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

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Issue 2429953002: Implement compositor thread VSync aligned event queue (Closed)
Patch Set: dtapuska's review: Use TickClock; Remove compositor_event_queue_enabled_; Nits Created 4 years, 1 month 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 c7efa544e9762a5a207b8e61e5bf621dbca5065f..962cb70ef5d26ce6842cb5a69a8ce01cffa23f98 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -13461,6 +13461,47 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
</summary>
</histogram>
+<histogram name="Event.CompositorThreadEventQueue.CoalescedCount"
+ units="events">
+ <owner>chongz@chromium.org</owner>
+ <summary>
+ Number of continuous gesture events (GestureScrollUpdate,
+ GesturePinchUpdate) coalesced inside the compositor thread event queue per
+ event. This field is recorded just before the event is processed on the
+ compositor thread.
+ </summary>
+</histogram>
+
+<histogram name="Event.CompositorThreadEventQueue.Continuous.HeadQueueingTime"
+ units="microseconds">
+ <owner>chongz@chromium.org</owner>
+ <summary>
+ Time between the first event in a coalesced continuous gesture events group
+ (GestureScrollUpdate, GesturePinchUpdate) and when it was processed on the
+ compositor thread.
+ </summary>
+</histogram>
+
+<histogram name="Event.CompositorThreadEventQueue.Continuous.TailQueueingTime"
+ units="microseconds">
+ <owner>chongz@chromium.org</owner>
+ <summary>
+ Time between the last event in a coalesced continuous gesture events group
+ (GestureScrollUpdate, GesturePinchUpdate) and when it was processed on the
+ compositor thread.
+ </summary>
+</histogram>
+
+<histogram name="Event.CompositorThreadEventQueue.NonContinuous.QueueingTime"
+ units="microseconds">
+ <owner>chongz@chromium.org</owner>
+ <summary>
+ Time between when a non-continuous gesture event (GestureScrollStart/End,
+ GesturePinchStart/End) was placed into the queue and when it was processed
+ on the compositor thread.
+ </summary>
+</histogram>
+
<histogram name="Event.DownEventCount.PerDestination"
enum="DownEventDestination">
<owner>xiaoyinh@chromium.org</owner>
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