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Issue 722255 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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76.8% improvement in system_health.common_mobile at 470445:470492

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=722255

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgqsKJ-wgM


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

android-one
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_one_perf_bisect
  Benchmark    : system_health.common_mobile
  Metric       : timeToFirstContentfulPaint_avg/load_media/load_media_soundcloud
  Change       : 78.91% | 1700.14783333 -> 358.497666667

Revision             Result                  N
chromium@470444      1700.15 +- 372.25       6      good
chromium@470468      1685.23 +- 304.025      6      good
chromium@470480      1730.86 +- 415.223      6      good
chromium@470486      1671.68 +- 306.27       6      good
chromium@470489      1718.03 +- 387.13       9      good
chromium@470490      368.356 +- 42.527       6      bad       <--
chromium@470491      536.063 +- 1525.93      9      bad
chromium@470492      358.498 +- 29.1463      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=load.media.soundcloud system_health.common_mobile

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8979537939510315568

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5894724558258176


| 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_one_perf_bisect
  Benchmark    : system_health.common_mobile
  Metric       : timeToFirstContentfulPaint_avg/load_media/load_media_soundcloud
  Change       : 73.82% | 3095.56016667 -> 810.333

Revision             Result                  N
chromium@470444      3095.56 +- 1076.2       6      good
chromium@470468      2601.34 +- 331.564      6      good
chromium@470480      2766.98 +- 645.348      6      good
chromium@470486      2638.46 +- 491.998      6      good
chromium@470489      2728.99 +- 792.167      9      good
chromium@470490      1051.37 +- 2209.18      9      bad       <--
chromium@470491      986.989 +- 2046.81      9      bad
chromium@470492      810.333 +- 130.684      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=load.media.soundcloud system_health.common_mobile

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8979537946747761856

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=6057918182457344


| 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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