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12.3%-18% regression in thread_times.simple_mobile_sites at 429004:429317 |
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Issue descriptionSee the link to graphs below.
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Nov 7 2016
Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8996614082146227552
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Nov 8 2016
===== BISECT JOB RESULTS ===== Status: completed ===== SUSPECTED CL(s) ===== Subject : Add crash keys to TaskQueueManager::ProcessTaskFromWorkQueue Author : alexclarke Commit description: We suspect a bad task closure is getting posted and would like to add crash keys to aid diagnosis. BUG=660427 Review-Url: https://codereview.chromium.org/2464853002 Cr-Commit-Position: refs/heads/master@{#429285} Commit : c08c078b27b353f4ab8de7deccfb862270b1ff2a Date : Wed Nov 02 15:49:06 2016 ===== TESTED REVISIONS ===== Revision Mean Std Dev N Good? chromium@429245 5.88962 0.146404 5 good chromium@429268 6.00371 0.178636 5 good chromium@429280 5.90275 0.115297 5 good chromium@429283 5.98246 0.163354 8 good chromium@429284 6.23752 0.141288 8 good chromium@429285 6.56915 0.217164 8 bad <-- chromium@429286 6.38968 0.216309 5 bad chromium@429291 6.36502 0.112958 5 bad Bisect job ran on: android_nexus5_perf_bisect Bug ID: 663087 Test Command: src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests thread_times.key_mobile_sites_smooth Test Metric: thread_renderer_main_cpu_time_per_frame/thread_renderer_main_cpu_time_per_frame Relative Change: 8.07% Score: 99.9 Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/android_nexus5_perf_bisect/builds/4324 Job details: https://chromeperf.appspot.com/buildbucket_job_status/8996614082146227552 Not what you expected? We'll investigate and get back to you! https://chromeperf.appspot.com/bad_bisect?try_job_id=5894076673556480 | 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 briander...@chromium.org
, Nov 7 2016