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

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Issue 921473003: Break down end-to-end scroll update latency UMA metrics (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Created 5 years, 10 months ago
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« content/browser/renderer_host/render_widget_host_latency_tracker.cc ('K') | « content/browser/renderer_host/render_widget_host_latency_tracker.cc ('k') | ui/events/latency_info.h » ('j') | no next file with comments »
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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 efdddecd19ca5885dc478f3a01ffe01ba4a1859b..43a6e03459fef70235b1592381ef3b51a5e35d97 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -7311,6 +7311,70 @@ Therefore, the affected-histogram name has to have at least one dot in it.
</summary>
</histogram>
+<histogram name="Event.Latency.ScrollUpdateBrowserNotifiedToBeforeGpuSwap"
+ units="microseconds">
+ <owner>rbyers@chromium.org</owner>
+ <summary>
+ Time between the browser receives the notification of a ScrollUpdate gesture
+ event induced renderer swap and GPU starts to swap.
+ </summary>
+</histogram>
+
+<histogram name="Event.Latency.ScrollUpdateGpuSwap" units="microseconds">
+ <owner>rbyers@chromium.org</owner>
+ <summary>
+ Time between gpu starts to swap a ScrollUpdate gesture event induced frame
+ and the swap finishes.
+ </summary>
+</histogram>
+
+<histogram name="Event.Latency.ScrollUpdateHandledImplToRendererSwap"
+ units="microseconds">
+ <owner>rbyers@chromium.org</owner>
+ <summary>
+ Time between the ScrollUpdate gesture event is handled on main thread and
+ before renderer starts to swap.
+ </summary>
+</histogram>
+
+<histogram name="Event.Latency.ScrollUpdateHandledMainToRendererSwap"
+ units="microseconds">
+ <owner>rbyers@chromium.org</owner>
+ <summary>
+ Time between the ScrollUpdate gesture event is handled on impl thread and
+ before renderer starts to swap.
+ </summary>
+</histogram>
+
+<histogram name="Event.Latency.ScrollUpdateRendererSwapToBrowserNotified"
+ units="microseconds">
+ <owner>rbyers@chromium.org</owner>
+ <summary>
+ Time between the renderer starts to swap a frame induced by ScrollUpdate
+ gesture event and browser receives the swap notification.
+ </summary>
+</histogram>
+
+<histogram name="Event.Latency.ScrollUpdateTouchToHandledImpl"
+ units="microseconds">
+ <owner>rbyers@chromium.org</owner>
+ <summary>
+ Time between initial creation of a touch event and the generated
+ ScrollUpdate gesture event is handled on impl thread. If no swap was induced
+ by the ScrollUpdate gesture event, no recording is made.
+ </summary>
+</histogram>
+
+<histogram name="Event.Latency.ScrollUpdateTouchToHandledMain"
+ units="microseconds">
+ <owner>rbyers@chromium.org</owner>
+ <summary>
+ Time between initial creation of a touch event and the generated
+ ScrollUpdate gesture event is handled on main thread. If no swap was induced
+ by the ScrollUpdate gesture event, no recording is made.
+ </summary>
+</histogram>
+
<histogram name="Event.Latency.TouchToFirstScrollUpdateSwap"
units="microseconds">
<owner>rbyers@chromium.org</owner>
« content/browser/renderer_host/render_widget_host_latency_tracker.cc ('K') | « content/browser/renderer_host/render_widget_host_latency_tracker.cc ('k') | ui/events/latency_info.h » ('j') | no next file with comments »

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