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Issue 740929 link

Starred by 1 user
Status: Duplicate
Merged: issue 738718
Owner: ----
Closed: Jul 2017
Cc:
█ petermarshall@chromium.org
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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4.8% regression in media.tough_video_cases_tbmv2 at 483364:483524

Project Member Reported by petermarshall@chromium.org, Jul 11 2017 
See the link to graphs below.
Project Member

Comment 1 by 42576172...@developer.gserviceaccount.com, Jul 11 2017 

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=740929

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=fee46195884ce6a7c6c76a2f65430a03eab2009f4bd352df88a3db49390b1cae


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

chromium-rel-mac12-mini-8gb
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Jul 11 2017 


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

Bisect Details
  Configuration: mac_10_12_mini_8gb_perf_bisect
  Benchmark    : media.tough_video_cases_tbmv2
  Metric       : memory:chrome:renderer_processes:reported_by_chrome:v8:heap:effective_size_avg/video.html?src_garden2_10s.webm_seek

Revision             Result                  N
chromium@483363      4008191 +- 313107       21      good
chromium@483524      4020887 +- 40795.2      21      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=video.html.src.garden2.10s.webm.seek media.tough_video_cases_tbmv2

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8974362801996729792


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

Comment 5 by 42576172...@developer.gserviceaccount.com, Jul 12 2017 


=== BISECT JOB RESULTS ===
Bisect failed for unknown reasons

Please contact the team (see below) and report the error.


Bisect Details
  Configuration: mac_10_12_mini_8gb_perf_bisect
  Benchmark    : media.tough_video_cases_tbmv2
  Metric       : memory:chrome:renderer_processes:reported_by_chrome:v8:heap:effective_size_avg/video.html?src_garden2_10s.webm_seek


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=video.html.src.garden2.10s.webm.seek media.tough_video_cases_tbmv2

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8974288610612517568


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

Comment 7 by 42576172...@developer.gserviceaccount.com, Jul 12 2017

Mergedinto: 738718
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : Ulan Degenbaev
  Commit : f341bb0f623821e56349735e47e1a9094f65d9a3
  Date   : Fri Jun 30 12:03:04 2017
  Subject: Revert "[heap] Allow a minimum semi-space size of 512K."

Bisect Details
  Configuration: mac_10_12_mini_8gb_perf_bisect
  Benchmark    : media.tough_video_cases_tbmv2
  Metric       : memory:chrome:renderer_processes:reported_by_chrome:v8:heap:effective_size_avg/video.html?src_garden2_10s.webm_seek
  Change       : 8.06% | 3976498.66667 -> 4297202.66667

Revision                           Result                  N
chromium@483184                    3976499 +- 290211       6      good
chromium@483552                    3966640 +- 285962       6      good
chromium@483644                    4021931 +- 22251.6      6      good
chromium@483690                    4021057 +- 22649.7      6      good
chromium@483713                    4014701 +- 18378.4      6      good
chromium@483725                    4014216 +- 15746.5      6      good
chromium@483728                    4017465 +- 24048.7      6      good
chromium@483729                    4021649 +- 23767.2      6      good
chromium@483729,v8@ca93156294      3966816 +- 289000       6      good
chromium@483729,v8@f341bb0f62      4299297 +- 3194.3       6      bad       <--
chromium@483729,v8@fa4314da8b      4298757 +- 1173.18      6      bad
chromium@483729,v8@bfbabce113      4299604 +- 2789.53      6      bad
chromium@483730                    4298835 +- 1402.98      6      bad
chromium@483731                    4298176 +- 4207.53      6      bad
chromium@483736                    4298661 +- 1524.78      6      bad
chromium@483920                    4297203 +- 3853.7       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=video.html.src.garden2.10s.webm.seek media.tough_video_cases_tbmv2

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8974269936188492096


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

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