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Issue 722263 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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46.9% improvement in page_cycler_v2.top_10_mobile 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=722263

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgyoPCvgoM


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

android-webview-nexus6
Project Member

Comment 4 by 42576172...@developer.gserviceaccount.com, May 16 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.top_10_mobile
  Metric       : timeToFirstContentfulPaint_avg/pcv1-warm/http___yandex.ru_touchsearch?text_science
  Change       : 45.23% | 250.226333333 -> 137.055

Revision             Result                  N
chromium@470456      250.226 +- 22.1622      6      good
chromium@470477      240.131 +- 8.33285      6      good
chromium@470487      244.755 +- 24.3683      6      good
chromium@470489      241.896 +- 17.3944      6      good
chromium@470490      122.683 +- 47.2604      6      bad       <--
chromium@470492      121.232 +- 48.5126      6      bad
chromium@470497      137.055 +- 55.2556      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...yandex.ru.touchsearch.text.science page_cycler_v2.top_10_mobile

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8979537761080557216

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=6541335407886336


| 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 16 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.top_10_mobile
  Metric       : timeToFirstContentfulPaint_avg/pcv1-warm/http___yandex.ru_touchsearch?text_science
  Change       : 50.45% | 242.903333333 -> 120.358333333

Revision             Result                  N
chromium@470456      242.903 +- 24.8206      6      good
chromium@470477      250.174 +- 19.5548      6      good
chromium@470487      239.458 +- 22.8705      6      good
chromium@470489      246.002 +- 23.2401      6      good
chromium@470490      134.01 +- 48.7354       6      bad       <--
chromium@470492      126.787 +- 57.2243      6      bad
chromium@470497      120.358 +- 56.1678      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...yandex.ru.touchsearch.text.science page_cycler_v2.top_10_mobile

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8979537732554020000

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5885076887306240


| 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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