New issue
Advanced search Search tips

Issue 796217 link

Starred by 1 user
Status: Duplicate
Merged: issue 795323
Owner: ----
Closed: Dec 2017
Cc:
mlippautz@chromium.org
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



Sign in to add a comment

11.2%-41.4% regression in v8.browsing_mobile at 524044:524355

Project Member Reported by mlippautz@chromium.org, Dec 19 2017 
See the link to graphs below.
Project Member

Comment 1 by 42576172...@developer.gserviceaccount.com, Dec 19 2017 

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=796217

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=c288cbfa99db10f048dec9df02bdc693a656fca5337c6819b16b741f727d452d


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

android-nexus6
android-webview-nexus6
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Dec 19 2017 


=== BISECT JOB RESULTS ===
NO Perf regression found, tests failed to produce values

Bisect Details
  Configuration: android_nexus6_perf_bisect
  Benchmark    : v8.browsing_mobile
  Metric       : v8-gc-total_avg/browse_chrome/browse_chrome_omnibox


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.chrome.omnibox 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/8959760883353712960


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

Comment 5 by 42576172...@developer.gserviceaccount.com, Dec 20 2017

Mergedinto: 795323
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : Ali Ijaz Sheikh
  Commit : 4623b8223b487fb18b3af12fcf4fdbb7a194eca3
  Date   : Tue Dec 12 19:12:03 2017
  Subject: [heap] replace DisableInlineAllocationSteps with PauseAllocationObservers

Bisect Details
  Configuration: android_webview_nexus6_aosp_perf_bisect
  Benchmark    : v8.browsing_mobile
  Metric       : v8-gc-scavenger_sum/browse_news/browse_news_qq
  Change       : 12.95% | 68.6377142857 -> 77.5287777778

Revision                           Result                  N
chromium@524035                    68.6377 +- 24.0018      14      good
chromium@524053                    69.5438 +- 16.7835      9       good
chromium@524056                    68.6419 +- 12.8837      9       good
chromium@524056,v8@10d9c31488      69.5869 +- 13.686       9       good
chromium@524056,v8@4623b8223b      78.1482 +- 3.81703      6       bad       <--
chromium@524056,v8@1220809924      77.0709 +- 5.02583      9       bad
chromium@524056,v8@18d7c66131      78.5865 +- 9.74033      6       bad
chromium@524056,v8@f514cc967d      78.8397 +- 3.94051      6       bad
chromium@524056,v8@d5fbf0edcf      76.009 +- 13.3028       14      bad
chromium@524057                    76.9289 +- 9.54991      9       bad
chromium@524058                    80.0873 +- 16.6353      9       bad
chromium@524062                    76.3485 +- 14.3537      14      bad
chromium@524070                    77.5288 +- 7.82223      9       bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=android-webview --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=browse.news.qq 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/8959757042386315696


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

Sign in to add a comment