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Issue 698219 link

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Issue metadata

Status: Duplicate
Merged: issue 697879
Owner: ----
Closed: Mar 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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56.7% regression in v8.browsing_mobile at 453646:453672

Project Member Reported by mlippautz@google.com, Mar 3 2017

Issue description

See the link to graphs below.
 
All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=698219

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg5IG6vAoM


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

android-webview-nexus6
Mergedinto: 697879
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : Toon Verwaest
  Commit : 6477f0777f57736411a02837301451ffb0e349ff
  Date   : Tue Feb 28 14:08:05 2017
  Subject: [api] Mark api prototypes as prototype before configuring them

Bisect Details
  Configuration: android_webview_nexus6_aosp_perf_bisect
  Benchmark    : v8.browsing_mobile
  Metric       : v8-gc-scavenger_avg/browse_social/browse_social_twitter
  Change       : 38.67% | 5.69284656085 -> 7.97230833333

Revision                           Result                  N
chromium@453645                    5.69285 +- 1.96537      9       good
chromium@453645,v8@44debc4f71      5.95514 +- 2.98727      9       good
chromium@453645,v8@a5dfa06213      5.80314 +- 1.79396      9       good
chromium@453645,v8@6477f0777f      8.19223 +- 5.4604       14      bad       <--
chromium@453645,v8@a35616e324      7.82065 +- 2.85384      9       bad
chromium@453646                    7.88243 +- 2.00817      6       bad
chromium@453647                    8.43493 +- 2.75048      6       bad
chromium@453649                    8.824 +- 2.91707        6       bad
chromium@453652                    7.99153 +- 4.00355      9       bad
chromium@453659                    8.57869 +- 1.29376      6       bad
chromium@453672                    7.97231 +- 1.54329      6       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.social.twitter v8.browsing_mobile

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8986140313746542544

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5026825371123712


| O O | Visit http://www.chromium.org/developers/speed-infra/perf-bug-faq
|  X  | for more information addressing perf regression bugs. For feedback,
| / \ | file a bug with component Speed>Bisection.  Thank you!

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