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Issue 784213 link

Starred by 4 users

Issue metadata

Status: WontFix
Owner:
Closed: Nov 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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10.4% regression in media.desktop at 515556:515633

Project Member Reported by crouleau@google.com, Nov 12 2017

Issue description

See the link to graphs below.
 
Project Member

Comment 1 by 42576172...@developer.gserviceaccount.com, Nov 12 2017

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=784213

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=c84ba42c40a326ff15c024986ed5211fea7b6ad4146de6900ad02e140165b9f0


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

chromium-rel-win10
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Nov 13 2017

Cc: jgruber@chromium.org
Owner: jgruber@chromium.org
Status: Assigned (was: Untriaged)

=== Auto-CCing suspected CL author jgruber@chromium.org ===

Hi jgruber@chromium.org, the bisect results pointed to your CL, please take a look at the
results.


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

Suspected Commit
  Author : Jakob Gruber
  Commit : b0996927fb63f1e2277c8d1cddf4cae2435bdedb
  Date   : Fri Nov 10 10:46:33 2017
  Subject: Revert "[snapshot] Flip --lazy-handler-deserialization"

Bisect Details
  Configuration: winx64_10_perf_bisect
  Benchmark    : media.desktop
  Metric       : memory:chrome:all_processes:reported_by_chrome:v8:effective_size_avg/video.html?src_garden2_10s.webm
  Change       : 10.22% | 5132288.0 -> 5656576.0

Revision                           Result                 N
chromium@515555                    5132288 +- 0.0         6      good
chromium@515565                    5190542 +- 494303      9      good
chromium@515570                    5190542 +- 494303      9      good
chromium@515571                    5219669 +- 478607      6      good
chromium@515571,v8@9eaf163d6f      5132288 +- 0.0         6      good
chromium@515571,v8@5a6cc315f8      5132288 +- 0.0         6      good
chromium@515571,v8@b0996927fb      5743957 +- 478607      6      bad       <--
chromium@515572                    5743957 +- 478607      6      bad
chromium@515573                    5656576 +- 0.0         6      bad
chromium@515575                    5656576 +- 0.0         6      bad
chromium@515594                    5656576 +- 0.0         6      bad
chromium@515633                    5656576 +- 0.0         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=video.html.src.garden2.10s.webm media.desktop

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8963092810122114448


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

Comment 4 by 42576172...@developer.gserviceaccount.com, Nov 13 2017

Cc: tdresser@google.com
 Issue 784353  has been merged into this issue.
Status: Fixed (was: Assigned)
Memory regressions are expected since this CL reverts an experiment that's intended to reduce memory consumption. (We're planning to reland this in a bit)
Status: WontFix (was: Fixed)
Project Member

Comment 7 by 42576172...@developer.gserviceaccount.com, Nov 21 2017

Cc: u...@chromium.org
 Issue 787401  has been merged into this issue.
Project Member

Comment 8 by 42576172...@developer.gserviceaccount.com, Nov 23 2017

 Issue 785735  has been merged into this issue.

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