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18.8% regression in blink_perf.shadow_dom at 421602:421670 |
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Issue descriptionSee the link to graphs below.
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Sep 30 2016
Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/9000093760434568784
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Sep 30 2016
=== Auto-CCing suspected CL author csharrison@chromium.org === Hi csharrison@chromium.org, the bisect results pointed to your CL below as possibly causing a regression. Please have a look at this info and see whether your CL be related. ===== BISECT JOB RESULTS ===== Status: completed ===== SUSPECTED CL(s) ===== Subject : Add histograms for parseAuthorStyleSheet and updateStyle Author : csharrison Commit description: BUG= 642722 Review-Url: https://codereview.chromium.org/2344633005 Cr-Commit-Position: refs/heads/master@{#421659} Commit : 78f6cc334b7c0231a6a9a6fe6de9f7183c5796ce Date : Wed Sep 28 22:22:09 2016 ===== TESTED REVISIONS ===== Revision Mean Std Dev N Good? chromium@421601 102.836 2.9472 5 good chromium@421636 105.484 2.98905 5 good chromium@421653 105.113 0.243175 5 good chromium@421658 105.443 2.59893 5 good chromium@421659 122.831 1.33737 5 bad <-- chromium@421660 122.385 1.65997 5 bad chromium@421662 123.337 0.63783 5 bad chromium@421670 127.689 2.62638 5 bad Bisect job ran on: android_s5_perf_bisect Bug ID: 651807 Test Command: src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --upload-results --also-run-disabled-tests blink_perf.shadow_dom Test Metric: SmallDistributionWithLayout/SmallDistributionWithLayout Relative Change: 24.17% Score: 99.9 Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/android_s5_perf_bisect/builds/1047 Job details: https://chromeperf.appspot.com/buildbucket_job_status/9000093760434568784 Not what you expected? We'll investigate and get back to you! https://chromeperf.appspot.com/bad_bisect?try_job_id=6339255440244736 | 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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Sep 30 2016
Let's WontFix. This is a micro-benchmark and these metrics are temporary for the Lazy Parsing experiment. |
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Comment 1 by pmeenan@chromium.org
, Sep 30 2016