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29.3%-89.8% regression in blink_perf.bindings at 459641:459648 |
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Issue descriptionSee the link to graphs below.
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Mar 27 2017
Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8983987350440105936
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Mar 27 2017
=== BISECT JOB RESULTS === Perf regression found with culprit Suspected Commit Author : Peter Marshall Commit : 14e01da1cf6c02628252ed267ca5043f44d63a5d Date : Fri Mar 24 17:40:22 2017 Subject: [builtins] Port TypedArrayConstructByArrayLike to CodeStubAssembler. Bisect Details Configuration: android_nexus7_perf_bisect Benchmark : blink_perf.bindings Metric : typed-array-construct-from-array/typed-array-construct-from-array Change : 31.77% | 3.27830170017 -> 2.23679863302 Revision Result N chromium@459640 3.2783 +- 0.0947473 6 good chromium@459642 3.27692 +- 0.106214 6 good chromium@459642,v8@7273f7011a 3.49841 +- 0.29368 5 good chromium@459642,v8@7e08a77deb 3.42956 +- 0.0952439 6 good chromium@459642,v8@14e01da1cf 2.20575 +- 0.075152 6 bad <-- chromium@459642,v8@5fdb5a148e 2.23538 +- 0.107649 6 bad chromium@459643 2.2368 +- 0.0828408 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 blink_perf.bindings Debug Info https://chromeperf.appspot.com/buildbucket_job_status/8983987350440105936 Is this bisect wrong? https://chromeperf.appspot.com/bad_bisect?try_job_id=5497759559319552 | 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 toyoshim@chromium.org
, Mar 27 2017