Add tap latency UMA metric |
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Issue descriptionWe currently have no renderer specific performance information on touch tap latency.
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Jun 9 2016
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Jun 13 2016
The following revision refers to this bug: https://chromium.googlesource.com/chromium/src.git/+/018817f3af66b9c084982cb3944d2ce585d00370 commit 018817f3af66b9c084982cb3944d2ce585d00370 Author: tdresser <tdresser@chromium.org> Date: Mon Jun 13 20:23:03 2016 Measure queueing and blocking time for touchstart/touchend. Adds histograms for Event.Latency.QueueingTime.TouchStartDefaultPrevented Event.Latency.QueueingTime.TouchStartDefaultAllowed Event.Latency.BlockingTime.TouchStartDefaultPrevented Event.Latency.BlockingTime.TouchStartDefaultAllowed Event.Latency.QueueingTime.TouchEndDefaultPrevented Event.Latency.QueueingTime.TouchEndDefaultAllowed Event.Latency.BlockingTime.TouchEndDefaultPrevented Event.Latency.BlockingTime.TouchEndDefaultAllowed BUG= 600730 TEST=RenderWidgetHostLatencyTrackerTest.TouchBlockingAndQueueingTime Review-Url: https://codereview.chromium.org/2051853002 Cr-Commit-Position: refs/heads/master@{#399522} [modify] https://crrev.com/018817f3af66b9c084982cb3944d2ce585d00370/content/browser/renderer_host/input/render_widget_host_latency_tracker.cc [modify] https://crrev.com/018817f3af66b9c084982cb3944d2ce585d00370/content/browser/renderer_host/input/render_widget_host_latency_tracker_unittest.cc [modify] https://crrev.com/018817f3af66b9c084982cb3944d2ce585d00370/tools/metrics/histograms/histograms.xml
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Jun 14 2016
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Jun 15 2016
The following revision refers to this bug: https://chromium.googlesource.com/chromium/src.git/+/018817f3af66b9c084982cb3944d2ce585d00370 commit 018817f3af66b9c084982cb3944d2ce585d00370 Author: tdresser <tdresser@chromium.org> Date: Mon Jun 13 20:23:03 2016 Measure queueing and blocking time for touchstart/touchend. Adds histograms for Event.Latency.QueueingTime.TouchStartDefaultPrevented Event.Latency.QueueingTime.TouchStartDefaultAllowed Event.Latency.BlockingTime.TouchStartDefaultPrevented Event.Latency.BlockingTime.TouchStartDefaultAllowed Event.Latency.QueueingTime.TouchEndDefaultPrevented Event.Latency.QueueingTime.TouchEndDefaultAllowed Event.Latency.BlockingTime.TouchEndDefaultPrevented Event.Latency.BlockingTime.TouchEndDefaultAllowed BUG= 600730 TEST=RenderWidgetHostLatencyTrackerTest.TouchBlockingAndQueueingTime Review-Url: https://codereview.chromium.org/2051853002 Cr-Commit-Position: refs/heads/master@{#399522} [modify] https://crrev.com/018817f3af66b9c084982cb3944d2ce585d00370/content/browser/renderer_host/input/render_widget_host_latency_tracker.cc [modify] https://crrev.com/018817f3af66b9c084982cb3944d2ce585d00370/content/browser/renderer_host/input/render_widget_host_latency_tracker_unittest.cc [modify] https://crrev.com/018817f3af66b9c084982cb3944d2ce585d00370/tools/metrics/histograms/histograms.xml |
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Comment 1 by tdres...@chromium.org
, Jun 6 2016