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Issue 715835 link

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Issue metadata

Status: Duplicate
Merged: issue 711044
Owner: ----
Closed: Apr 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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5% improvement in system_health.common_desktop at 463520:463909

Project Member Reported by samans@chromium.org, Apr 26 2017

Issue description

See the link to graphs below.
 

Comment 1 by samans@chromium.org, Apr 26 2017

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=715835

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgwuiY6woM


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

chromium-rel-mac-retina
Project Member

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

Mergedinto: 711044
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : delphick
  Commit : d8ade60fbe0ea954ecd5f186c36e6d0ac045c28c
  Date   : Tue Apr 11 09:56:28 2017
  Subject: No longer clamp setTimeout(..., 0) to 1ms.

Bisect Details
  Configuration: mac_retina_perf_bisect
  Benchmark    : system_health.common_desktop
  Metric       : load:energy_sum/load_media/load_media_soundcloud
  Change       : 5.79% | 39.8180810261 -> 37.511343348

Revision             Result                   N
chromium@463519      39.8181 +- 2.28712       9       good
chromium@463568      39.7103 +- 1.81357       9       good
chromium@463581      39.7434 +- 0.537731      6       good
chromium@463587      39.9517 +- 1.0726        6       good
chromium@463590      39.6779 +- 2.62351       14      good
chromium@463591      38.3631 +- 1.56247       6       bad       <--
chromium@463592      38.635 +- 5.93113        14      bad
chromium@463593      37.8453 +- 2.48852       9       bad
chromium@463617      37.8652 +- 2.37158       9       bad
chromium@463714      37.7707 +- 2.2377        6       bad
chromium@463909      37.5113 +- 4.34257       9       bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=release --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=load.media.soundcloud system_health.common_desktop

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8981207653485682928

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5840072022163456


| 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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