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Issue 712620 link

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Issue metadata

Status: Duplicate
Merged: issue 711864
Owner: ----
Closed: Apr 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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14861.1% regression in webrtc.stress at 464550:464658

Project Member Reported by guidou@chromium.org, Apr 18 2017

Issue description

See the link to graphs below.
 

Comment 1 by guidou@chromium.org, Apr 18 2017

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=712620

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDggvnEqAkM


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

android-nexus5X
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Apr 18 2017

Mergedinto: 711864
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : dfalcantara
  Commit : 8ef9faffba78738c37df77a160fea80ee5f604af
  Date   : Thu Apr 13 23:30:05 2017
  Subject: 🔍 Update how shared preferences are handled by the widget

Bisect Details
  Configuration: android_nexus5X_perf_bisect
  Benchmark    : webrtc.stress
  Metric       : cpu_utilization/multiple_peerconnections

Revision             Result                      N
chromium@464549      0.0550867 +- 0.0177616      6      good
chromium@464604      0.0582294 +- 0.0275252      6      good
chromium@464605      9.6236 +- 0.640214          6      bad       <--
chromium@464606      9.53129 +- 0.385894         6      bad
chromium@464608      9.78599 +- 1.0174           6      bad
chromium@464611      9.73186 +- 1.08623          6      bad
chromium@464618      9.70479 +- 1.06003          6      bad
chromium@464631      9.28339 +- 0.90596          6      bad
chromium@464658      9.04859 +- 0.844202         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.stress

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8981977264399366624

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5885383893581824


| 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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