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Issue metadata

Status: Duplicate
Merged: issue 700081
Owner: ----
Closed: Mar 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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32.4% regression in power.android_acceptance at 455240:455437

Project Member Reported by benhenry@google.com, Mar 10 2017

Issue description

See the link to graphs below.
 

Comment 1 by benhenry@google.com, Mar 10 2017

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=700221

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg1KO9rAoM


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

android-nexus6
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Mar 10 2017

Mergedinto: 700081
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : xiaochengh
  Commit : 2483390c3c56d62a8d65bb3bb3672102a4956505
  Date   : Wed Mar 08 02:11:12 2017
  Subject: Implement cold mode invocation for idle time spell checker

Bisect Details
  Configuration: android_nexus6_perf_bisect
  Benchmark    : power.android_acceptance
  Metric       : energy_consumption_mwh/energy_consumption_mwh
  Change       : 37.43% | 14.0764544444 -> 19.3452211111

Revision             Result                   N
chromium@455239      14.0765 +- 0.619103      6      good
chromium@455338      13.499 +- 0.656492       6      good
chromium@455342      13.6769 +- 0.758558      6      good
chromium@455343      13.8258 +- 0.709368      6      good
chromium@455344      18.314 +- 2.37854        6      bad       <--
chromium@455345      18.4852 +- 4.06274       6      bad
chromium@455351      18.2355 +- 4.75093       6      bad
chromium@455363      19.1164 +- 3.75035       6      bad
chromium@455388      17.8447 +- 4.80608       6      bad
chromium@455437      19.3452 +- 4.97292       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 power.android_acceptance

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8985550713648738368

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5636707740811264


| 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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