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38.6% improvement in system_health.common_mobile at 473208:475195 |
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Issue descriptionSee the link to graphs below.
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May 29 2017
Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8978240528401749744
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May 30 2017
=== BISECT JOB RESULTS === Perf regression found with culprit Suspected Commit Author : drott Commit : ba0e6cd12bf6f5e864e1f60993ceafef3f4a7cae Date : Wed May 24 09:08:34 2017 Subject: Do not build FreeType with HarfBuzz support on Android Bisect Details Configuration: android_webview_nexus6_aosp_perf_bisect Benchmark : system_health.common_mobile Metric : timeToFirstContentfulPaint_avg/load_search/load_search_baidu Change : 39.06% | 571.643666667 -> 348.3875 Revision Result N chromium@473207 571.644 +- 111.149 6 good chromium@474201 542.435 +- 46.4254 6 good chromium@474217 545.077 +- 41.9221 6 good chromium@474219 552.608 +- 35.0432 6 good chromium@474220 540.969 +- 43.3858 6 good chromium@474221 358.391 +- 175.207 6 bad <-- chromium@474225 329.553 +- 31.2972 6 bad chromium@474233 325.76 +- 21.129 6 bad chromium@474264 326.861 +- 19.4108 6 bad chromium@474326 345.429 +- 48.3611 6 bad chromium@474450 330.691 +- 27.3428 6 bad chromium@474698 335.801 +- 42.0073 6 bad chromium@475195 348.387 +- 50.8263 6 bad To Run This Test src/tools/perf/run_benchmark -v --browser=android-webview --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=load.search.baidu system_health.common_mobile Debug Info https://chromeperf.appspot.com/buildbucket_job_status/8978240528401749744 Is this bisect wrong? https://chromeperf.appspot.com/bad_bisect?try_job_id=5790652224241664 | 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 samans@chromium.org
, May 29 2017