New issue
Advanced search Search tips

Issue 706887 link

Starred by 1 user

Issue metadata

Status: Duplicate
Merged: issue 705619
Owner: ----
Closed: Mar 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



Sign in to add a comment

7.3%-143.3% regression in page_cycler_v2.typical_25 at 459637:459662

Project Member Reported by lanwei@chromium.org, Mar 30 2017

Issue description

See the link to graphs below.
 
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Mar 30 2017

Mergedinto: 705619
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : sugoi
  Commit : 7ae2ba1892a8b4dee8d7c231ac0e0fbe66588912
  Date   : Sat Mar 25 13:59:47 2017
  Subject: Solving some telemetry tests' slowness

Bisect Details
  Configuration: win_x64_perf_bisect
  Benchmark    : page_cycler_v2.intl_ko_th_vi
  Metric       : timeToFirstContentfulPaint_avg/pcv1-cold/http___www.danawa.com_
  Change       : 99.51% | 670.726111112 -> 1338.13483333

Revision             Result                  N
chromium@459639      670.726 +- 547.508      9      good
chromium@459646      643.924 +- 280.524      9      good
chromium@459650      651.141 +- 433.256      9      good
chromium@459651      2046.48 +- 4004.26      6      bad       <--
chromium@459652      1827.47 +- 1583.16      6      bad
chromium@459653      1338.13 +- 1181.98      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 --story-filter=http...www.danawa.com. page_cycler_v2.intl_ko_th_vi

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8983675308171449840

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5775108649517056


| 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