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Issue 752071 link

Starred by 1 user
Status: Duplicate
Merged: issue 750760
Owner:
tebbi@chromium.org
Closed: Aug 2017
Cc:
tebbi@chromium.org
Components:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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4.6%-900.3% regression in v8.runtimestats.browsing_desktop at 489882:490179

Project Member Reported by tebbi@chromium.org, Aug 3 2017 
See the link to graphs below.
Project Member

Comment 1 by 42576172...@developer.gserviceaccount.com, Aug 3 2017 

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=752071

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=c8ad6ede0a172ced91bb658109a0e44046a6a66282d0302805cc17120332ca8e


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

android-nexus5
android-nexus6
android-nexus7v2
android-webview-nexus5X
chromium-rel-mac-retina
chromium-rel-mac11
chromium-rel-mac11-pro
chromium-rel-win7-dual
chromium-rel-win7-gpu-intel
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Aug 3 2017 


=== BISECT JOB RESULTS ===
Perf regression found but unable to continue

Bisect was stopped because a commit couldn't be classified as either
good or bad.


Bisect Details
  Configuration: android_nexus7_perf_bisect
  Benchmark    : v8.runtimestats.browsing_mobile
  Metric       : Optimize:duration_avg/browse_news/browse_news_qq

Revision             Result                  N
chromium@489964      14.5647 +- 22.6038      21      good
chromium@490019      17.8118 +- 27.1156      21      unknown
chromium@490074      18.8275 +- 20.4027      21      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.news.qq v8.runtimestats.browsing_mobile

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8972282879566699488


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

Comment 6 by 42576172...@developer.gserviceaccount.com, Aug 22 2017 


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

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


Bisect Details
  Configuration: android_nexus6_perf_bisect
  Benchmark    : v8.runtimestats.browsing_mobile
  Metric       : JavaScript:duration_avg/browse_news/browse_news_cricbuzz


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.news.cricbuzz v8.runtimestats.browsing_mobile

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8970554650740542528


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

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

Mergedinto: 750760
Status: Duplicate (was: Assigned)

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

Suspected Commit
  Author : Michael Hablich
  Commit : 9bac201e0e32f198064a10c3032dbd839e8e8efd
  Date   : Thu Jul 27 07:10:02 2017
  Subject: Version 6.2.52.1 (cherry-pick)

Bisect Details
  Configuration: winx64ati_perf_bisect
  Benchmark    : v8.runtimestats.browsing_desktop
  Metric       : v8-gc-memory-mark-compactor_sum/browse_social/browse_social_twitter_infinite_scroll
  Change       : 135.21% | 16.7795 -> 39.4663333333

Revision                           Result                  N
chromium@489889                    16.7795 +- 3.70744      6      good
chromium@489897                    13.2288 +- 5.65523      6      good
chromium@489897,v8@9bac201e0e      35.9067 +- 2.97127      6      bad       <--
chromium@489898                    38.5133 +- 6.17621      6      bad
chromium@489899                    34.7795 +- 4.76303      6      bad
chromium@489901                    34.667 +- 1.96185       6      bad
chromium@489905                    38.7563 +- 14.9648      6      bad
chromium@489921                    40.4583 +- 9.29903      6      bad
chromium@489952                    39.4663 +- 17.8017      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=browse.social.twitter.infinite.scroll v8.runtimestats.browsing_desktop

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8970554637628732208


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

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