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Issue metadata

Status: Duplicate
Merged: issue 740885
Owner: ----
Closed: Jul 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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3.7%-22.8% regression in system_health.memory_mobile at 485140:485148

Project Member Reported by petermarshall@chromium.org, Jul 11 2017

Issue description

See the link to graphs below.
 
Project Member

Comment 1 by 42576172...@developer.gserviceaccount.com, Jul 11 2017

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=740914

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=9cd545fe820ffe3501dde7195d8d7a84cbfccf16e176f991fe9fe21947191890


Bot(s) for this bug's original alert(s):

android-nexus5
android-nexus5X
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Jul 12 2017

Mergedinto: 740885
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : perezju
  Commit : 00b0c16c97088f5c06df9d3b27eaeb41f06173e5
  Date   : Sat Jul 08 09:18:52 2017
  Subject: Revert of [System Health] Extend dump time to 5 seconds (patchset #2 id:20001 of https://codereview.chromium.org/2946013004/ )

Bisect Details
  Configuration: android_nexus5X_perf_bisect
  Benchmark    : system_health.memory_mobile
  Metric       : memory:chrome:renderer_processes:reported_by_chrome:v8:heap:effective_size_avg/load_games/load_games_bubbles
  Change       : 23.42% | 6219214.66667 -> 7675616.66667

Revision                                 Result                  N
chromium@485145                          6219215 +- 45642.2      6      good
chromium@485146                          6356299 +- 698805       6      good
chromium@485146,catapult@00b0c16c97      7574551 +- 366145       6      bad       <--
chromium@485147                          7632959 +- 351949       6      bad
chromium@485148                          7675617 +- 102325       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=load.games.bubbles system_health.memory_mobile

More information on addressing performance regressions:
  http://g.co/ChromePerformanceRegressions

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8974364454969081472


For feedback, file a bug with component Speed>Bisection

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