Sampling is needed for scrolling related UKM to reduce the size of the data |
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Issue descriptionThere seems to be a ton of data being reported particularly for Event.ScrollUpdate.Touch. With some sampling we can reduce the size of the data being reported.
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Jul 19 2017
The following revision refers to this bug: https://chromium.googlesource.com/chromium/src.git/+/bc43f74097a2452f5238c2922b87a84bfd70a528 commit bc43f74097a2452f5238c2922b87a84bfd70a528 Author: nzolghadr <nzolghadr@chromium.org> Date: Wed Jul 19 17:35:10 2017 Add a sampling scheme to ScrollUpdate.Touch UKM There was a lot of data being reported as part of the Event.ScrollUpdate.Touch UKM. For now we decided to reduce the volume of the data by a simple sampling scheme until we find a more permanent solution. BUG= 742363 Review-Url: https://codereview.chromium.org/2976113002 Cr-Commit-Position: refs/heads/master@{#487904} [modify] https://crrev.com/bc43f74097a2452f5238c2922b87a84bfd70a528/content/browser/renderer_host/input/render_widget_host_latency_tracker.cc [modify] https://crrev.com/bc43f74097a2452f5238c2922b87a84bfd70a528/content/browser/renderer_host/input/render_widget_host_latency_tracker.h [modify] https://crrev.com/bc43f74097a2452f5238c2922b87a84bfd70a528/content/browser/renderer_host/input/render_widget_host_latency_tracker_unittest.cc [modify] https://crrev.com/bc43f74097a2452f5238c2922b87a84bfd70a528/content/browser/renderer_host/render_widget_host_impl.cc
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Sep 27 2017
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Comment 1 by nzolghadr@chromium.org
, Jul 13 2017