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Issue 740915 link

Starred by 1 user
Status: Duplicate
Merged: issue 740920
Owner: ----
Closed: Jul 2017
Cc:
█ petermarshall@chromium.org
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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12.7%-90.9% regression in v8.browsing_mobile at 476641:485136

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=740915

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=5352d3aa9c1cbcc5f857e307d2606df508d1421950834902e504a4590ddb0222


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

android-nexus5
android-nexus5X
android-one
Project Member

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


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

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


Bisect Details
  Configuration: android_one_perf_bisect
  Benchmark    : v8.browsing_mobile
  Metric       : v8-gc-full-mark-compactor_sum/browse_media/browse_media_flickr_infinite_scroll


To Run This Test
  src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=browse.media.flickr.infinite.scroll v8.browsing_mobile

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8974364306757351408


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

Comment 5 by 42576172...@developer.gserviceaccount.com, Jul 13 2017 


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

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


Bisect Details
  Configuration: android_one_perf_bisect
  Benchmark    : v8.browsing_mobile
  Metric       : v8-gc-full-mark-compactor_sum/browse_media/browse_media_flickr_infinite_scroll


To Run This Test
  src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=browse.media.flickr.infinite.scroll v8.browsing_mobile

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8974364276618529104


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

Comment 7 by 42576172...@developer.gserviceaccount.com, Jul 13 2017

Mergedinto: 740920
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : Benedikt Meurer
  Commit : b9ee0657c6a0b7504d8bf3630e41923d5a72c71f
  Date   : Thu Jul 06 11:55:14 2017
  Subject: [builtins] Unified C++ implementation of Map and Set iterators.

Bisect Details
  Configuration: android_nexus5_perf_bisect
  Benchmark    : v8.browsing_mobile
  Metric       : v8-gc-scavenger_max/browse_social/browse_social_instagram
  Change       : 18.79% | 15.7314444444 -> 18.6868888889

Revision                           Result                  N
chromium@484537                    15.7314 +- 1.92541      9       good
chromium@484587                    15.2868 +- 1.26099      6       good
chromium@484612                    15.7154 +- 2.06341      9       good
chromium@484618                    15.9518 +- 2.80944      14      good
chromium@484618,v8@124ff5322d      15.4542 +- 1.32323      9       good
chromium@484618,v8@b9ee0657c6      19.8198 +- 2.93658      6       bad       <--
chromium@484618,v8@b520c6ed5e      19.1678 +- 3.95908      6       bad
chromium@484619                    18.546 +- 5.88705       9       bad
chromium@484620                    17.9864 +- 7.95674      21      bad
chromium@484621                    18.7956 +- 4.90141      14      bad
chromium@484624                    18.538 +- 0.722617      6       bad
chromium@484636                    18.6869 +- 4.06786      9       bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=browse.social.instagram v8.browsing_mobile

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8974199970157256832


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

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