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14.8% regression in blink_perf.paint at 440695:440708 |
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Issue descriptionSee the link to graphs below.
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Dec 29 2016
Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8991947236986956576
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Dec 29 2016
=== PERF REGRESSION === === Auto-CCing suspected CL author haraken@chromium.org === Hi haraken@chromium.org, the bisect results pointed to your CL, please take a look at the results. ===== BISECT JOB RESULTS ===== Status: completed ===== SUSPECTED CL(s) ===== Subject : Body should use ContextClient instead of ContextLifecycleObserver Author : haraken Commit description: ContextClient is more lightweight than ContextLifecycleObserver. We prefer ContextClient. BUG=610176 Review-Url: https://codereview.chromium.org/2605603002 Cr-Commit-Position: refs/heads/master@{#440697} Commit : 852b53148e04122ccb0c444dff6e8e0cc3939f26 Date : Mon Dec 26 08:32:36 2016 ===== TESTED REVISIONS ===== Revision Mean Std Dev N Good? chromium@440694 1001.91 81.5532 30 good chromium@440696 1006.16 151.573 30 good chromium@440697 1188.83 93.024 30 bad <-- chromium@440698 1121.45 86.5708 30 bad chromium@440701 1154.39 109.401 30 bad chromium@440708 1154.01 89.7821 30 bad Bisect job ran on: android_nexus7_perf_bisect Bug ID: 677475 Test Command: src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests blink_perf.paint Test Metric: large-table-background-change-with-invisible-collapsed-borders/large-table-background-change-with-invisible-collapsed-borders Relative Change: 15.18% Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/android_nexus7_perf_bisect/builds/3571 Job details: https://chromeperf.appspot.com/buildbucket_job_status/8991947236986956576 Not what you expected? We'll investigate and get back to you! https://chromeperf.appspot.com/bad_bisect?try_job_id=5781927854866432 | O O | Visit http://www.chromium.org/developers/speed-infra/perf-bug-faq | X | for more information addressing perf regression bugs. For feedback, | / \ | file a bug with component Tests>AutoBisect. Thank you!
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Jan 17 2017
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Aug 16 2017
After 8 months, there's likely not much we can do about this; WontFix-ing. Ccing owner of blink_perf.paing benchmark as FYI.
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Aug 16 2017
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Comment 1 by alexclarke@chromium.org
, Dec 29 2016