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30.8% regression in blink_perf.css at 456321:456342 |
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Issue descriptionSee the link to graphs below.
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Mar 15 2017
Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8985038970899296944
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Mar 15 2017
=== BISECT JOB RESULTS === Perf regression found with culprit Suspected Commit Author : meade Commit : 3a001533b29c0fe28f2354285b2c2ac8d57d8ce6 Date : Mon Mar 13 05:26:20 2017 Subject: Un-DCHECK-guard ThreadRestrictionVerifier for strings. Bisect Details Configuration: android_one_perf_bisect Benchmark : blink_perf.css Metric : AttributeDescendantSelector/AttributeDescendantSelector Change : 32.21% | 28.6361755821 -> 19.4118028299 Revision Result N chromium@456320 28.6362 +- 0.228166 6 good chromium@456322 28.769 +- 0.115399 6 good chromium@456323 18.5149 +- 0.982179 6 bad <-- chromium@456326 19.2618 +- 0.822548 6 bad chromium@456331 19.0098 +- 0.244034 6 bad chromium@456342 19.4118 +- 0.352783 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.css Debug Info https://chromeperf.appspot.com/buildbucket_job_status/8985038970899296944 Is this bisect wrong? https://chromeperf.appspot.com/bad_bisect?try_job_id=5289261865107456 | 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 nzolghadr@chromium.org
, Mar 15 2017