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3.9%-23.7% regression in v8.browsing_mobile at 481826:481898 |
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Issue descriptionSee the link to graphs below.
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Jun 28 2017
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Jun 29 2017
=== BISECT JOB RESULTS === Perf regression found but unable to narrow commit range Build failures prevented the bisect from narrowing the range further. Bisect Details Configuration: android_one_perf_bisect Benchmark : v8.browsing_mobile Metric : v8-gc-scavenger_sum/browse_social/browse_social_facebook Change : 13.10% | 362.526666667 -> 404.288777778 Suspected Commit Range 3 commits in range https://chromium.googlesource.com/v8/v8.git/+log/e65aeada27fbf147f5758efe7f7c90f48bd0cae5..1541f422a7f57e5c5eb3c39477f62a75a184f63e Revision Result N chromium@481825 362.527 +- 39.4687 6 good chromium@481847 373.797 +- 43.6246 14 good chromium@481847,v8@e65aeada27 367.921 +- 43.7959 14 good chromium@481847,v8@a37f95ff54 --- --- build failure chromium@481847,v8@116363258d --- --- build failure chromium@481847,v8@1541f422a7 381.784 +- 49.9303 14 bad chromium@481848 391.178 +- 31.3746 9 bad chromium@481849 394.817 +- 45.8314 9 bad chromium@481850 393.837 +- 57.031 14 bad chromium@481853 398.652 +- 45.9993 9 bad chromium@481858 390.209 +- 56.1853 14 bad chromium@481868 404.289 +- 55.0508 9 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 --story-filter=browse.social.facebook v8.browsing_mobile Debug Info https://chromeperf.appspot.com/buildbucket_job_status/8975553821215977040 Is this bisect wrong? https://chromeperf.appspot.com/bad_bisect?try_job_id=5701202634866688 | 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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Jun 29 2017
Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8975452724792790192
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Jun 29 2017
Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8975451726261251808
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Jun 29 2017
=== BISECT JOB RESULTS === Bisect failed for unknown reasons Please contact the team (see below) and report the error. Bisect Details Configuration: android_nexus5_perf_bisect Benchmark : v8.browsing_mobile Metric : v8-gc-scavenger_sum/browse_social/browse_social_instagram 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 --story-filter=browse.social.instagram v8.browsing_mobile Debug Info https://chromeperf.appspot.com/buildbucket_job_status/8975451726261251808 Is this bisect wrong? https://chromeperf.appspot.com/bad_bisect?try_job_id=5264661085159424 | 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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Jun 29 2017
Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8975448907251001600
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Jun 29 2017
=== BISECT JOB RESULTS === Bisect failed for unknown reasons Please contact the team (see below) and report the error. Bisect Details Configuration: android_nexus5_perf_bisect Benchmark : v8.browsing_mobile Metric : v8-gc-scavenger_sum/browse_social/browse_social_instagram 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 --story-filter=browse.social.instagram v8.browsing_mobile Debug Info https://chromeperf.appspot.com/buildbucket_job_status/8975448907251001600 Is this bisect wrong? https://chromeperf.appspot.com/bad_bisect?try_job_id=5264661085159424 | 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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Jun 29 2017
=== BISECT JOB RESULTS === Perf regression found with culprit Suspected Commit Author : Michael Lippautz Commit : 07b1113252bd487aa20d6459e03d125edf6d5e47 Date : Fri Jun 23 08:35:51 2017 Subject: [heap] Move first-level on Scavenger to instance-based visitor Bisect Details Configuration: android_nexus5_perf_bisect Benchmark : v8.browsing_mobile Metric : v8-gc-scavenger_sum/browse_social/browse_social_instagram Change : 8.69% | 269.964666667 -> 293.437166667 Revision Result N chromium@481845 269.965 +- 11.7209 6 good chromium@481847 279.792 +- 13.5388 9 good chromium@481847,v8@e65aeada27 274.413 +- 13.7938 6 good chromium@481847,v8@1541f422a7 275.238 +- 8.36415 6 good chromium@481847,v8@07b1113252 290.019 +- 15.4302 6 bad <-- chromium@481847,v8@a7e622ba33 290.958 +- 11.152 6 bad chromium@481848 293.8 +- 9.874 6 bad chromium@481849 290.575 +- 11.9888 6 bad chromium@481852 292.02 +- 8.59865 6 bad chromium@481859 293.177 +- 11.3692 6 bad chromium@481872 290.012 +- 9.63366 6 bad chromium@481898 293.437 +- 12.8774 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 --story-filter=browse.social.instagram v8.browsing_mobile More information on addressing performance regressions: http://g.co/ChromePerformanceRegressions Debug information about this bisect: https://chromeperf.appspot.com/buildbucket_job_status/8975452724792790192 For feedback, file a bug with component Speed>Bisection |
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Comment 1 by 42576172...@developer.gserviceaccount.com
, Jun 28 2017