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79.2% regression in media.tough_video_cases at 475126:475226 |
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Issue descriptionThis is actually a return to previous values from ~1k revisions back. Likely noise or some improvement was reverted.
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Jun 6 2017
Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8977499200078281280
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Jun 7 2017
=== BISECT JOB RESULTS === Perf regression found with culprit Suspected Commit Author : Brian Salomon Commit : 1c214313248a4b5a69af14539608c54fb67c2bf8 Date : Thu May 25 20:03:07 2017 Subject: Revert "Clear atlas textures at creation in Chrome" Bisect Details Configuration: mac_10_12_perf_bisect Benchmark : media.tough_video_cases Metric : vm_resident_set_size_delta_size/tulip2.mp4_gpu Change : 58.60% | 6047.33333333 -> 9591.33333333 Revision Result N chromium@475125 6047.33 +- 2469.03 6 good chromium@475176 5544.0 +- 2882.14 6 good chromium@475201 5908.0 +- 2202.78 6 good chromium@475214 5875.33 +- 2138.86 6 good chromium@475217 5638.0 +- 1881.2 6 good chromium@475218 6773.33 +- 1302.29 6 good chromium@475218,skia@9b51d1484a 5244.67 +- 1737.72 6 good chromium@475218,skia@33fa454b16 6030.0 +- 1582.19 6 good chromium@475218,skia@1c21431324 9491.33 +- 2334.78 6 bad <-- chromium@475218,skia@fabe0b26d0 10237.3 +- 2476.54 6 bad chromium@475218,skia@e7ba8b05d2 9974.67 +- 2814.37 6 bad chromium@475218,skia@c020f17127 10516.0 +- 2773.2 6 bad chromium@475219 10405.3 +- 2245.81 6 bad chromium@475220 9858.0 +- 2677.53 6 bad chromium@475226 9591.33 +- 1254.51 6 bad To Run This Test src/tools/perf/run_benchmark -v --browser=release --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests media.tough_video_cases Debug Info https://chromeperf.appspot.com/buildbucket_job_status/8977499200078281280 Is this bisect wrong? https://chromeperf.appspot.com/bad_bisect?try_job_id=5573069919223808 | 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 chcunningham@chromium.org
, Jun 6 2017