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-rw-r--r--cc/cc.gyp2
-rw-r--r--cc/debug/OWNERS3
-rw-r--r--cc/debug/benchmark_instrumentation.cc30
-rw-r--r--cc/debug/benchmark_instrumentation.h30
-rw-r--r--cc/debug/rendering_stats.cc14
-rw-r--r--cc/debug/rendering_stats.h2
-rw-r--r--cc/debug/rendering_stats_instrumentation.h14
-rw-r--r--cc/layers/picture_layer.cc6
-rw-r--r--cc/resources/picture.cc29
-rw-r--r--cc/resources/picture.h8
-rw-r--r--cc/resources/picture_pile.cc3
-rw-r--r--cc/resources/picture_pile_impl.cc9
-rw-r--r--cc/resources/raster_worker_pool.cc25
-rw-r--r--cc/trees/layer_tree_host.cc7
-rw-r--r--cc/trees/layer_tree_host_impl.cc4
-rw-r--r--cc/trees/single_thread_proxy.cc4
-rw-r--r--cc/trees/thread_proxy.cc4
17 files changed, 96 insertions, 98 deletions
diff --git a/cc/cc.gyp b/cc/cc.gyp
index c9ea0bc..aafaf74 100644
--- a/cc/cc.gyp
+++ b/cc/cc.gyp
@@ -69,6 +69,8 @@
'base/tiling_data.cc',
'base/tiling_data.h',
'base/util.h',
+ 'debug/benchmark_instrumentation.cc',
+ 'debug/benchmark_instrumentation.h',
'debug/debug_colors.cc',
'debug/debug_colors.h',
'debug/debug_rect_history.cc',
diff --git a/cc/debug/OWNERS b/cc/debug/OWNERS
index a46edee..2de2d9b 100644
--- a/cc/debug/OWNERS
+++ b/cc/debug/OWNERS
@@ -2,3 +2,6 @@
per-file benchmark_instrumentation.h=set noparent
per-file benchmark_instrumentation.h=ernstm@chromium.org
per-file benchmark_instrumentation.h=nduca@chromium.org
+per-file benchmark_instrumentation.cc=set noparent
+per-file benchmark_instrumentation.cc=ernstm@chromium.org
+per-file benchmark_instrumentation.cc=nduca@chromium.org
diff --git a/cc/debug/benchmark_instrumentation.cc b/cc/debug/benchmark_instrumentation.cc
new file mode 100644
index 0000000..bf2b022
--- /dev/null
+++ b/cc/debug/benchmark_instrumentation.cc
@@ -0,0 +1,30 @@
+// Copyright 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "base/debug/trace_event.h"
+#include "cc/debug/benchmark_instrumentation.h"
+
+namespace cc {
+
+// Please do not change the trace events in this file without updating
+// tools/perf/measurements/rendering_stats.py accordingly.
+// The benchmarks search for events and their arguments by name.
+
+void BenchmarkInstrumentation::IssueMainThreadRenderingStatsEvent(
+ const MainThreadRenderingStats& stats) {
+ TRACE_EVENT_INSTANT1("benchmark",
+ "BenchmarkInstrumentation::MainThreadRenderingStats",
+ TRACE_EVENT_SCOPE_THREAD,
+ "data", stats.AsTraceableData());
+}
+
+void BenchmarkInstrumentation::IssueImplThreadRenderingStatsEvent(
+ const ImplThreadRenderingStats& stats) {
+ TRACE_EVENT_INSTANT1("benchmark",
+ "BenchmarkInstrumentation::ImplThreadRenderingStats",
+ TRACE_EVENT_SCOPE_THREAD,
+ "data", stats.AsTraceableData());
+}
+
+} // namespace cc
diff --git a/cc/debug/benchmark_instrumentation.h b/cc/debug/benchmark_instrumentation.h
index 615fbe9..2614814 100644
--- a/cc/debug/benchmark_instrumentation.h
+++ b/cc/debug/benchmark_instrumentation.h
@@ -5,28 +5,18 @@
#ifndef CC_DEBUG_BENCHMARK_INSTRUMENTATION_H_
#define CC_DEBUG_BENCHMARK_INSTRUMENTATION_H_
-#include "base/debug/trace_event.h"
+#include "cc/debug/rendering_stats.h"
namespace cc {
-namespace benchmark_instrumentation {
-// Please do not change the string constants in this file (or the TRACE_EVENT
-// calls that use them) without updating
-// tools/perf/measurements/rasterize_and_record_benchmark.py accordingly.
-// The benchmark searches for events and their arguments by name.
-const char kCategory[] = "cc,benchmark";
-const char kSourceFrameNumber[] = "source_frame_number";
-const char kData[] = "data";
-const char kWidth[] = "width";
-const char kHeight[] = "height";
-const char kNumPixelsRasterized[] = "num_pixels_rasterized";
-const char kLayerTreeHostUpdateLayers[] = "LayerTreeHost::UpdateLayers";
-const char kPictureLayerUpdate[] = "PictureLayer::Update";
-const char kRunRasterOnThread[] = "RasterWorkerPoolTaskImpl::RunRasterOnThread";
-const char kRecordLoop[] = "RecordLoop";
-const char kRasterLoop[] = "RasterLoop";
-const char kPictureRecord[] = "Picture::Record";
-const char kPictureRaster[] = "Picture::Raster";
-} // namespace benchmark_instrumentation
+
+class CC_EXPORT BenchmarkInstrumentation {
+ public:
+ static void IssueMainThreadRenderingStatsEvent(
+ const MainThreadRenderingStats& stats);
+ static void IssueImplThreadRenderingStatsEvent(
+ const ImplThreadRenderingStats& stats);
+};
+
} // namespace cc
#endif // CC_DEBUG_BENCHMARK_INSTRUMENTATION_H_
diff --git a/cc/debug/rendering_stats.cc b/cc/debug/rendering_stats.cc
index 6d9f615..16bf091 100644
--- a/cc/debug/rendering_stats.cc
+++ b/cc/debug/rendering_stats.cc
@@ -12,13 +12,6 @@ MainThreadRenderingStats::MainThreadRenderingStats()
painted_pixel_count(0),
recorded_pixel_count(0) {}
-void MainThreadRenderingStats::IssueTraceEvent() const {
- TRACE_EVENT_INSTANT1("benchmark",
- "MainThreadRenderingStats::IssueTraceEvent",
- TRACE_EVENT_SCOPE_THREAD,
- "data", AsTraceableData());
-}
-
scoped_refptr<base::debug::ConvertableToTraceFormat>
MainThreadRenderingStats::AsTraceableData() const {
scoped_ptr<base::DictionaryValue> record_data(new base::DictionaryValue());
@@ -42,13 +35,6 @@ ImplThreadRenderingStats::ImplThreadRenderingStats()
: frame_count(0),
rasterized_pixel_count(0) {}
-void ImplThreadRenderingStats::IssueTraceEvent() const {
- TRACE_EVENT_INSTANT1("benchmark",
- "ImplThreadRenderingStats::IssueTraceEvent",
- TRACE_EVENT_SCOPE_THREAD,
- "data", AsTraceableData());
-}
-
scoped_refptr<base::debug::ConvertableToTraceFormat>
ImplThreadRenderingStats::AsTraceableData() const {
scoped_ptr<base::DictionaryValue> record_data(new base::DictionaryValue());
diff --git a/cc/debug/rendering_stats.h b/cc/debug/rendering_stats.h
index 1e2aaa3..ff1dbef 100644
--- a/cc/debug/rendering_stats.h
+++ b/cc/debug/rendering_stats.h
@@ -39,7 +39,6 @@ struct CC_EXPORT MainThreadRenderingStats {
int64 recorded_pixel_count;
MainThreadRenderingStats();
- void IssueTraceEvent() const;
scoped_refptr<base::debug::ConvertableToTraceFormat> AsTraceableData() const;
void Add(const MainThreadRenderingStats& other);
};
@@ -53,7 +52,6 @@ struct CC_EXPORT ImplThreadRenderingStats {
int64 rasterized_pixel_count;
ImplThreadRenderingStats();
- void IssueTraceEvent() const;
scoped_refptr<base::debug::ConvertableToTraceFormat> AsTraceableData() const;
void Add(const ImplThreadRenderingStats& other);
};
diff --git a/cc/debug/rendering_stats_instrumentation.h b/cc/debug/rendering_stats_instrumentation.h
index fcecb37..4508600 100644
--- a/cc/debug/rendering_stats_instrumentation.h
+++ b/cc/debug/rendering_stats_instrumentation.h
@@ -19,11 +19,11 @@ class CC_EXPORT RenderingStatsInstrumentation {
virtual ~RenderingStatsInstrumentation();
// Return current main thread rendering stats.
- MainThreadRenderingStats GetMainThreadRenderingStats() {
+ const MainThreadRenderingStats& main_thread_rendering_stats() {
return main_stats_;
}
// Return current impl thread rendering stats.
- ImplThreadRenderingStats GetImplThreadRenderingStats() {
+ const ImplThreadRenderingStats& impl_thread_rendering_stats() {
return impl_stats_;
}
// Return the accumulated, combined rendering stats.
@@ -36,15 +36,6 @@ class CC_EXPORT RenderingStatsInstrumentation {
// clear current stats.
void AccumulateAndClearImplThreadStats();
- // Issue trace event for current main thread rendering stats.
- void IssueTraceEventForMainThreadStats() {
- main_stats_.IssueTraceEvent();
- }
- // Issue trace event for current impl thread rendering stats.
- void IssueTraceEventForImplThreadStats() {
- impl_stats_.IssueTraceEvent();
- }
-
// Read and write access to the record_rendering_stats_ flag is not locked to
// improve performance. The flag is commonly turned off and hardly changes
// it's value during runtime.
@@ -66,6 +57,7 @@ class CC_EXPORT RenderingStatsInstrumentation {
RenderingStatsInstrumentation();
private:
+ // TODO(ernstm): rename to *_thread_rendering_stats_*
MainThreadRenderingStats main_stats_;
MainThreadRenderingStats main_stats_accu_;
ImplThreadRenderingStats impl_stats_;
diff --git a/cc/layers/picture_layer.cc b/cc/layers/picture_layer.cc
index 1c12664..89157a3 100644
--- a/cc/layers/picture_layer.cc
+++ b/cc/layers/picture_layer.cc
@@ -4,7 +4,6 @@
#include "cc/layers/picture_layer.h"
-#include "cc/debug/benchmark_instrumentation.h"
#include "cc/debug/devtools_instrumentation.h"
#include "cc/layers/content_layer_client.h"
#include "cc/layers/picture_layer_impl.h"
@@ -75,9 +74,8 @@ bool PictureLayer::Update(ResourceUpdateQueue* queue,
// Do not early-out of this function so that PicturePile::Update has a chance
// to record pictures due to changing visibility of this layer.
- TRACE_EVENT1(benchmark_instrumentation::kCategory,
- benchmark_instrumentation::kPictureLayerUpdate,
- benchmark_instrumentation::kSourceFrameNumber,
+ TRACE_EVENT1("cc", "PictureLayer::Update",
+ "source_frame_number",
layer_tree_host()->source_frame_number());
bool updated = Layer::Update(queue, occlusion);
diff --git a/cc/resources/picture.cc b/cc/resources/picture.cc
index 94ab870..8083050 100644
--- a/cc/resources/picture.cc
+++ b/cc/resources/picture.cc
@@ -13,7 +13,6 @@
#include "base/values.h"
#include "cc/base/math_util.h"
#include "cc/base/util.h"
-#include "cc/debug/benchmark_instrumentation.h"
#include "cc/debug/traced_picture.h"
#include "cc/debug/traced_value.h"
#include "cc/layers/content_layer_client.h"
@@ -204,9 +203,8 @@ void Picture::CloneForDrawing(int num_threads) {
void Picture::Record(ContentLayerClient* painter,
const SkTileGridPicture::TileGridInfo& tile_grid_info) {
- TRACE_EVENT1(benchmark_instrumentation::kCategory,
- benchmark_instrumentation::kPictureRecord,
- benchmark_instrumentation::kData, AsTraceableRecordData());
+ TRACE_EVENT1("cc", "Picture::Record",
+ "data", AsTraceableRecordData());
DCHECK(!tile_grid_info.fTileInterval.isEmpty());
picture_ = skia::AdoptRef(new SkTileGridPicture(
@@ -293,15 +291,14 @@ void Picture::GatherPixelRefs(
max_pixel_cell_ = gfx::Point(max_x, max_y);
}
-void Picture::Raster(
+int Picture::Raster(
SkCanvas* canvas,
SkDrawPictureCallback* callback,
gfx::Rect content_rect,
float contents_scale) {
- TRACE_EVENT_BEGIN1(benchmark_instrumentation::kCategory,
- benchmark_instrumentation::kPictureRaster,
- "data",
- AsTraceableRasterData(content_rect, contents_scale));
+ TRACE_EVENT_BEGIN1(
+ "cc", "Picture::Raster",
+ "data", AsTraceableRasterData(content_rect, contents_scale));
DCHECK(picture_);
@@ -313,10 +310,10 @@ void Picture::Raster(
SkIRect bounds;
canvas->getClipDeviceBounds(&bounds);
canvas->restore();
- TRACE_EVENT_END1(benchmark_instrumentation::kCategory,
- benchmark_instrumentation::kPictureRaster,
- benchmark_instrumentation::kNumPixelsRasterized,
- bounds.width() * bounds.height());
+ TRACE_EVENT_END1(
+ "cc", "Picture::Raster",
+ "num_pixels_rasterized", bounds.width() * bounds.height());
+ return bounds.width() * bounds.height();
}
void Picture::Replay(SkCanvas* canvas) {
@@ -478,10 +475,8 @@ scoped_refptr<base::debug::ConvertableToTraceFormat>
Picture::AsTraceableRecordData() const {
scoped_ptr<base::DictionaryValue> record_data(new base::DictionaryValue());
record_data->Set("picture_id", TracedValue::CreateIDRef(this).release());
- record_data->SetInteger(benchmark_instrumentation::kWidth,
- layer_rect_.width());
- record_data->SetInteger(benchmark_instrumentation::kHeight,
- layer_rect_.height());
+ record_data->SetInteger("width", layer_rect_.width());
+ record_data->SetInteger("height", layer_rect_.height());
return TracedValue::FromValue(record_data.release());
}
diff --git a/cc/resources/picture.h b/cc/resources/picture.h
index 6a7aca7..8210e86 100644
--- a/cc/resources/picture.h
+++ b/cc/resources/picture.h
@@ -68,10 +68,10 @@ class CC_EXPORT Picture
bool HasRecording() const { return picture_.get() != NULL; }
// Apply this contents scale and raster the content rect into the canvas.
- void Raster(SkCanvas* canvas,
- SkDrawPictureCallback* callback,
- gfx::Rect content_rect,
- float contents_scale);
+ int Raster(SkCanvas* canvas,
+ SkDrawPictureCallback* callback,
+ gfx::Rect content_rect,
+ float contents_scale);
// Draw the picture directly into the given canvas, without applying any
// clip/scale/layer transformations.
diff --git a/cc/resources/picture_pile.cc b/cc/resources/picture_pile.cc
index d2d82f5..d1cb0e1 100644
--- a/cc/resources/picture_pile.cc
+++ b/cc/resources/picture_pile.cc
@@ -9,7 +9,6 @@
#include <vector>
#include "cc/base/region.h"
-#include "cc/debug/benchmark_instrumentation.h"
#include "cc/debug/rendering_stats_instrumentation.h"
#include "cc/resources/picture_pile_impl.h"
@@ -114,8 +113,6 @@ bool PicturePile::Update(
pic != pic_list.end(); ++pic) {
if (!(*pic)->HasRecording()) {
modified_pile = true;
- TRACE_EVENT0(benchmark_instrumentation::kCategory,
- benchmark_instrumentation::kRecordLoop);
base::TimeDelta best_duration = base::TimeDelta::FromInternalValue(
std::numeric_limits<int64>::max());
for (int i = 0; i < repeat_count; i++) {
diff --git a/cc/resources/picture_pile_impl.cc b/cc/resources/picture_pile_impl.cc
index 8f98350..95b333c 100644
--- a/cc/resources/picture_pile_impl.cc
+++ b/cc/resources/picture_pile_impl.cc
@@ -7,7 +7,6 @@
#include "base/debug/trace_event.h"
#include "cc/base/region.h"
-#include "cc/debug/benchmark_instrumentation.h"
#include "cc/debug/debug_colors.h"
#include "cc/resources/picture_pile_impl.h"
#include "skia/ext/analysis_canvas.h"
@@ -201,14 +200,14 @@ void PicturePileImpl::RasterCommon(
base::TimeDelta best_duration =
base::TimeDelta::FromInternalValue(std::numeric_limits<int64>::max());
int repeat_count = std::max(1, slow_down_raster_scale_factor_for_debug_);
+ int rasterized_pixel_count = 0;
- TRACE_EVENT0(benchmark_instrumentation::kCategory,
- benchmark_instrumentation::kRasterLoop);
for (int j = 0; j < repeat_count; ++j) {
base::TimeTicks start_time;
if (rendering_stats_instrumentation)
start_time = rendering_stats_instrumentation->StartRecording();
- (*i)->Raster(canvas, callback, content_clip, contents_scale);
+ rasterized_pixel_count =
+ (*i)->Raster(canvas, callback, content_clip, contents_scale);
if (rendering_stats_instrumentation) {
base::TimeDelta duration =
rendering_stats_instrumentation->EndRecording(start_time);
@@ -216,8 +215,6 @@ void PicturePileImpl::RasterCommon(
}
}
if (rendering_stats_instrumentation) {
- int64 rasterized_pixel_count =
- repeat_count * content_clip.width() * content_clip.height();
rendering_stats_instrumentation->AddRaster(best_duration,
rasterized_pixel_count);
}
diff --git a/cc/resources/raster_worker_pool.cc b/cc/resources/raster_worker_pool.cc
index e7f1907..b7dd504 100644
--- a/cc/resources/raster_worker_pool.cc
+++ b/cc/resources/raster_worker_pool.cc
@@ -7,7 +7,6 @@
#include "base/json/json_writer.h"
#include "base/metrics/histogram.h"
#include "base/values.h"
-#include "cc/debug/benchmark_instrumentation.h"
#include "cc/debug/devtools_instrumentation.h"
#include "cc/debug/traced_value.h"
#include "cc/resources/picture_pile_impl.h"
@@ -103,9 +102,8 @@ class RasterWorkerPoolTaskImpl : public internal::RasterWorkerPoolTask {
gfx::Size size,
int stride) {
TRACE_EVENT2(
- benchmark_instrumentation::kCategory,
- benchmark_instrumentation::kRunRasterOnThread,
- benchmark_instrumentation::kData,
+ "cc", "RasterWorkerPoolTaskImpl::RunRasterOnThread",
+ "data",
TracedValue::FromValue(DataAsValue().release()),
"raster_mode",
TracedValue::FromValue(RasterModeAsValue(raster_mode_).release()));
@@ -166,14 +164,23 @@ class RasterWorkerPoolTaskImpl : public internal::RasterWorkerPoolTask {
canvas.setDrawFilter(draw_filter.get());
base::TimeDelta prev_rasterize_time =
- rendering_stats_->GetImplThreadRenderingStats().rasterize_time;
-
- picture_clone->RasterToBitmap(
- &canvas, content_rect_, contents_scale_, rendering_stats_);
+ rendering_stats_->impl_thread_rendering_stats().rasterize_time;
+
+ // Only record rasterization time for highres tiles, because
+ // lowres tiles are not required for activation and therefore
+ // introduce noise in the measurement (sometimes they get rasterized
+ // before we draw and sometimes they aren't)
+ if (tile_resolution_ == HIGH_RESOLUTION) {
+ picture_clone->RasterToBitmap(
+ &canvas, content_rect_, contents_scale_, rendering_stats_);
+ } else {
+ picture_clone->RasterToBitmap(
+ &canvas, content_rect_, contents_scale_, NULL);
+ }
if (rendering_stats_->record_rendering_stats()) {
base::TimeDelta current_rasterize_time =
- rendering_stats_->GetImplThreadRenderingStats().rasterize_time;
+ rendering_stats_->impl_thread_rendering_stats().rasterize_time;
HISTOGRAM_CUSTOM_COUNTS(
"Renderer4.PictureRasterTimeUS",
(current_rasterize_time - prev_rasterize_time).InMicroseconds(),
diff --git a/cc/trees/layer_tree_host.cc b/cc/trees/layer_tree_host.cc
index 2722c44..930ec05 100644
--- a/cc/trees/layer_tree_host.cc
+++ b/cc/trees/layer_tree_host.cc
@@ -17,7 +17,6 @@
#include "cc/animation/animation_registrar.h"
#include "cc/animation/layer_animation_controller.h"
#include "cc/base/math_util.h"
-#include "cc/debug/benchmark_instrumentation.h"
#include "cc/debug/devtools_instrumentation.h"
#include "cc/debug/overdraw_metrics.h"
#include "cc/debug/rendering_stats_instrumentation.h"
@@ -777,10 +776,8 @@ bool LayerTreeHost::UsingSharedMemoryResources() {
bool LayerTreeHost::UpdateLayers(Layer* root_layer,
ResourceUpdateQueue* queue) {
- TRACE_EVENT1(benchmark_instrumentation::kCategory,
- benchmark_instrumentation::kLayerTreeHostUpdateLayers,
- benchmark_instrumentation::kSourceFrameNumber,
- source_frame_number());
+ TRACE_EVENT1("cc", "LayerTreeHost::UpdateLayers",
+ "source_frame_number", source_frame_number());
RenderSurfaceLayerList update_list;
{
diff --git a/cc/trees/layer_tree_host_impl.cc b/cc/trees/layer_tree_host_impl.cc
index 8331bd5..c0c5c2a 100644
--- a/cc/trees/layer_tree_host_impl.cc
+++ b/cc/trees/layer_tree_host_impl.cc
@@ -17,6 +17,7 @@
#include "cc/animation/timing_function.h"
#include "cc/base/math_util.h"
#include "cc/base/util.h"
+#include "cc/debug/benchmark_instrumentation.h"
#include "cc/debug/debug_rect_history.h"
#include "cc/debug/frame_rate_counter.h"
#include "cc/debug/overdraw_metrics.h"
@@ -1357,7 +1358,8 @@ void LayerTreeHostImpl::DrawLayers(FrameData* frame,
}
active_tree_->root_layer()->ResetAllChangeTrackingForSubtree();
- rendering_stats_instrumentation_->IssueTraceEventForImplThreadStats();
+ BenchmarkInstrumentation::IssueImplThreadRenderingStatsEvent(
+ rendering_stats_instrumentation_->impl_thread_rendering_stats());
rendering_stats_instrumentation_->AccumulateAndClearImplThreadStats();
}
diff --git a/cc/trees/single_thread_proxy.cc b/cc/trees/single_thread_proxy.cc
index 6b3d71c..634c3bc 100644
--- a/cc/trees/single_thread_proxy.cc
+++ b/cc/trees/single_thread_proxy.cc
@@ -6,6 +6,7 @@
#include "base/auto_reset.h"
#include "base/debug/trace_event.h"
+#include "cc/debug/benchmark_instrumentation.h"
#include "cc/output/context_provider.h"
#include "cc/output/output_surface.h"
#include "cc/quads/draw_quad.h"
@@ -225,7 +226,8 @@ void SingleThreadProxy::DoCommit(scoped_ptr<ResourceUpdateQueue> queue) {
RenderingStatsInstrumentation* stats_instrumentation =
layer_tree_host_->rendering_stats_instrumentation();
- stats_instrumentation->IssueTraceEventForMainThreadStats();
+ BenchmarkInstrumentation::IssueMainThreadRenderingStatsEvent(
+ stats_instrumentation->main_thread_rendering_stats());
stats_instrumentation->AccumulateAndClearMainThreadStats();
}
layer_tree_host_->CommitComplete();
diff --git a/cc/trees/thread_proxy.cc b/cc/trees/thread_proxy.cc
index 0d7d679..d25002d 100644
--- a/cc/trees/thread_proxy.cc
+++ b/cc/trees/thread_proxy.cc
@@ -10,6 +10,7 @@
#include "base/bind.h"
#include "base/debug/trace_event.h"
#include "base/metrics/histogram.h"
+#include "cc/debug/benchmark_instrumentation.h"
#include "cc/input/input_handler.h"
#include "cc/output/context_provider.h"
#include "cc/output/output_surface.h"
@@ -879,7 +880,8 @@ void ThreadProxy::BeginFrameOnMainThread(
RenderingStatsInstrumentation* stats_instrumentation =
layer_tree_host_->rendering_stats_instrumentation();
- stats_instrumentation->IssueTraceEventForMainThreadStats();
+ BenchmarkInstrumentation::IssueMainThreadRenderingStatsEvent(
+ stats_instrumentation->main_thread_rendering_stats());
stats_instrumentation->AccumulateAndClearMainThreadStats();
}