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Issue metadata

Status: Duplicate
Merged: issue 735649
Owner:
Closed: Jun 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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5.3%-35.7% regression in media.tough_video_cases_tbmv2 at 480772:480829

Project Member Reported by ulan@google.com, Jun 28 2017

Issue description

See the link to graphs below.
 

Comment 2 by u...@chromium.org, Jun 28 2017

Status: Untriaged (was: Assigned)
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Jun 28 2017

Mergedinto: 735649
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : hpayer
  Commit : 0d2ed6c3287ec48ee06ec1b69287ed4bf0dd60d7
  Date   : Mon Jun 19 10:16:13 2017
  Subject: [heap] Allow a minimum semi-space size of 512K.

Bisect Details
  Configuration: mac_air_perf_bisect
  Benchmark    : media.tough_video_cases_tbmv2
  Metric       : memory:chrome:renderer_processes:reported_by_chrome:v8:heap:new_space:effective_size_avg/video.html?src_tulip2.mp3_type_audio_seek
  Change       : 34.87% | 665456.0 -> 897533.333333

Revision                           Result                 N
chromium@480771                    665456 +- 2268.59      6      good
chromium@480800                    663299 +- 188.524      6      good
chromium@480815                    662976 +- 1086.82      6      good
chromium@480819                    663187 +- 246.23       6      good
chromium@480821                    663224 +- 209.533      6      good
chromium@480821,v8@8a32788f39      663280 +- 274.343      6      good
chromium@480821,v8@f626d5df7e      662843 +- 2037.18      6      good
chromium@480821,v8@bc717ae84b      662517 +- 2665.59      6      good
chromium@480821,v8@0d2ed6c328      897283 +- 3374.7       6      bad       <--
chromium@480821,v8@d6c9e534c8      897360 +- 2208.0       6      bad
chromium@480821,v8@2325ef535f      897648 +- 274.343      6      bad
chromium@480822                    897779 +- 102.242      6      bad
chromium@480829                    897533 +- 1003.65      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.tulip2.mp3.type.audio.seek media.tough_video_cases_tbmv2

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8975551147483683872

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=6341859015655424


| 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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