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18.5% regression in v8.mobile_infinite_scroll_tbmv2 at 443354:443443 |
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Issue descriptionSee the link to graphs below.
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Jan 16 2017
Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8990282808197371280
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Jan 17 2017
=== BISECT JOB RESULTS === Perf regression found with culprit Suspected Commit Author : mvstanton Commit : b8294aaa978e972978b8d82cedf63befad5d7af1 Date : Thu Jan 12 11:29:09 2017 Subject: [TypeFeedbackVector] Root literal arrays in function literals slots Bisect Details Configuration: android_nexus5_perf_bisect Benchmark : v8.mobile_infinite_scroll_tbmv2 Metric : v8-gc-scavenger_max/v8-gc-scavenger_max Change : 12.73% | 36.616125 -> 41.275875 Revision Result N chromium@443353 36.6161 +- 2.77805 6 good chromium@443398 36.7882 +- 3.50541 6 good chromium@443400 36.8842 +- 5.02569 8 good chromium@443400,v8@2bca05685f 37.7729 +- 6.20743 9 good chromium@443400,v8@b8294aaa97 41.5633 +- 2.61096 6 bad <-- chromium@443400,v8@81c62e070b 41.9242 +- 1.56059 6 bad chromium@443400,v8@9884fb91e1 41.8125 +- 4.0065 6 bad chromium@443400,v8@aa75904e3c 40.8743 +- 3.93958 9 bad chromium@443401 41.3988 +- 4.89724 6 bad chromium@443404 41.3207 +- 3.47445 6 bad chromium@443410 40.3468 +- 2.58809 6 bad chromium@443421 41.2504 +- 2.00489 6 bad chromium@443443 41.2759 +- 3.54379 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 v8.mobile_infinite_scroll_tbmv2 Debug Info https://chromeperf.appspot.com/buildbucket_job_status/8990282808197371280 Is this bisect wrong? https://chromeperf.appspot.com/bad_bisect?try_job_id=5860458919100416 | 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 Tests>AutoBisect. Thank you! |
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Comment 1 by nzolghadr@chromium.org
, Jan 16 2017