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51.7%-61.3% regression in v8.infinite_scroll-classic_tbmv2 at 467618:467688 |
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Issue descriptionThese infinite_scroll* benchmarks each increase by 10 minutes (12 min --> 22 mins).
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May 2 2017
Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8980743801698539008
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May 2 2017
ulan@: we are having a crisis in term of bot runtime (issue 713345). A 10 minutes cycle time increase without new tests is not great. Can you take a look at this?
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May 2 2017
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May 2 2017
> Can you take a look at this? Sure. Nothing stands out in the regression range. I hope the bisect will pinpoint the culprit.
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May 2 2017
=== BISECT JOB RESULTS === Perf regression found with culprit Suspected Commit Author : altimin Commit : c18764a33a595baab6ba35a1447e51c7c74b6e30 Date : Thu Apr 27 10:39:19 2017 Subject: [scheduler] Move some task types to suspendable task runner. Bisect Details Configuration: win_x64_perf_bisect Benchmark : v8.infinite_scroll_tbmv2 Metric : benchmark_duration/benchmark_duration Change : 47.24% | 12.6872833318 -> 18.6807222221 Revision Result N chromium@467617 12.6873 +- 0.38887 6 good chromium@467627 12.5636 +- 0.154834 6 good chromium@467632 12.5582 +- 0.135781 6 good chromium@467633 18.2466 +- 3.41853 6 bad <-- chromium@467634 17.953 +- 4.83109 6 bad chromium@467635 18.2096 +- 3.3936 6 bad chromium@467637 17.4595 +- 4.01568 6 bad chromium@467657 18.6807 +- 4.51232 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 v8.infinite_scroll_tbmv2 Debug Info https://chromeperf.appspot.com/buildbucket_job_status/8980743801698539008 Is this bisect wrong? https://chromeperf.appspot.com/bad_bisect?try_job_id=5556956300836864 | 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 nedngu...@google.com
, May 2 2017