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Issue 759605 link

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Issue metadata

Status: Duplicate
Merged: issue 757781
Owner: ----
Closed: Aug 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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8.8% regression in system_health.common_mobile at 494758:495119

Project Member Reported by kraynov@chromium.org, Aug 28 2017

Issue description

See the link to graphs below.
 
Project Member

Comment 1 by 42576172...@developer.gserviceaccount.com, Aug 28 2017

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=759605

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=1d795572a4753f05f2f8676eb9c3dbb8cf895ec2d63e4ac0ae59fab86a965ef8


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

android-nexus7v2
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Aug 28 2017

Mergedinto: 757781
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : Kunihiko Sakamoto
  Commit : a604b6e8d467a2c9a9dc134b1ca6f729b410052f
  Date   : Wed Aug 16 16:22:39 2017
  Subject: ResourceLoadScheduler: add the memory stats feature to fieldtrial test config

Bisect Details
  Configuration: android_nexus7_perf_bisect
  Benchmark    : system_health.common_mobile
  Metric       : timeToFirstMeaningfulPaint_avg/browse_social/browse_social_facebook
  Change       : 8.22% | 1481.66125926 -> 1603.38114815

Revision             Result                  N
chromium@494757      1481.66 +- 102.465      6      good
chromium@494803      1504.91 +- 73.287       6      good
chromium@494809      1457.44 +- 184.392      6      good
chromium@494810      1627.99 +- 36.0331      6      bad       <--
chromium@494811      1571.12 +- 90.6458      6      bad
chromium@494812      1598.33 +- 118.668      6      bad
chromium@494815      1615.56 +- 45.022       6      bad
chromium@494826      1618.93 +- 36.2512      6      bad
chromium@494848      1629.36 +- 65.9707      6      bad
chromium@494938      1635.26 +- 76.6576      6      bad
chromium@495119      1603.38 +- 93.4338      6      bad

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=browse.social.facebook system_health.common_mobile

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8970006255016592912


For feedback, file a bug with component Speed>Bisection

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