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Issue 755292 link

Starred by 1 user
Status: Duplicate
Merged: issue 755229
Owner: ----
Closed: Aug 2017
Cc:
fmea...@chromium.org
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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27%-206.7% regression in system_health.common_desktop at 492969:493979

Project Member Reported by fmea...@chromium.org, Aug 14 2017 
See the link to graphs below.
Project Member

Comment 1 by 42576172...@developer.gserviceaccount.com, Aug 14 2017 

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=755292

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=9612e56e67d15448e8980046d6d2f5d0a2e41484f3bcca897ca73bc8d37f6ffe


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

chromium-rel-mac11-pro
chromium-rel-mac12
chromium-rel-mac12-mini-8gb
chromium-rel-win7-dual
chromium-rel-win7-gpu-ati
chromium-rel-win7-gpu-intel
chromium-rel-win7-gpu-nvidia
chromium-rel-win7-x64-dual
chromium-rel-win8-dual
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Aug 15 2017 


=== BISECT JOB RESULTS ===
Perf regression found but unable to narrow commit range

Build failures prevented the bisect from narrowing the range further.


Bisect Details
  Configuration: win_perf_bisect
  Benchmark    : system_health.common_desktop
  Metric       : cpu_time_percentage_avg/load_games/load_games_bubbles
  Change       : 34.33% | 1.11228200749 -> 0.793587387452

Suspected Commit Range
  3 commits in range
  https://chromium.googlesource.com/chromium/src/+log/b362bd6056e7f3f21bb60b155311ef863238d2f8..4fd737943580f5202315f6d116ab5e5c5275e58c


Revision             Result                    N
chromium@492968      1.11228 +- 1.00775        14       good
chromium@493204      0.902639 +- 1.16952       14       good
chromium@493234      0.959495 +- 0.937234      9        good
chromium@493249      0.937416 +- 1.20697       14       good
chromium@493250      1.08195 +- 1.07076        9        good
chromium@493251      ---                       ---      build failure
chromium@493252      ---                       ---      build failure
chromium@493253      0.527546 +- 0.598322      14       bad
chromium@493256      0.563649 +- 0.779758      21       bad
chromium@493263      0.53717 +- 0.563721       14       bad
chromium@493322      0.502159 +- 0.509318      14       bad
chromium@493439      0.543036 +- 0.613743      14       bad
chromium@493910      0.793587 +- 0.551457      6        bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=release --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=load.games.bubbles system_health.common_desktop

More information on addressing performance regressions:
  http://g.co/ChromePerformanceRegressions

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8971252939230446976


For feedback, file a bug with component Speed>Bisection
Project Member

Comment 6 by 42576172...@developer.gserviceaccount.com, Aug 15 2017

Mergedinto: 755229
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : Khushal
  Commit : 1b8abc019a5b476d503bff7405120c44036799eb
  Date   : Thu Aug 10 05:16:17 2017
  Subject: cc/blink: Replace SkImageGenerator with PaintImageGenerator.

Bisect Details
  Configuration: winx64intel_perf_bisect
  Benchmark    : system_health.common_desktop
  Metric       : cpu_time_percentage_avg/load_games/load_games_bubbles
  Change       : 165.51% | 0.252514948586 -> 0.6704571567

Revision             Result                     N
chromium@493069      0.252515 +- 0.0548345      6      good
chromium@493182      0.226825 +- 0.0916886      6      good
chromium@493238      0.226294 +- 0.146755       6      good
chromium@493245      0.261095 +- 0.0270167      6      good
chromium@493249      0.259884 +- 0.0299294      6      good
chromium@493250      0.259884 +- 0.0258202      6      good
chromium@493251      0.655176 +- 0.0930371      6      bad       <--
chromium@493252      0.656612 +- 0.0866421      6      bad
chromium@493266      0.652175 +- 0.0758656      6      bad
chromium@493294      0.465812 +- 0.273687       6      bad
chromium@493518      0.561911 +- 0.289186       6      bad
chromium@493966      0.670457 +- 0.146968       6      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=release_x64 --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=load.games.bubbles system_health.common_desktop

More information on addressing performance regressions:
  http://g.co/ChromePerformanceRegressions

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8971184012662689568


For feedback, file a bug with component Speed>Bisection
Project Member

Comment 7 by 42576172...@developer.gserviceaccount.com, Aug 15 2017 


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

Suspected Commit
  Author : Khushal
  Commit : 1b8abc019a5b476d503bff7405120c44036799eb
  Date   : Thu Aug 10 05:16:17 2017
  Subject: cc/blink: Replace SkImageGenerator with PaintImageGenerator.

Bisect Details
  Configuration: win_perf_bisect
  Benchmark    : system_health.common_desktop
  Metric       : cpu_time_percentage_avg/load_games/load_games_bubbles
  Change       : 26.47% | 1.18242311681 -> 0.869430110923

Revision             Result                     N
chromium@492968      1.18242 +- 1.20988         21      good
chromium@493204      1.29646 +- 0.639388        9       good
chromium@493234      1.25491 +- 0.727358        9       good
chromium@493249      1.37575 +- 0.171175        6       good
chromium@493250      1.28639 +- 0.467205        6       good
chromium@493251      0.75563 +- 0.085917        6       bad       <--
chromium@493253      0.760717 +- 0.0997102      6       bad
chromium@493256      0.762348 +- 0.0516402      6       bad
chromium@493263      0.774276 +- 0.0466922      9       bad
chromium@493322      0.772093 +- 0.0712157      9       bad
chromium@493439      0.748423 +- 0.0898471      9       bad
chromium@493910      0.86943 +- 0.748746        14      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=release --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=load.games.bubbles system_health.common_desktop

More information on addressing performance regressions:
  http://g.co/ChromePerformanceRegressions

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8971184051033709904


For feedback, file a bug with component Speed>Bisection
►

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