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Issue metadata

Status: Duplicate
Merged: issue 726031
Owner: ----
Closed: May 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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1.9%-96.2% regression in smoothness.gpu_rasterization.tough_path_rendering_cases at 473911:474163

Project Member Reported by toyoshim@chromium.org, May 30 2017

Issue description

See the link to graphs below.
 
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, May 30 2017


=== BISECT JOB RESULTS ===
NO Perf regression found

Bisect Details
  Configuration: android_nexus6_perf_bisect
  Benchmark    : smoothness.top_25_smooth
  Metric       : mean_input_event_latency/ESPN

Revision             Result                  N
chromium@474103      10.7163 +- 7.86475      21      good
chromium@474163      11.287 +- 10.0527       21      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=ESPN smoothness.top_25_smooth

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8978194927591182848

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5855702859382784


| 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 30 2017


=== BISECT JOB RESULTS ===
NO Perf regression found

Bisect Details
  Configuration: android_nexus6_perf_bisect
  Benchmark    : smoothness.top_25_smooth
  Metric       : mean_input_event_latency/ESPN

Revision             Result                  N
chromium@474103      11.062 +- 6.83631       21      good
chromium@474163      11.7199 +- 7.66475      21      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=ESPN smoothness.top_25_smooth

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8978189652541509056

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5855702859382784


| 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 7 by 42576172...@developer.gserviceaccount.com, May 30 2017

Mergedinto: 726031
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : danakj
  Commit : cfc477b43f1c91e84e17180ee937728d6f496aa6
  Date   : Wed May 24 00:53:52 2017
  Subject: Add PaintOpBuffer::PlaybackRanges() to play a set of ranges of ops.

Bisect Details
  Configuration: android_nexus5_perf_bisect
  Benchmark    : smoothness.gpu_rasterization.tough_path_rendering_cases
  Metric       : frame_times/https___testdrive-archive.azurewebsites.net_performance_chalkboard_
  Change       : 24.24% | 149.58729211 -> 185.848846304

Revision             Result                  N
chromium@474004      149.587 +- 2.83976      6      good
chromium@474073      148.693 +- 2.83495      6      good
chromium@474108      149.254 +- 3.39243      6      good
chromium@474117      148.709 +- 3.42366      6      good
chromium@474121      147.105 +- 3.40521      6      good
chromium@474123      148.059 +- 1.87693      6      good
chromium@474124      187.99 +- 9.48222       6      bad       <--
chromium@474125      185.526 +- 5.82337      6      bad
chromium@474142      185.849 +- 7.89253      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...testdrive.archive.azurewebsites.net.performance.chalkboard. smoothness.gpu_rasterization.tough_path_rendering_cases

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8978173113246575488

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=6383753250734080


| 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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