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Issue metadata

Status: Duplicate
Merged: issue 706108
Owner: ----
Closed: Mar 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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1.9%-7.4% regression in system_health.memory_mobile at 459785:459853

Project Member Reported by lanwei@chromium.org, Mar 30 2017

Issue description

See the link to graphs below.
 
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Mar 30 2017

Mergedinto: 706108
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : altimin
  Commit : 12e16766adec5bb1e5cdd73d3cd8f5016b59ce18
  Date   : Mon Mar 27 15:45:38 2017
  Subject: [scheduler] Add suspendable task queue.

Bisect Details
  Configuration: android_nexus6_perf_bisect
  Benchmark    : system_health.memory_mobile
  Metric       : memory:chrome:all_processes:reported_by_chrome:v8:effective_size_avg/background_search/background_search_google
  Change       : 7.27% | 9580224.0 -> 10277135.3333

Revision             Result                   N
chromium@459784      9580224 +- 134629        6      good
chromium@459786      9598047 +- 67777.2       6      good
chromium@459787      10242053 +- 38800.5      6      bad       <--
chromium@459789      10228011 +- 66588.8      6      bad
chromium@459793      10252440 +- 95617.3      6      bad
chromium@459802      10288696 +- 150076       6      bad
chromium@459819      10268187 +- 151516       6      bad
chromium@459853      10277135 +- 149882       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 --story-filter=background.search.google system_health.memory_mobile

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8983671412892601952

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5879231541673984


| 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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