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Issue 701338 link

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Issue metadata

Status: Duplicate
Merged: issue 699705
Owner: ----
Closed: Mar 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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41.3% improvement in webrtc.peerconnection at 455069:455162

Project Member Reported by ehmaldonado@chromium.org, Mar 14 2017

Issue description

See the link to graphs below.
 
All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=701338

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg1PC-0QoM


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

android-nexus5X
It looks like it returned to what it was before.
Project Member

Comment 4 by 42576172...@developer.gserviceaccount.com, Mar 14 2017

Mergedinto: 699705
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : pdr
  Commit : a20ad732333dc9db2b545886acd16a11abdc5842
  Date   : Tue Mar 07 17:11:15 2017
  Subject: Remove indirection: setup scrollbar scroll layers in the scrollbar constructor

Bisect Details
  Configuration: android_nexus5X_perf_bisect
  Benchmark    : webrtc.peerconnection
  Metric       : cpu_utilization/cpu_utilization_gpu
  Change       : 39.77% | 0.584411476518 -> 0.351971631306

Revision             Result                     N
chromium@455068      0.584411 +- 0.0378405      6      good
chromium@455092      0.60979 +- 0.0432113       6      good
chromium@455104      0.612712 +- 0.0446593      6      good
chromium@455105      0.361344 +- 0.0562358      6      bad       <--
chromium@455106      0.348955 +- 0.0227765      6      bad
chromium@455107      0.352087 +- 0.0342126      6      bad
chromium@455110      0.355261 +- 0.0320203      6      bad
chromium@455115      0.358316 +- 0.0270888      6      bad
chromium@455162      0.351972 +- 0.0573132      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 webrtc.peerconnection

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8985141444600050624

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5491169418543104


| 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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