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Issue 737385 link

Starred by 2 users

Issue metadata

Status: WontFix
Owner:
Closed: Jun 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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17.7%-31.5% regression in blink_perf.paint at 482174:482179

Project Member Reported by sullivan@chromium.org, Jun 28 2017

Issue description

See the link to graphs below.
 
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Jun 28 2017

Cc: wangxianzhu@chromium.org
Owner: wangxianzhu@chromium.org

=== Auto-CCing suspected CL author wangxianzhu@chromium.org ===

Hi wangxianzhu@chromium.org, the bisect results pointed to your CL, please take a look at the
results.


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

Suspected Commit
  Author : Xianzhu Wang
  Commit : 94e1d1e92fa1d4734de08210747d36126ce235aa
  Date   : Sun Jun 25 21:49:01 2017
  Subject: Paint all collapsed borders of a row (or table) as one display item

Bisect Details
  Configuration: winx64nvidia_perf_bisect
  Benchmark    : blink_perf.paint
  Metric       : large-table-repaint/large-table-repaint
  Change       : 31.65% | 142.121333333 -> 187.1065

Revision             Result                  N
chromium@482173      142.121 +- 3.96894      6      good
chromium@482175      141.76 +- 10.9931       6      good
chromium@482176      187.107 +- 5.62592      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/8975580839481528288

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=6414202102611968


| 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!
Status: WontFix (was: Untriaged)
The CL improved more benchmarks. See:
https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgrveL7ggM

(Click "Hide All Improvements" then "Show All Improvements")

Cc: tdres...@chromium.org suzyh@chromium.org ksakamoto@chromium.org
 Issue 738132  has been merged into this issue.

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