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Issue 764617 link

Starred by 3 users
Status: Duplicate
Merged: issue 796127
Owner:
peria@chromium.org
Closed: Jan 2018
Cc:
bmeu...@chromium.org
jgruber@chromium.org
jarin@chromium.org
peria@chromium.org
wolenetz@chromium.org
ulan@google.com
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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5.1%-42.6% regression in v8.runtimestats.browsing_desktop at 500816:500844

Project Member Reported by jgruber@chromium.org, Sep 13 2017 
See the link to graphs below.
Project Member

Comment 1 by 42576172...@developer.gserviceaccount.com, Sep 13 2017 

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=764617

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=63a98918b28cc01f197cb47f823953aa83bbd287e2673a8e9efa27630f709efb


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

chromium-rel-mac-retina
chromium-rel-mac11
chromium-rel-mac11-air
chromium-rel-mac11-pro
chromium-rel-mac12-mini-8gb
Project Member

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

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

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

Hi peria@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 : Hitoshi Yoshida
  Commit : 3e5db563a65e3968d1e336312ae1bbb85e18321d
  Date   : Mon Sep 11 02:31:08 2017
  Subject: FieldTrial: Add field trial configuration for V8ContextSnapshot

Bisect Details
  Configuration: mac_10_12_mini_8gb_perf_bisect
  Benchmark    : v8.browsing_desktop
  Metric       : v8-gc-scavenger_avg/browse_social/browse_social_tumblr_infinite_scroll
  Change       : 33.05% | 1.65247089333 -> 2.1986714468

Revision             Result                   N
chromium@500815      1.65247 +- 0.13932       6      good
chromium@500823      1.63222 +- 0.252072      6      good
chromium@500827      1.69053 +- 0.325823      9      good
chromium@500828      1.6276 +- 0.164796       6      good
chromium@500829      2.1608 +- 0.297975       6      bad       <--
chromium@500831      2.19867 +- 0.786883      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=browse.social.tumblr.infinite.scroll v8.browsing_desktop

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8968587913324098144


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

Comment 4 by 42576172...@developer.gserviceaccount.com, Sep 14 2017

Cc: wolenetz@chromium.org
 Issue 765279  has been merged into this issue.
Project Member

Comment 5 by 42576172...@developer.gserviceaccount.com, Sep 15 2017 

 Issue 765553  has been merged into this issue.
Project Member

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

Cc: jarin@chromium.org bmeu...@chromium.org
 Issue 764615  has been merged into this issue.
Project Member

Comment 7 by 42576172...@developer.gserviceaccount.com, Sep 22 2017

Cc: ulan@google.com
 Issue 767721  has been merged into this issue.

Comment 8 by peria@chromium.org, Jan 15 2018

Mergedinto: 796127
Status: Duplicate (was: Assigned)
►

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