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Issue 763859 link

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Issue metadata

Status: Duplicate
Merged: issue 763407
Owner: ----
Closed: Sep 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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8.4%-32.4% regression in loading.mobile at 500324:500451

Project Member Reported by rmcilroy@chromium.org, Sep 11 2017

Issue description

See the link to graphs below.
 
Project Member

Comment 1 by 42576172...@developer.gserviceaccount.com, Sep 11 2017

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=763859

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=4c75b1aba88686b2aafdb08589ac0d1294942356f665153292d1349a4c30b992


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

android-one
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Sep 11 2017

Mergedinto: 763407
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : xunjieli
  Commit : 724bb776bcdea642a5bc9cc20fe14bb0282b4900
  Date   : Wed Sep 06 14:29:20 2017
  Subject: [Telemetry] Use --ignore-certificate-errors-spki-list to bypass cert errors

Bisect Details
  Configuration: android_one_perf_bisect
  Benchmark    : loading.mobile
  Metric       : timeToFirstMeaningfulPaint_avg/Regular-3G/OLX
  Change       : 30.76% | 4095.74421429 -> 5389.54933333

Revision                                 Result                  N
chromium@500323                          4095.74 +- 1130.45      14      good
chromium@500339                          4196.29 +- 3064.95      21      good
chromium@500343                          4727.8 +- 7899.95       14      good
chromium@500344                          4035.69 +- 456.748      6       good
chromium@500344,catapult@c5a474f50f      4016.17 +- 605.348      6       good
chromium@500344,catapult@724bb776bc      6153.27 +- 736.977      6       bad       <--
chromium@500344,catapult@80c47581b1      5876.99 +- 507.871      6       bad
chromium@500344,catapult@4f611510b9      5236.49 +- 2877.83      9       bad
chromium@500344,catapult@442f46edf7      5467.21 +- 1770.81      6       bad
chromium@500345                          5482.45 +- 3277.7       14      bad
chromium@500347                          5347.48 +- 2065.99      9       bad
chromium@500355                          5160.75 +- 4602.24      21      bad
chromium@500387                          5825.41 +- 4849.56      14      bad
chromium@500451                          5389.55 +- 1514.88      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 --story-filter=OLX loading.mobile

More information on addressing performance regressions:
  http://g.co/ChromePerformanceRegressions

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8968752742180224720


For feedback, file a bug with component Speed>Bisection

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