diff options
| -rw-r--r-- | cc/trees/layer_tree_host.cc | 29 | ||||
| -rw-r--r-- | cc/trees/layer_tree_host.h | 2 |
2 files changed, 31 insertions, 0 deletions
diff --git a/cc/trees/layer_tree_host.cc b/cc/trees/layer_tree_host.cc index 82a49b5..d1843f5 100644 --- a/cc/trees/layer_tree_host.cc +++ b/cc/trees/layer_tree_host.cc @@ -108,6 +108,7 @@ LayerTreeHost::LayerTreeHost(LayerTreeHostClient* client, max_page_scale_factor_(1.f), has_gpu_rasterization_trigger_(false), content_is_suitable_for_gpu_rasterization_(true), + gpu_rasterization_histogram_recorded_(false), background_color_(SK_ColorWHITE), has_transparent_background_(false), partial_texture_update_requests_(0), @@ -349,6 +350,8 @@ void LayerTreeHost::FinishCommitOnImplThread(LayerTreeHostImpl* host_impl) { sync_tree->PassSwapPromises(&swap_promise_list_); host_impl->SetUseGpuRasterization(UseGpuRasterization()); + RecordGpuRasterizationHistogram(); + host_impl->SetViewportSize(device_viewport_size_); host_impl->SetOverdrawBottomHeight(overdraw_bottom_height_); host_impl->SetDeviceScaleFactor(device_scale_factor_); @@ -584,6 +587,7 @@ void LayerTreeHost::SetRootLayer(scoped_refptr<Layer> root_layer) { // Reset gpu rasterization flag. // This flag is sticky until a new tree comes along. content_is_suitable_for_gpu_rasterization_ = true; + gpu_rasterization_histogram_recorded_ = false; SetNeedsFullTreeSync(); } @@ -737,6 +741,31 @@ static Layer* FindFirstScrollableLayer(Layer* layer) { return NULL; } +void LayerTreeHost::RecordGpuRasterizationHistogram() { + // Gpu rasterization is only supported when impl-side painting is enabled. + if (gpu_rasterization_histogram_recorded_ || !settings_.impl_side_painting) + return; + + // Record how widely gpu rasterization is enabled. + // This number takes device/gpu whitelisting/backlisting into account. + // Note that we do not consider the forced gpu rasterization mode, which is + // mostly used for debugging purposes. + UMA_HISTOGRAM_BOOLEAN("Renderer4.GpuRasterizationEnabled", + settings_.gpu_rasterization_enabled); + if (settings_.gpu_rasterization_enabled) { + UMA_HISTOGRAM_BOOLEAN("Renderer4.GpuRasterizationTriggered", + has_gpu_rasterization_trigger_); + UMA_HISTOGRAM_BOOLEAN("Renderer4.GpuRasterizationSuitableContent", + content_is_suitable_for_gpu_rasterization_); + // Record how many pages actually get gpu rasterization when enabled. + UMA_HISTOGRAM_BOOLEAN("Renderer4.GpuRasterizationUsed", + (has_gpu_rasterization_trigger_ && + content_is_suitable_for_gpu_rasterization_)); + } + + gpu_rasterization_histogram_recorded_ = true; +} + void LayerTreeHost::CalculateLCDTextMetricsCallback(Layer* layer) { if (!layer->SupportsLCDText()) return; diff --git a/cc/trees/layer_tree_host.h b/cc/trees/layer_tree_host.h index 793cd69..ef1782a 100644 --- a/cc/trees/layer_tree_host.h +++ b/cc/trees/layer_tree_host.h @@ -347,6 +347,7 @@ class CC_EXPORT LayerTreeHost { typedef std::list<UIResourceRequest> UIResourceRequestQueue; UIResourceRequestQueue ui_resource_request_queue_; + void RecordGpuRasterizationHistogram(); void CalculateLCDTextMetricsCallback(Layer* layer); void NotifySwapPromiseMonitorsOfSetNeedsCommit(); @@ -392,6 +393,7 @@ class CC_EXPORT LayerTreeHost { bool trigger_idle_updates_; bool has_gpu_rasterization_trigger_; bool content_is_suitable_for_gpu_rasterization_; + bool gpu_rasterization_histogram_recorded_; SkColor background_color_; bool has_transparent_background_; |