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51% regression in v8.browsing_desktop at 468947:469011 |
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Issue descriptionSee the link to graphs below.
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May 8 2017
Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8980177365780048768
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May 8 2017
=== Auto-CCing suspected CL author ulan@chromium.org === Hi ulan@chromium.org, the bisect results pointed to your CL, please take a look at the results. === BISECT JOB RESULTS === Perf regression found with culprit Suspected Commit Author : ulan Commit : c6816cd87d1d31dd78218a5f004d6db6202fb1fc Date : Tue May 02 17:03:31 2017 Subject: [heap] Implement simple concurrent marking deque. Bisect Details Configuration: winx64_10_perf_bisect Benchmark : v8.browsing_desktop Metric : v8-gc-incremental-step_sum/browse_search/browse_search_google_india Change : 77.09% | 22.6325 -> 40.0803333333 Revision Result N chromium@468946 22.6325 +- 10.4262 6 good chromium@468963 20.4718 +- 2.18655 6 good chromium@468971 20.8407 +- 1.03305 6 good chromium@468973 20.2317 +- 1.65494 6 good chromium@468973,v8@63a40cae7c 20.8325 +- 1.76438 6 good chromium@468973,v8@66f6954064 20.239 +- 2.24304 6 good chromium@468973,v8@c6816cd87d 40.3792 +- 1.72622 6 bad <-- chromium@468973,v8@e393093a74 40.9935 +- 1.73723 6 bad chromium@468973,v8@94ca3b6809 40.2068 +- 1.91343 6 bad chromium@468974 40.7923 +- 3.45632 6 bad chromium@468975 40.0013 +- 1.25467 6 bad chromium@468979 40.9877 +- 3.23786 6 bad chromium@469011 40.0803 +- 1.47279 6 bad To Run This Test src/tools/perf/run_benchmark -v --browser=release_x64 --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=browse.search.google.india v8.browsing_desktop Debug Info https://chromeperf.appspot.com/buildbucket_job_status/8980177365780048768 Is this bisect wrong? https://chromeperf.appspot.com/bad_bisect?try_job_id=6301410280341504 | 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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May 12 2017
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Jul 17 2017
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Jul 24 2017
The bug in CL #3 (accidentally enabling concurrent marking queue) was fixed. |
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Comment 1 by ulan@google.com
, May 8 2017