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Issue 701897 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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47.2% regression in page_cycler_v2.intl_ja_zh 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=701897

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg9OjlsgoM


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.intl_ja_zh
  Metric       : timeToFirstContentfulPaint_avg/pcv1-warm/http___www.google.com.hk__q_%E9%82%84%E6%8F%90%E4%BE%9B_fp_c44d333e710cb480
  Change       : 36.95% | 157.076333333 -> 215.118666667

Revision                                 Result                  N
chromium@456333                          157.076 +- 48.0905      6      good
chromium@456356                          152.756 +- 32.2534      6      good
chromium@456362                          147.341 +- 33.2307      6      good
chromium@456363                          160.156 +- 40.4312      6      good
chromium@456363,catapult@267012ae74      212.103 +- 46.482       9      bad       <--
chromium@456364                          212.644 +- 31.617       6      bad
chromium@456365                          218.19 +- 16.7737       6      bad
chromium@456368                          212.452 +- 21.8368      6      bad
chromium@456379                          215.119 +- 17.2012      6      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.google.com.hk..q..E9.82.84.E6.8F.90.E4.BE.9B.fp.c44d333e710cb480 page_cycler_v2.intl_ja_zh

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8985031075810760848

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=6444948712325120


| 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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