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3% regression in speedometer at 443389:443443 |
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Issue descriptionSee the link to graphs below.
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Jan 13 2017
Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8990565220443776576
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Jan 14 2017
=== Auto-CCing suspected CL author jkummerow@chromium.org === Hi jkummerow@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 : jkummerow Commit : b4654bf30e63499dd689472bcfde7fbf8c7484c7 Date : Thu Jan 12 15:00:19 2017 Subject: Revert of Internalize strings in-place (patchset #20 id:380001 of https://codereview.chromium.org/2549773002/ ) Bisect Details Configuration: android_nexus6_perf_bisect Benchmark : speedometer Metric : Total/Total Change : 2.82% | 28683.2283333 -> 29492.9269444 Revision Result N chromium@443389 28683.2 +- 384.282 6 good chromium@443396 28870.6 +- 397.455 6 good chromium@443400 28807.0 +- 605.669 14 good chromium@443400,v8@aa75904e3c 28724.6 +- 84.2359 3 good chromium@443400,v8@b4654bf30e 29696.8 +- 624.458 14 bad <-- chromium@443400,v8@ee2f07b677 29673.9 +- 518.84 14 bad chromium@443400,v8@aff64e9dfa 29595.3 +- 551.969 14 bad chromium@443400,v8@53137df89a 29646.7 +- 591.799 14 bad chromium@443401 29539.9 +- 556.891 14 bad chromium@443402 29616.2 +- 494.63 6 bad chromium@443403 29616.8 +- 466.42 6 bad chromium@443416 29705.8 +- 335.841 6 bad chromium@443443 29492.9 +- 386.838 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 speedometer Debug Info https://chromeperf.appspot.com/buildbucket_job_status/8990565220443776576 Is this bisect wrong? https://chromeperf.appspot.com/bad_bisect?try_job_id=5340360257044480 | 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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Feb 3 2017
This bug has an owner, but was in a state that our triage picked up. Marking as Assigned.
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Feb 3 2017
Bisect is bogus, the supposed culprit wasn't even in the range (it had been hand-picked into the previous V8 roll).
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Aug 16 2017
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Comment 1 by nzolghadr@chromium.org
, Jan 13 2017