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Issue 722241 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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48.9% improvement in smoothness.top_25_smooth at 470445:470501

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=722241

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg6p3PvAoM


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

android-nexus5
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_nexus5_perf_bisect
  Benchmark    : smoothness.top_25_smooth
  Metric       : mean_input_event_latency/https___www.google.com_calendar_
  Change       : 50.15% | 20.6451666667 -> 10.292

Revision             Result                  N
chromium@470444      20.6452 +- 1.90643      6      good
chromium@470473      19.0707 +- 3.017        6      good
chromium@470487      19.9142 +- 6.47633      6      good
chromium@470489      19.6775 +- 2.0655       6      good
chromium@470490      10.137 +- 1.41976       6      bad       <--
chromium@470491      10.9822 +- 1.98087      6      bad
chromium@470494      10.3517 +- 1.1909       6      bad
chromium@470501      10.292 +- 1.56673       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=https...www.google.com.calendar. smoothness.top_25_smooth

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8979543133348656000

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=4883653454200832


| 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_nexus5_perf_bisect
  Benchmark    : smoothness.top_25_smooth
  Metric       : mean_input_event_latency/https___www.google.com_calendar_
  Change       : 50.36% | 20.8948888889 -> 10.3728333333

Revision             Result                  N
chromium@470444      20.8949 +- 16.5085      9      good
chromium@470473      20.9223 +- 3.01923      6      good
chromium@470487      21.1282 +- 3.73221      6      good
chromium@470489      20.3252 +- 4.0142       6      good
chromium@470490      10.623 +- 1.40928       6      bad       <--
chromium@470491      10.0008 +- 1.75079      6      bad
chromium@470494      10.191 +- 1.78556       6      bad
chromium@470501      10.3728 +- 1.45759      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=https...www.google.com.calendar. smoothness.top_25_smooth

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8979543123811249184

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5905233974132736


| 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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