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Issue 701900 link

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Issue metadata

Status: Duplicate
Merged: issue 701829
Owner: ----
Closed: Mar 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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54.5% regression in page_cycler_v2.typical_25 at 456334:456379

Project Member Reported by nzolghadr@chromium.org, Mar 15 2017

Issue description

See the link to graphs below.
 
All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=701900

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg9NzlvwoM


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

linux-release
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Mar 15 2017

Mergedinto: 701829
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : nednguyen
  Commit : 267012ae7453eddde6de2c604e8aa7efed10d67a
  Date   : Mon Mar 13 12:36:50 2017
  Subject: Roll ts_proxy to the latest commit (a2f578febcd79b751d948f615bbde8f6189fbeed)

Bisect Details
  Configuration: linux_perf_bisect
  Benchmark    : page_cycler_v2.typical_25
  Metric       : timeToFirstContentfulPaint_avg/pcv1-cold/http___www.imdb.com_title_tt0910970_
  Change       : 17.41% | 97.1071111229 -> 114.016875014

Revision                                 Result                  N
chromium@456333                          97.1071 +- 191.252      9      good
chromium@456356                          77.0546 +- 7.69051      5      good
chromium@456362                          76.3347 +- 8.46488      6      good
chromium@456363                          74.0813 +- 1.83568      6      good
chromium@456363,catapult@267012ae74      114.606 +- 6.73911      6      bad       <--
chromium@456364                          117.531 +- 11.6773      6      bad
chromium@456365                          116.465 +- 6.32924      6      bad
chromium@456368                          115.153 +- 11.5727      8      bad
chromium@456379                          114.017 +- 7.33148      8      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=http...www.imdb.com.title.tt0910970. page_cycler_v2.typical_25

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8985031054472153968

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5867051467407360


| 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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