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17.7%-31.5% regression in blink_perf.paint at 482174:482179 |
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Issue descriptionSee the link to graphs below.
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Jun 28 2017
Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8975580839481528288
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Jun 28 2017
=== Auto-CCing suspected CL author wangxianzhu@chromium.org === Hi wangxianzhu@chromium.org, the bisect results pointed to your CL, please take a look at the results. === BISECT JOB RESULTS === Perf regression found with culprit Suspected Commit Author : Xianzhu Wang Commit : 94e1d1e92fa1d4734de08210747d36126ce235aa Date : Sun Jun 25 21:49:01 2017 Subject: Paint all collapsed borders of a row (or table) as one display item Bisect Details Configuration: winx64nvidia_perf_bisect Benchmark : blink_perf.paint Metric : large-table-repaint/large-table-repaint Change : 31.65% | 142.121333333 -> 187.1065 Revision Result N chromium@482173 142.121 +- 3.96894 6 good chromium@482175 141.76 +- 10.9931 6 good chromium@482176 187.107 +- 5.62592 6 bad <-- To Run This Test src/tools/perf/run_benchmark -v --browser=release_x64 --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests blink_perf.paint Debug Info https://chromeperf.appspot.com/buildbucket_job_status/8975580839481528288 Is this bisect wrong? https://chromeperf.appspot.com/bad_bisect?try_job_id=6414202102611968 | 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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Jun 28 2017
The CL improved more benchmarks. See: https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgrveL7ggM (Click "Hide All Improvements" then "Show All Improvements")
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Jul 1 2017
Issue 738132 has been merged into this issue. |
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Comment 1 by sullivan@chromium.org
, Jun 28 2017