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Issue 722193 link

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Issue metadata

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



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68.5% improvement in page_cycler_v2.intl_ko_th_vi at 470457:470497

Project Member Reported by yhirano@chromium.org, May 15 2017

Issue description

See the link to graphs below.
 
All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=722193

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgqsSx6AoM


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

android-webview-nexus6
Project Member

Comment 4 by 42576172...@developer.gserviceaccount.com, May 15 2017

Mergedinto: 721238
Status: Duplicate (was: Assigned)

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

Suspected Commit
  Author : yhirano
  Commit : 91088a195969f5af61f404c9f02edc622cbe373a
  Date   : Wed May 10 05:49:31 2017
  Subject: Add Field Trial Testing Configuration for MojoLoading

Bisect Details
  Configuration: android_webview_nexus6_aosp_perf_bisect
  Benchmark    : page_cycler_v2.intl_ko_th_vi
  Metric       : timeToFirstContentfulPaint_avg/pcv1-cold/http___www.daum.net_
  Change       : 69.73% | 571.808666667 -> 173.0635

Revision             Result                  N
chromium@470456      571.809 +- 373.943      6      good
chromium@470477      500.952 +- 432.388      6      good
chromium@470487      569.896 +- 341.016      6      good
chromium@470489      641.786 +- 53.4197      6      good
chromium@470490      178.819 +- 100.941      6      bad       <--
chromium@470492      217.099 +- 139.938      6      bad
chromium@470497      173.064 +- 70.2632      6      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=android-webview --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=http...www.daum.net. page_cycler_v2.intl_ko_th_vi

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8979553923238305424

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5897655772774400


| 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!
Project Member

Comment 5 by 42576172...@developer.gserviceaccount.com, May 15 2017


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

Suspected Commit
  Author : yhirano
  Commit : 91088a195969f5af61f404c9f02edc622cbe373a
  Date   : Wed May 10 05:49:31 2017
  Subject: Add Field Trial Testing Configuration for MojoLoading

Bisect Details
  Configuration: android_webview_nexus6_aosp_perf_bisect
  Benchmark    : page_cycler_v2.intl_ko_th_vi
  Metric       : timeToFirstContentfulPaint_avg/pcv1-cold/http___www.daum.net_
  Change       : 61.10% | 428.521 -> 166.676333333

Revision             Result                  N
chromium@470456      428.521 +- 492.918      6      good
chromium@470477      622.437 +- 38.1645      6      good
chromium@470487      644.958 +- 43.6753      6      good
chromium@470489      648.054 +- 35.4198      6      good
chromium@470490      199.721 +- 72.7669      6      bad       <--
chromium@470492      157.898 +- 40.524       6      bad
chromium@470497      166.676 +- 64.2967      6      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=android-webview --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=http...www.daum.net. page_cycler_v2.intl_ko_th_vi

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8979553914748243312

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=6419444101808128


| 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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