An end of tab lifetime UKM is needed for too many tabs. |
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Issue descriptionAn existing suite of UKMs is missing one key metric which can be used as a denominator, and enabling a full quantification of expected impact of the discarding intervention. New metric proposed here (Google only): https://docs.google.com/document/d/17hJCMVvAekGTiBDOcNZS68MrGp2oQbEweZ8vWyiM31E/edit#
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Nov 1 2017
The following revision refers to this bug: https://chromium.googlesource.com/chromium/src.git/+/416c98ec72061848719dbd9dd1a925c60f90f84e commit 416c98ec72061848719dbd9dd1a925c60f90f84e Author: Chris Hamilton <chrisha@chromium.org> Date: Wed Nov 01 23:04:29 2017 Create TabManager.TabLifetime UKM. BUG=776376 Change-Id: I85295f70e14f216c11ecf6c334ee2a39990a9672 Reviewed-on: https://chromium-review.googlesource.com/746532 Commit-Queue: Chris Hamilton <chrisha@chromium.org> Reviewed-by: Steven Holte <holte@chromium.org> Cr-Commit-Position: refs/heads/master@{#513310} [modify] https://crrev.com/416c98ec72061848719dbd9dd1a925c60f90f84e/chrome/browser/resource_coordinator/tab_manager_web_contents_data.cc [modify] https://crrev.com/416c98ec72061848719dbd9dd1a925c60f90f84e/chrome/browser/resource_coordinator/tab_manager_web_contents_data.h [modify] https://crrev.com/416c98ec72061848719dbd9dd1a925c60f90f84e/tools/metrics/ukm/ukm.xml |
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Comment 1 by chrisha@chromium.org
, Oct 31 2017