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10.3% regression in blink_perf.svg at 419612:419653 |
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Issue descriptionSee the link to graphs below.
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Sep 21 2016
Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/9000920493671694736
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Sep 21 2016
===== BISECT JOB RESULTS ===== Status: completed ===== SUSPECTED CL(s) ===== Subject : cc: Remove estimated parent draw time from renderer Author : enne Commit description: This is a display scheduler only concept now that unified begin frame is turned on. Renderers can just use the deadline passed to them from the top level begin frame source. This fixes a regression from https://codereview.chromium.org/2299003002 where Android was using the incorrect parent estimated draw time of none and so thought it had less time for frames than it did. R=brianderson@chromium.org BUG= 646377 CQ_INCLUDE_TRYBOTS=master.tryserver.blink:linux_precise_blink_rel Review-Url: https://codereview.chromium.org/2352823002 Cr-Commit-Position: refs/heads/master@{#419617} Commit : bfdea7f114aded7866981b8bfe3edd0c75155f12 Date : Tue Sep 20 01:11:26 2016 ===== TESTED REVISIONS ===== Revision Mean Std Dev N Good? chromium@419611 248.34 3.28688 5 good chromium@419614 247.479 1.21675 5 good chromium@419616 248.372 3.9694 5 good chromium@419617 277.788 6.52722 5 bad <-- chromium@419622 276.348 6.29028 5 bad chromium@419632 276.061 5.20483 5 bad chromium@419653 272.03 4.81223 5 bad Bisect job ran on: win_x64_perf_bisect Bug ID: 648913 Test Command: src/tools/perf/run_benchmark -v --browser=release_x64 --output-format=chartjson --upload-results --also-run-disabled-tests blink_perf.svg Test Metric: Cowboy_transform/Cowboy_transform Relative Change: 9.54% Score: 99.9 Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/win_x64_perf_bisect/builds/1476 Job details: https://chromeperf.appspot.com/buildbucket_job_status/9000920493671694736 Not what you expected? We'll investigate and get back to you! https://chromeperf.appspot.com/bad_bisect?try_job_id=6340310165094400 | 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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Comment 1 by toyoshim@chromium.org
, Sep 21 2016