Add more targeted metrics for Loading Dispatcher v0 |
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Issue descriptionExisting metrics ( issue 729951 ) were not sufficiently targeted at the use case to capture the expected benefits. Also we didn’t have targeted metrics for responsiveness and interactivity metrics. We will re-run the experiment after adding more aggressively targeted metrics such as: - Responsiveness and Interactivity metrics for the foreground tab when [1/2/4/6/8/10/10+] bg tabs are still loading. - Page Load metrics for the foreground tab when [1/2/4/6/8/10/10+] bg tabs are still loading.
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Dec 7 2017
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Dec 14 2017
"Number of inflight loading tabs" UMA data from Canary channel comes in. Desktop: - only 1 inflight loading tab: 61% - 2~4 inflight loading tabs: 27% - 5~ inflight loading tabs: 11% Android: - only 1 inflight loading tab: 86% - 2~4 inflight loading tabs: 13% - 5~ inflight loading tabs: 1% Based on that, I'm going to add two variants of MultiTabLoading metrics: - MultiTabLoading.2OrMore: recorded only when there are 2 or more inflight loading tabs - MultiTabLoading.5OrMore: recorded only when there are 5 or more inflight loading tabs
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Dec 15 2017
The following revision refers to this bug: https://chromium.googlesource.com/chromium/src.git/+/428cfddddbf57ccc323ca2b4c633c30842e10a28 commit 428cfddddbf57ccc323ca2b4c633c30842e10a28 Author: Kunihiko Sakamoto <ksakamoto@chromium.org> Date: Fri Dec 15 05:07:30 2017 Add more aggressively targeted variants of MultiTabLoading metrics This adds variants of PageLoad.Clients.MultiTabLoading.* metrics that are recorded only when there are >=2 (or >=5) inflight loading tabs. Bug: 792759 Change-Id: Ic1c8711d6424752dd80685b7740ec12fcc1c885e Reviewed-on: https://chromium-review.googlesource.com/826706 Reviewed-by: Kinuko Yasuda <kinuko@chromium.org> Reviewed-by: Takashi Toyoshima <toyoshim@chromium.org> Reviewed-by: Ilya Sherman <isherman@chromium.org> Commit-Queue: Kunihiko Sakamoto <ksakamoto@chromium.org> Cr-Commit-Position: refs/heads/master@{#524329} [modify] https://crrev.com/428cfddddbf57ccc323ca2b4c633c30842e10a28/chrome/browser/BUILD.gn [modify] https://crrev.com/428cfddddbf57ccc323ca2b4c633c30842e10a28/chrome/browser/page_load_metrics/observers/data_reduction_proxy_metrics_observer.cc [modify] https://crrev.com/428cfddddbf57ccc323ca2b4c633c30842e10a28/chrome/browser/page_load_metrics/observers/data_reduction_proxy_metrics_observer_unittest.cc [add] https://crrev.com/428cfddddbf57ccc323ca2b4c633c30842e10a28/chrome/browser/page_load_metrics/observers/histogram_suffixes.cc [add] https://crrev.com/428cfddddbf57ccc323ca2b4c633c30842e10a28/chrome/browser/page_load_metrics/observers/histogram_suffixes.h [modify] https://crrev.com/428cfddddbf57ccc323ca2b4c633c30842e10a28/chrome/browser/page_load_metrics/observers/multi_tab_loading_page_load_metrics_observer.cc [modify] https://crrev.com/428cfddddbf57ccc323ca2b4c633c30842e10a28/chrome/browser/page_load_metrics/observers/multi_tab_loading_page_load_metrics_observer.h [modify] https://crrev.com/428cfddddbf57ccc323ca2b4c633c30842e10a28/chrome/browser/page_load_metrics/observers/multi_tab_loading_page_load_metrics_observer_browsertest.cc [modify] https://crrev.com/428cfddddbf57ccc323ca2b4c633c30842e10a28/chrome/browser/page_load_metrics/observers/multi_tab_loading_page_load_metrics_observer_unittest.cc [modify] https://crrev.com/428cfddddbf57ccc323ca2b4c633c30842e10a28/tools/metrics/histograms/histograms.xml
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Dec 18 2017
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Mar 23 2018
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Comment 1 by bugdroid1@chromium.org
, Dec 7 2017