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10.3%-50.5% regression in smoothness.top_25_smooth at 480336:480369 |
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Issue descriptionSee the link to graphs below.
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Jun 21 2017
Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8976141030730660272
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Jun 21 2017
=== BISECT JOB RESULTS === Perf regression found with culprit Suspected Commit Author : Yutaka Hirano Commit : 84047549ac37bab70d7306566c912e59131f3e1f Date : Mon Jun 19 04:16:15 2017 Subject: [Loading] Save one post-task when the data pipe is ready on arrival Bisect Details Configuration: android_nexus5_perf_bisect Benchmark : smoothness.top_25_smooth Metric : mean_input_event_latency/http___sports.yahoo.com_ Change : 77.00% | 16.4768333333 -> 29.1643333333 Revision Result N chromium@480335 16.4768 +- 2.61099 6 good chromium@480340 17.0547 +- 3.00644 6 good chromium@480341 18.6872 +- 1.67337 6 good chromium@480342 25.7353 +- 7.20177 6 bad <-- chromium@480344 24.9128 +- 8.21408 6 bad chromium@480352 27.844 +- 10.1607 6 bad chromium@480369 29.1643 +- 6.59756 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=http...sports.yahoo.com. smoothness.top_25_smooth Debug Info https://chromeperf.appspot.com/buildbucket_job_status/8976141030730660272 Is this bisect wrong? https://chromeperf.appspot.com/bad_bisect?try_job_id=5023378345295872 | 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 lanwei@chromium.org
, Jun 21 2017