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12.5% regression in blink_perf.parser at 511113:511161 |
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Issue descriptionSee the link to graphs below.
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Oct 31 2017
Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8964186393816090272
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Nov 1 2017
=== Auto-CCing suspected CL author lizeb@chromium.org === Hi lizeb@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 : Benoit Lize Commit : d913be8e7e03161be7a03e2d6039e1632a31a08f Date : Tue Oct 24 13:38:27 2017 Subject: android: Fix typo in orderfile_generator.py. Bisect Details Configuration: android_webview_arm64_aosp_perf_bisect Benchmark : blink_perf.parser Metric : html5-full-render/html5-full-render Change : 0.24% | 18620.1450476 -> 18664.7428095 Revision Result N chromium@511112 18620.1 +- 208.684 21 good chromium@511125 18611.5 +- 46.8398 9 good chromium@511128 22972.2 +- 18518.4 9 good chromium@511130 29924.1 +- 17267.7 14 good chromium@511131 18659.6 +- 150.353 9 bad <-- chromium@511137 18723.3 +- 22.8713 6 bad chromium@511161 18664.7 +- 162.727 21 bad Please refer to the following doc on diagnosing blink_perf regressions: https://chromium.googlesource.com/chromium/src/+/master/docs/speed/benchmark_harnesses/blink_perf.md To Run This Test src/tools/perf/run_benchmark -v --browser=android-webview --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests blink_perf.parser More information on addressing performance regressions: http://g.co/ChromePerformanceRegressions Debug information about this bisect: https://chromeperf.appspot.com/buildbucket_job_status/8964186393816090272 For feedback, file a bug with component Speed>Bisection
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Nov 8 2017
The CL above fixes a bug in a bot that runs asynchronously every 3h, so a bisect cannot end up finding a regression caused by this CL. Re-assigning to brianderson@ for triage.
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Nov 8 2017
Graphs have recovered. |
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Comment 1 by 42576172...@developer.gserviceaccount.com
, Oct 31 2017