1171     if (kAutoTuneLoops != FLAGS_loops) {
1172         SkDebugf("Fixed number of loops; times would only be misleading so we won't print them.\n");
1173     } else if (FLAGS_quiet) {
1174         SkDebugf("! -> high variance, ? -> moderate variance\n");
1175         SkDebugf("    micros   \tbench\n");
1176     } else if (FLAGS_ms) {
1177         SkDebugf("curr/maxrss\tloops\tmin\tmedian\tmean\tmax\tstddev\tsamples\tconfig\tbench\n");
1178     } else {
1179         SkDebugf("curr/maxrss\tloops\tmin\tmedian\tmean\tmax\tstddev\t%-*s\tconfig\tbench\n",
1180                  FLAGS_samples, "samples");
1181     }
1182 
1183     SkTArray<Config> configs;
1184     create_configs(&configs);
1185 
1186 #ifdef THERMAL_MANAGER_SUPPORTED
1187     int tmEnabled, tmThreshold, tmSleepTimeMs, tmTimeoutMs;
1188     if (4 != sscanf(FLAGS_useThermalManager[0], "%d,%d,%d,%d",
1189                     &tmEnabled, &tmThreshold, &tmSleepTimeMs, &tmTimeoutMs)) {
1190         SkDebugf("Can't parse %s from --useThermalManager.\n", FLAGS_useThermalManager[0]);
1191         exit(1);
1192     }
1193     ThermalManager tm(tmThreshold, tmSleepTimeMs, tmTimeoutMs);
1194 #endif
1195 
1196     if (FLAGS_keepAlive) {
1197         start_keepalive();
1198     }
1199 
1200     gSkUseAnalyticAA = FLAGS_analyticAA;
1201 
1202     if (FLAGS_forceAnalyticAA) {
1203         gSkForceAnalyticAA = true;
1204     }
1205     if (FLAGS_forceRasterPipeline) {
1206         gSkForceRasterPipelineBlitter = true;
1207     }
1208 
1209     int runs = 0;
1210     BenchmarkStream benchStream;
1211     while (Benchmark* b = benchStream.next()) {
1212         std::unique_ptr<Benchmark> bench(b);
1213         if (SkCommandLineFlags::ShouldSkip(FLAGS_match, bench->getUniqueName())) {
1214             continue;
1215         }
1216 
1217         if (!configs.empty()) {
1218             log->bench(bench->getUniqueName(), bench->getSize().fX, bench->getSize().fY);
1219             bench->delayedSetup();
1220         }
1221         for (int i = 0; i < configs.count(); ++i) {
1222 #ifdef THERMAL_MANAGER_SUPPORTED
1223             if (tmEnabled && !tm.coolOffIfNecessary()) {
1224                 SkDebugf("Could not cool off, timings will be throttled\n");
1225             }
1226 #endif
1227             Target* target = is_enabled(b, configs[i]);
1228             if (!target) {
1229                 continue;
1230             }
1231 
1232             // During HWUI output this canvas may be nullptr.
1233             SkCanvas* canvas = target->getCanvas();
1234             const char* config = target->config.name.c_str();
1235 
1236             if (FLAGS_pre_log || FLAGS_dryRun) {
1237                 SkDebugf("Running %s\t%s\n"
1238                          , bench->getUniqueName()
1239                          , config);
1240                 if (FLAGS_dryRun) {
1241                     continue;
1242                 }
1243             }
1244 
1245             target->setup();
1246             bench->perCanvasPreDraw(canvas);
1247 
1248             int maxFrameLag;
1249             int loops = target->needsFrameTiming(&maxFrameLag)
1250                 ? setup_gpu_bench(target, bench.get(), maxFrameLag)
1251                 : setup_cpu_bench(overhead, target, bench.get());
1252 
1253             if (FLAGS_ms) {
1254                 samples.reset();
1255                 auto stop = now_ms() + FLAGS_ms;
1256                 do {
1257                     samples.push_back(time(loops, bench.get(), target) / loops);
1258                 } while (now_ms() < stop);
1259             } else {
1260                 samples.reset(FLAGS_samples);
1261                 for (int s = 0; s < FLAGS_samples; s++) {
1262                     samples[s] = time(loops, bench.get(), target) / loops;
1263                 }
1264             }
1265 
1266 #if SK_SUPPORT_GPU
1267             SkTArray<SkString> keys;
1268             SkTArray<double> values;
1269             bool gpuStatsDump = FLAGS_gpuStatsDump && Benchmark::kGPU_Backend == configs[i].backend;
1270             if (gpuStatsDump) {
1271                 // TODO cache stats
1272                 bench->getGpuStats(canvas, &keys, &values);
1273             }
1274 #endif
1275 
1276             bench->perCanvasPostDraw(canvas);
1277 
1278             if (Benchmark::kNonRendering_Backend != target->config.backend &&
1279                 !FLAGS_writePath.isEmpty() && FLAGS_writePath[0]) {
1280                 SkString pngFilename = SkOSPath::Join(FLAGS_writePath[0], config);
1281                 pngFilename = SkOSPath::Join(pngFilename.c_str(), bench->getUniqueName());
1282                 pngFilename.append(".png");
1283                 write_canvas_png(target, pngFilename);
1284             }
1285 
1286             if (kFailedLoops == loops) {
1287                 // Can't be timed.  A warning note has already been printed.
1288                 cleanup_run(target);
1289                 continue;
1290             }
1291 
1292             Stats stats(samples);
1293             log->config(config);
1294             log->configOption("name", bench->getName());
1295             benchStream.fillCurrentOptions(log.get());
1296             target->fillOptions(log.get());
1297             log->metric("min_ms",    stats.min);
1298             log->metrics("samples",    samples);
1299 #if SK_SUPPORT_GPU
1300             if (gpuStatsDump) {
1301                 // dump to json, only SKPBench currently returns valid keys / values
1302                 SkASSERT(keys.count() == values.count());
1303                 for (int i = 0; i < keys.count(); i++) {
1304                     log->metric(keys[i].c_str(), values[i]);
1305                 }
1306             }
1307 #endif
1308 
1309             if (runs++ % FLAGS_flushEvery == 0) {
1310                 log->flush();
1311             }
1312 
1313             if (kAutoTuneLoops != FLAGS_loops) {
1314                 if (configs.count() == 1) {
1315                     config = ""; // Only print the config if we run the same bench on more than one.
1316                 }
1317                 SkDebugf("%4d/%-4dMB\t%s\t%s\n"
1318                          , sk_tools::getCurrResidentSetSizeMB()
1319                          , sk_tools::getMaxResidentSetSizeMB()
1320                          , bench->getUniqueName()
1321                          , config);
1322             } else if (FLAGS_quiet) {
1323                 const char* mark = " ";
1324                 const double stddev_percent = 100 * sqrt(stats.var) / stats.mean;
1325                 if (stddev_percent >  5) mark = "?";
1326                 if (stddev_percent > 10) mark = "!";
1327 
1328                 SkDebugf("%10.2f %s\t%s\t%s\n",
1329                          stats.median*1e3, mark, bench->getUniqueName(), config);
1330             } else if (FLAGS_csv) {
1331                 const double stddev_percent = 100 * sqrt(stats.var) / stats.mean;
1332                 SkDebugf("%g,%g,%g,%g,%g,%s,%s\n"
1333                          , stats.min
1334                          , stats.median
1335                          , stats.mean
1336                          , stats.max
1337                          , stddev_percent
1338                          , config
1339                          , bench->getUniqueName()
1340                          );
1341             } else {
1342                 const char* format = "%4d/%-4dMB\t%d\t%s\t%s\t%s\t%s\t%.0f%%\t%s\t%s\t%s\n";
1343                 const double stddev_percent = 100 * sqrt(stats.var) / stats.mean;
1344                 SkDebugf(format
1345                         , sk_tools::getCurrResidentSetSizeMB()
1346                         , sk_tools::getMaxResidentSetSizeMB()
1347                         , loops
1348                         , HUMANIZE(stats.min)
1349                         , HUMANIZE(stats.median)
1350                         , HUMANIZE(stats.mean)
1351                         , HUMANIZE(stats.max)
1352                         , stddev_percent
1353                         , FLAGS_ms ? to_string(samples.count()).c_str() : stats.plot.c_str()
1354                         , config
1355                         , bench->getUniqueName()
1356                         );
1357             }
1358 
1359 #if SK_SUPPORT_GPU
1360             if (FLAGS_gpuStats && Benchmark::kGPU_Backend == configs[i].backend) {
1361                 GrContext* context = gGrFactory->get(configs[i].ctxType,
1362                                                      configs[i].ctxOverrides);
1363                 context->printCacheStats();
1364                 context->printGpuStats();
1365             }
1366 #endif
1367 
1368             if (FLAGS_verbose) {
1369                 SkDebugf("Samples:  ");
1370                 for (int i = 0; i < samples.count(); i++) {
1371                     SkDebugf("%s  ", HUMANIZE(samples[i]));
1372                 }
1373                 SkDebugf("%s\n", bench->getUniqueName());
1374             }
1375             cleanup_run(target);
1376         }
1377     }
1378 
1379     SkGraphics::PurgeAllCaches();
1380 
1381     log->bench("memory_usage", 0,0);
1382     log->config("meta");
1383     log->metric("max_rss_mb", sk_tools::getMaxResidentSetSizeMB());
1384 
1385 #if SK_SUPPORT_GPU
1386     // Make sure we clean up the global GrContextFactory here, otherwise we might race with the
1387     // SkEventTracer destructor
1388     gGrFactory.reset(nullptr);
1389 #endif
1390 
1391     return 0;
1392 }
1393