New issue
Advanced search Search tips

Issue 721295 link

Starred by 1 user

Issue metadata

Status: Duplicate
Owner: ----
Closed: May 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



Sign in to add a comment

15.1% regression in blink_perf.paint at 470264:470326

Project Member Reported by hjd@google.com, May 11 2017

Issue description

Looks like maybe a revert.
 

Comment 1 by hjd@google.com, May 11 2017

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=721295

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgqtKNrAsM


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

chromium-rel-win10
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, May 11 2017

Mergedinto: 721287
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : nainar
  Commit : 5a563421457c31c1bb6cdac72c899db056f1adc7
  Date   : Tue May 09 10:04:48 2017
  Subject: Move border-*-width out of BorderValue and store on SurroundData in ComputedStyle instead

Bisect Details
  Configuration: winx64_10_perf_bisect
  Benchmark    : blink_perf.paint
  Metric       : large-table-collapsed-border-change/large-table-collapsed-border-change
  Change       : 12.73% | 93.76375 -> 105.69825

Revision             Result                  N
chromium@470263      93.7638 +- 3.07118      6      good
chromium@470271      94.5099 +- 1.44042      6      good
chromium@470272      105.626 +- 3.78164      6      bad       <--
chromium@470273      105.286 +- 1.8013       6      bad
chromium@470275      104.91 +- 1.0046        6      bad
chromium@470279      105.63 +- 3.05527       6      bad
chromium@470295      106.525 +- 3.84129      6      bad
chromium@470326      105.698 +- 2.41156      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 blink_perf.paint

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8979900069174209008

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5291520929824768


| 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