cc/debug/rasterize_and_record_benchmark.cc

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "cc/debug/rasterize_and_record_benchmark.h"
   6
   7 #include <algorithm>
   8 #include <limits>
   9 #include <string>
  10
  11 #include "base/basictypes.h"
  12 #include "base/strings/stringprintf.h"
  13 #include "base/values.h"
  14 #include "cc/debug/lap_timer.h"
  15 #include "cc/debug/rasterize_and_record_benchmark_impl.h"
  16 #include "cc/layers/content_layer_client.h"
  17 #include "cc/layers/layer.h"
  18 #include "cc/layers/picture_layer.h"
  19 #include "cc/resources/display_item_list.h"
  20 #include "cc/resources/picture_pile.h"
  21 #include "cc/trees/layer_tree_host.h"
  22 #include "cc/trees/layer_tree_host_common.h"
  23 #include "third_party/skia/include/utils/SkPictureUtils.h"
  24 #include "ui/gfx/geometry/rect.h"
  25
  26 namespace cc {
  27
  28 namespace {
  29
  30 const int kDefaultRecordRepeatCount = 100;
  31
  32 // Parameters for LapTimer.
  33 const int kTimeLimitMillis = 1;
  34 const int kWarmupRuns = 0;
  35 const int kTimeCheckInterval = 1;
  36
  37 const char* kModeSuffixes[RecordingSource::RECORDING_MODE_COUNT] =
  38     {"", "_sk_null_canvas", "_painting_disabled", "_caching_disabled"};
  39
  40 }  // namespace
  41
  42 RasterizeAndRecordBenchmark::RasterizeAndRecordBenchmark(
  43     scoped_ptr<base::Value> value,
  44     const MicroBenchmark::DoneCallback& callback)
  45     : MicroBenchmark(callback),
  46       record_repeat_count_(kDefaultRecordRepeatCount),
  47       settings_(value.Pass()),
  48       main_thread_benchmark_done_(false),
  49       host_(nullptr),
  50       weak_ptr_factory_(this) {
  51   base::DictionaryValue* settings = nullptr;
  52   settings_->GetAsDictionary(&settings);
  53   if (!settings)
  54     return;
  55
  56   if (settings->HasKey("record_repeat_count"))
  57     settings->GetInteger("record_repeat_count", &record_repeat_count_);
  58 }
  59
  60 RasterizeAndRecordBenchmark::~RasterizeAndRecordBenchmark() {
  61   weak_ptr_factory_.InvalidateWeakPtrs();
  62 }
  63
  64 void RasterizeAndRecordBenchmark::DidUpdateLayers(LayerTreeHost* host) {
  65   host_ = host;
  66   LayerTreeHostCommon::CallFunctionForSubtree(
  67       host->root_layer(),
  68       [this](Layer* layer) { layer->RunMicroBenchmark(this); });
  69
  70   DCHECK(!results_.get());
  71   results_ = make_scoped_ptr(new base::DictionaryValue);
  72   results_->SetInteger("pixels_recorded", record_results_.pixels_recorded);
  73   results_->SetInteger("picture_memory_usage", record_results_.bytes_used);
  74
  75   for (int i = 0; i < RecordingSource::RECORDING_MODE_COUNT; i++) {
  76     std::string name = base::StringPrintf("record_time%s_ms", kModeSuffixes[i]);
  77     results_->SetDouble(name,
  78                         record_results_.total_best_time[i].InMillisecondsF());
  79   }
  80   main_thread_benchmark_done_ = true;
  81 }
  82
  83 void RasterizeAndRecordBenchmark::RecordRasterResults(
  84     scoped_ptr<base::Value> results_value) {
  85   DCHECK(main_thread_benchmark_done_);
  86
  87   base::DictionaryValue* results = nullptr;
  88   results_value->GetAsDictionary(&results);
  89   DCHECK(results);
  90
  91   results_->MergeDictionary(results);
  92
  93   NotifyDone(results_.Pass());
  94 }
  95
  96 scoped_ptr<MicroBenchmarkImpl> RasterizeAndRecordBenchmark::CreateBenchmarkImpl(
  97     scoped_refptr<base::MessageLoopProxy> origin_loop) {
  98   return make_scoped_ptr(new RasterizeAndRecordBenchmarkImpl(
  99       origin_loop,
 100       settings_.get(),
 101       base::Bind(&RasterizeAndRecordBenchmark::RecordRasterResults,
 102                  weak_ptr_factory_.GetWeakPtr())));
 103 }
 104
 105 void RasterizeAndRecordBenchmark::RunOnLayer(PictureLayer* layer) {
 106   DCHECK(host_);
 107
 108   gfx::Rect visible_content_rect = gfx::ScaleToEnclosingRect(
 109       layer->visible_content_rect(), 1.f / layer->contents_scale_x());
 110   if (visible_content_rect.IsEmpty())
 111     return;
 112
 113   if (host_->settings().use_display_lists) {
 114     RunOnDisplayListLayer(layer, visible_content_rect);
 115   } else {
 116     RunOnPictureLayer(layer, visible_content_rect);
 117   }
 118 }
 119
 120 void RasterizeAndRecordBenchmark::RunOnPictureLayer(
 121     PictureLayer* layer,
 122     const gfx::Rect& visible_content_rect) {
 123   ContentLayerClient* painter = layer->client();
 124
 125   DCHECK(host_ && !host_->settings().use_display_lists);
 126
 127   gfx::Size tile_grid_size = host_->settings().default_tile_size;
 128
 129   for (int mode_index = 0; mode_index < RecordingSource::RECORDING_MODE_COUNT;
 130        mode_index++) {
 131     RecordingSource::RecordingMode mode =
 132         static_cast<RecordingSource::RecordingMode>(mode_index);
 133     base::TimeDelta min_time = base::TimeDelta::Max();
 134     size_t memory_used = 0;
 135
 136     for (int i = 0; i < record_repeat_count_; ++i) {
 137       // Run for a minimum amount of time to avoid problems with timer
 138       // quantization when the layer is very small.
 139       LapTimer timer(kWarmupRuns,
 140                      base::TimeDelta::FromMilliseconds(kTimeLimitMillis),
 141                      kTimeCheckInterval);
 142       scoped_refptr<Picture> picture;
 143       do {
 144         picture = Picture::Create(visible_content_rect, painter, tile_grid_size,
 145                                   false, mode);
 146         if (memory_used) {
 147           // Verify we are recording the same thing each time.
 148           DCHECK(memory_used == picture->ApproximateMemoryUsage());
 149         } else {
 150           memory_used = picture->ApproximateMemoryUsage();
 151         }
 152
 153         timer.NextLap();
 154       } while (!timer.HasTimeLimitExpired());
 155       base::TimeDelta duration =
 156           base::TimeDelta::FromMillisecondsD(timer.MsPerLap());
 157       if (duration < min_time)
 158         min_time = duration;
 159     }
 160
 161     if (mode == RecordingSource::RECORD_NORMALLY) {
 162       record_results_.bytes_used += memory_used;
 163       record_results_.pixels_recorded +=
 164           visible_content_rect.width() * visible_content_rect.height();
 165     }
 166     record_results_.total_best_time[mode_index] += min_time;
 167   }
 168 }
 169
 170 void RasterizeAndRecordBenchmark::RunOnDisplayListLayer(
 171     PictureLayer* layer,
 172     const gfx::Rect& visible_content_rect) {
 173   ContentLayerClient* painter = layer->client();
 174
 175   DCHECK(host_ && host_->settings().use_display_lists);
 176
 177   for (int mode_index = 0; mode_index < RecordingSource::RECORDING_MODE_COUNT;
 178        mode_index++) {
 179     ContentLayerClient::PaintingControlSetting painting_control =
 180         ContentLayerClient::PAINTING_BEHAVIOR_NORMAL;
 181     switch (static_cast<RecordingSource::RecordingMode>(mode_index)) {
 182       case RecordingSource::RECORD_NORMALLY:
 183         // Already setup for normal recording.
 184         break;
 185       case RecordingSource::RECORD_WITH_SK_NULL_CANVAS:
 186       // TODO(schenney): Remove this when DisplayList recording is the only
 187       // option. For now, fall through and disable construction.
 188       case RecordingSource::RECORD_WITH_PAINTING_DISABLED:
 189         painting_control =
 190             ContentLayerClient::DISPLAY_LIST_CONSTRUCTION_DISABLED;
 191         break;
 192       case RecordingSource::RECORD_WITH_CACHING_DISABLED:
 193         painting_control = ContentLayerClient::DISPLAY_LIST_CACHING_DISABLED;
 194         break;
 195       default:
 196         NOTREACHED();
 197     }
 198     base::TimeDelta min_time = base::TimeDelta::Max();
 199     size_t memory_used = 0;
 200
 201     scoped_refptr<DisplayItemList> display_list;
 202     for (int i = 0; i < record_repeat_count_; ++i) {
 203       // Run for a minimum amount of time to avoid problems with timer
 204       // quantization when the layer is very small.
 205       LapTimer timer(kWarmupRuns,
 206                      base::TimeDelta::FromMilliseconds(kTimeLimitMillis),
 207                      kTimeCheckInterval);
 208
 209       do {
 210         display_list = painter->PaintContentsToDisplayList(visible_content_rect,
 211                                                            painting_control);
 212
 213         if (memory_used) {
 214           // Verify we are recording the same thing each time.
 215           DCHECK(memory_used == display_list->PictureMemoryUsage());
 216         } else {
 217           memory_used = display_list->PictureMemoryUsage();
 218         }
 219
 220         timer.NextLap();
 221       } while (!timer.HasTimeLimitExpired());
 222       base::TimeDelta duration =
 223           base::TimeDelta::FromMillisecondsD(timer.MsPerLap());
 224       if (duration < min_time)
 225         min_time = duration;
 226     }
 227
 228     record_results_.bytes_used += memory_used;
 229     record_results_.pixels_recorded +=
 230         visible_content_rect.width() * visible_content_rect.height();
 231     record_results_.total_best_time[mode_index] += min_time;
 232   }
 233 }
 234
 235 RasterizeAndRecordBenchmark::RecordResults::RecordResults()
 236     : pixels_recorded(0), bytes_used(0) {
 237 }
 238
 239 RasterizeAndRecordBenchmark::RecordResults::~RecordResults() {}
 240
 241 }  // namespace cc