New issue
Advanced search Search tips

Issue 705522 link

Starred by 0 users

Issue metadata

Status: Duplicate
Merged: issue 704773
Owner: ----
Closed: Mar 2017
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



Sign in to add a comment

110.7% regression in v8.runtimestats.browsing_mobile at 458711:458725

Project Member Reported by tebbi@chromium.org, Mar 27 2017

Issue description

See the link to graphs below.
 

Comment 1 by tebbi@chromium.org, Mar 27 2017

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=705522

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgrKfmvwkM


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

android-webview-nexus6
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Mar 27 2017

Mergedinto: 704773
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : bmeurer
  Commit : f0e3f8ea6f5b614259c6b5f1b87d64f31711f0bb
  Date   : Wed Mar 22 08:03:50 2017
  Subject: [ignition] Decrease code size multiplier to 24.

Bisect Details
  Configuration: android_webview_nexus6_aosp_perf_bisect
  Benchmark    : v8.runtimestats.browsing_mobile
  Metric       : Optimize:duration_avg/browse_news/browse_news_hackernews
  Change       : 89.82% | 28.088 -> 53.3155

Revision                           Result                  N
chromium@458710                    28.088 +- 20.4531       6      good
chromium@458712                    26.366 +- 16.2132       6      good
chromium@458713                    25.3677 +- 12.1277      6      good
chromium@458713,v8@01951c1598      23.6352 +- 13.6505      6      good
chromium@458713,v8@07a43140d4      23.3503 +- 9.62825      6      good
chromium@458713,v8@f0e3f8ea6f      55.2043 +- 9.20136      6      bad       <--
chromium@458714                    53.2025 +- 6.48898      6      bad
chromium@458718                    52.6595 +- 8.99388      6      bad
chromium@458725                    53.3155 +- 9.33675      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.news.hackernews v8.runtimestats.browsing_mobile

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8983962898090350416

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5013324560859136


| 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!

Sign in to add a comment