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Issue 717653 link

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Issue metadata

Status: Duplicate
Merged: issue 717400
Owner: ----
Closed: May 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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41.9% regression in page_cycler_v2.top_10_mobile at 467938:467965

Project Member Reported by nzolghadr@chromium.org, May 2 2017

Issue description

See the link to graphs below.
 
All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=717653

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgsrW9lggM


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

android-nexus6
Mergedinto: 717400
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : nednguyen
  Commit : e80a730b1b1b43ec5fa205dd99e5f00693173f4c
  Date   : Fri Apr 28 09:26:12 2017
  Subject: [Telemetry] Switch Android platform to no longer uses test ca

Bisect Details
  Configuration: android_nexus6_perf_bisect
  Benchmark    : page_cycler_v2.top_10_mobile
  Metric       : timeToFirstContentfulPaint_avg/pcv1-warm/https___mobile.twitter.com_justinbieber?skip_interstitial_true
  Change       : 35.73% | 457.573555556 -> 614.012888889

Revision                                 Result                  N
chromium@467937                          457.574 +- 177.775      9       good
chromium@467951                          480.854 +- 316.568      14      good
chromium@467953                          471.179 +- 262.654      9       good
chromium@467953,catapult@e80a730b1b      662.137 +- 72.4398      6       bad       <--
chromium@467954                          627.116 +- 212.628      6       bad
chromium@467955                          621.357 +- 222.919      6       bad
chromium@467958                          626.055 +- 89.3356      6       bad
chromium@467965                          614.013 +- 159.023      9       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=https...mobile.twitter.com.justinbieber.skip.interstitial.true page_cycler_v2.top_10_mobile

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8980682091700289504

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5055776567066624


| 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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