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Issue 776860 link

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Issue metadata

Status: Duplicate
Merged: issue 776025
Owner:
Last visit > 30 days ago
Closed: Oct 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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6.3%-11.4% regression in media.desktop at 508968:509839

Project Member Reported by hubbe@chromium.org, Oct 20 2017

Issue description

See the link to graphs below.
 
Project Member

Comment 1 by 42576172...@developer.gserviceaccount.com, Oct 20 2017

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=776860

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=f60c6e502a1b7bb514f7c57006d996a56ad0e6fe694e3a77c2bf73788b07c158


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

win-high-dpi
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Oct 21 2017

Mergedinto: 776025
Status: Duplicate (was: Assigned)

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

Suspected Commit
  Author : Jakob Gruber
  Commit : f7b09b3bdd96b4bd686b413c7a26e13f08ac4601
  Date   : Mon Oct 16 16:04:12 2017
  Subject: Reland "[snapshot] Ship lazy TFJ builtins"

Bisect Details
  Configuration: winx64_high_dpi_perf_bisect
  Benchmark    : media.desktop
  Metric       : memory:chrome:all_processes:reported_by_chrome:v8:effective_size_avg/video.html?src_tulip2.ogg_type_audio_seek
  Change       : 10.34% | 5070848.0 -> 5595136.0

Revision                           Result              N
chromium@508967                    5070848 +- 0.0      6      good
chromium@509185                    5070848 +- 0.0      6      good
chromium@509294                    5070848 +- 0.0      6      good
chromium@509322                    5070848 +- 0.0      6      good
chromium@509324                    5070848 +- 0.0      6      good
chromium@509325                    5070848 +- 0.0      6      good
chromium@509325,v8@972d460f4f      5070848 +- 0.0      6      good
chromium@509325,v8@f7b09b3bdd      5595136 +- 0.0      6      bad       <--
chromium@509325,v8@efa038361d      5595136 +- 0.0      6      bad
chromium@509325,v8@6627b0aaf7      5595136 +- 0.0      6      bad
chromium@509326                    5595136 +- 0.0      6      bad
chromium@509329                    5595136 +- 0.0      6      bad
chromium@509336                    5595136 +- 0.0      6      bad
chromium@509349                    5595136 +- 0.0      6      bad
chromium@509403                    5595136 +- 0.0      6      bad
chromium@509839                    5595136 +- 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.tulip2.ogg.type.audio.seek media.desktop

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8965194488252864352


For feedback, file a bug with component Speed>Bisection
Labels: Performance-Media

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