cc/trees/layer_tree_host_impl.cc - Issue 375093002: Initial attempt at counting layers in the compositor thread.

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Unified Diff: cc/trees/layer_tree_host_impl.cc

Issue 375093002: Initial attempt at counting layers in the compositor thread. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master

Patch Set: Use LayerTreeImpl::layer_id_map_.size() directly Created 6 years, 5 months ago

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Index: cc/trees/layer_tree_host_impl.cc

diff --git a/cc/trees/layer_tree_host_impl.cc b/cc/trees/layer_tree_host_impl.cc

index c3738e594734e6b5fd7df5d2fe9e6ca0191ba22e..0da6025a4faa7ecd856147fee3e0d0156130b1fb 100644

--- a/cc/trees/layer_tree_host_impl.cc

+++ b/cc/trees/layer_tree_host_impl.cc

@@ -1101,6 +1101,11 @@ DrawResult LayerTreeHostImpl::PrepareToDraw(FrameData* frame) {

}

need_to_update_visible_tiles_before_draw_ = true;

+ // Use a bucket width of 10 (i.e. 1000/100) to better

+ // capture the expected case where there are few layers.

+ UMA_HISTOGRAM_CUSTOM_COUNTS(

+ "Compositing.NumLayers", active_tree_->NumLayers(), 1, 1000, 100);

dneto 2014/07/10 20:15:57 Gah. Disregard. I changed the name of the histog

bool ok = active_tree_->UpdateDrawProperties();

DCHECK(ok) << "UpdateDrawProperties failed during draw";

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