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63% improvement in system_health.common_desktop at 463520:463909 |
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Issue descriptionSee the link to graphs below.
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Apr 26 2017
Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8981215631966137936
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Apr 27 2017
=== BISECT JOB RESULTS === Perf regression found with culprit Suspected Commit Author : delphick Commit : d8ade60fbe0ea954ecd5f186c36e6d0ac045c28c Date : Tue Apr 11 09:56:28 2017 Subject: No longer clamp setTimeout(..., 0) to 1ms. Bisect Details Configuration: mac_retina_perf_bisect Benchmark : system_health.common_desktop Metric : timeToFirstMeaningfulPaint_avg/browse_news/browse_news_flipboard Change : 61.99% | 1837.33183333 -> 698.293333333 Revision Result N chromium@463519 1837.33 +- 196.068 6 good chromium@463568 1834.45 +- 182.302 6 good chromium@463581 1814.71 +- 163.603 6 good chromium@463587 1823.66 +- 181.814 6 good chromium@463590 1839.9 +- 264.011 6 good chromium@463591 693.463 +- 19.3158 6 bad <-- chromium@463592 688.002 +- 24.2158 6 bad chromium@463593 690.345 +- 13.5337 6 bad chromium@463617 688.332 +- 23.8218 6 bad chromium@463714 687.402 +- 15.4173 6 bad chromium@463909 698.293 +- 66.6825 6 bad To Run This Test src/tools/perf/run_benchmark -v --browser=release --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=browse.news.flipboard system_health.common_desktop Debug Info https://chromeperf.appspot.com/buildbucket_job_status/8981215631966137936 Is this bisect wrong? https://chromeperf.appspot.com/bad_bisect?try_job_id=4947913496592384 | 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 samans@chromium.org
, Apr 26 2017