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Unified Diff: tools/metrics/histograms/histograms.xml

Issue 2655853004: cc : Add UMA metric for finding closest matching layer to a point (Closed)
Patch Set: comment Created 3 years, 11 months ago
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Index: tools/metrics/histograms/histograms.xml
diff --git a/tools/metrics/histograms/histograms.xml b/tools/metrics/histograms/histograms.xml
index 01cd2358bd35ba5ad2a6e38a21d3cb161b54b930..938ce052f46046ef6fae85e7ca64f03a975c80c5 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -7108,6 +7108,15 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
</summary>
</histogram>
+<histogram name="Compositing.LayerTreeImpl.FindClosestMatchingLayerUs"
+ units="microseconds">
+ <owner>paint-dev@chromium.org</owner>
+ <summary>
+ Time spent finding the closest matching layer to a given point, in
+ microseconds. Recorded each time we do hit testing on LayerTreeImpl.
+ </summary>
+</histogram>
+
<histogram name="Compositing.NumActiveLayers">
<obsolete>
Deprecated 04/2016, replaced by similar metrics under Compositing.Renderer
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