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17.2% regression in blink_perf.paint at 465179:465207 |
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Issue descriptionSee the link to graphs below.
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Apr 20 2017
Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8981811066642433584
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Apr 20 2017
=== BISECT JOB RESULTS === Perf regression found with culprit Suspected Commit Author : hidehiko Commit : ddefb10bee663f8d240c999309f37cc2f96d2e92 Date : Tue Apr 18 11:14:53 2017 Subject: Revert of Back PaintRecord with PaintOpBuffer instead of SkPicture (patchset #42 id:810001 of https://codereview.chromium.org/2768143002/ ) Bisect Details Configuration: android_nexus7_perf_bisect Benchmark : blink_perf.paint Metric : large-table-background-change-with-visible-collapsed-borders/large-table-background-change-with-visible-collapsed-borders Change : 19.21% | 896.050583333 -> 1068.16908333 Revision Result N chromium@465178 896.051 +- 29.0576 6 good chromium@465193 945.539 +- 19.794 6 good chromium@465195 946.355 +- 16.2411 6 good chromium@465196 1054.38 +- 25.5697 6 bad <-- chromium@465197 1090.28 +- 17.0615 6 bad chromium@465200 1046.82 +- 31.9729 6 bad chromium@465207 1068.17 +- 14.2454 6 bad To Run This Test src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests blink_perf.paint Debug Info https://chromeperf.appspot.com/buildbucket_job_status/8981811066642433584 Is this bisect wrong? https://chromeperf.appspot.com/bad_bisect?try_job_id=6653867896340480 | 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 Speed>Bisection. Thank you! |
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Comment 1 by alexclarke@chromium.org
, Apr 20 2017