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Issue metadata

Status: Duplicate
Merged: issue 725945
Owner: ----
Closed: May 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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2.9%-5.5% regression in memory.top_10_mobile at 473894:474103

Project Member Reported by briander...@chromium.org, May 26 2017

Issue description

See the link to graphs below.
 
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, May 27 2017

Mergedinto: 725945
Status: Duplicate (was: Untriaged)

=== BISECT JOB RESULTS ===
Perf regression found with culprit

Suspected Commit
  Author : danakj
  Commit : 4188df86ebb468a6723b1c5855c75be8e4ae91a3
  Date   : Tue May 23 20:05:29 2017
  Subject: Avoid quickReject() when rastering a cc::DrawingDisplayItem.

Bisect Details
  Configuration: android_one_perf_bisect
  Benchmark    : memory.top_10_mobile
  Metric       : memory:chrome:all_processes:reported_by_chrome:skia:effective_size_avg/foreground/http_search_yahoo_com_search__ylt_p_google
  Change       : 5.47% | 28812.0 -> 30388.0

Revision             Result              N
chromium@473893      28812.0 +- 0.0      6      good
chromium@473961      28812.0 +- 0.0      6      good
chromium@473995      28812.0 +- 0.0      6      good
chromium@474012      28812.0 +- 0.0      6      good
chromium@474013      28812.0 +- 0.0      6      good
chromium@474014      30388.0 +- 0.0      6      bad       <--
chromium@474015      30388.0 +- 0.0      6      bad
chromium@474017      30388.0 +- 0.0      6      bad
chromium@474021      30388.0 +- 0.0      6      bad
chromium@474029      30388.0 +- 0.0      6      bad

Please refer to the following doc on diagnosing memory regressions:
  https://chromium.googlesource.com/chromium/src/+/master/docs/memory-infra/memory_benchmarks.md

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 memory.top_10_mobile

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8978488810630429584

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5249710597603328


| 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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