New issue
Advanced search Search tips

Issue 722274 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

43.7% improvement in page_cycler_v2.top_10_mobile at 470439:470501

Project Member Reported by yhirano@chromium.org, May 15 2017

Issue description

See the link to graphs below.
 
All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=722274

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgqv6T8AoM


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

android-nexus5
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, May 15 2017

Mergedinto: 721238
Status: Duplicate (was: Assigned)

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

Suspected Commit
  Author : yhirano
  Commit : 91088a195969f5af61f404c9f02edc622cbe373a
  Date   : Wed May 10 05:49:31 2017
  Subject: Add Field Trial Testing Configuration for MojoLoading

Bisect Details
  Configuration: android_nexus5_perf_bisect
  Benchmark    : page_cycler_v2.top_10_mobile
  Metric       : timeToFirstContentfulPaint_avg/pcv1-cold/http___www.baidu.com_s?word_google
  Change       : 36.78% | 682.910166667 -> 431.7416

Revision             Result                  N
chromium@470438      682.91 +- 54.9911       6      good
chromium@470470      681.625 +- 41.2453      7      good
chromium@470486      665.797 +- 23.2637      6      good
chromium@470488      678.992 +- 23.5758      5      good
chromium@470489      674.404 +- 15.8035      5      good
chromium@470490      420.028 +- 260.788      7      bad       <--
chromium@470494      433.503 +- 259.882      6      bad
chromium@470501      431.742 +- 198.337      5      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=http...www.baidu.com.s.word.google page_cycler_v2.top_10_mobile

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8979537396253243824

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5277524235386880


| 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