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Issue 722917 link

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Issue metadata

Status: Duplicate
Merged: issue 722481
Owner: ----
Closed: May 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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25% regression in media.android.tough_video_cases at 471272:471298

Project Member Reported by hubbe@google.com, May 16 2017

Issue description

See the link to graphs below.
 

Comment 1 by hubbe@google.com, May 16 2017

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=722917

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgquOqmwgM


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

android-nexus7v2
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, May 16 2017


=== BISECT JOB RESULTS ===
Bisect failed unexpectedly

Bisect was aborted with the following:
  root


Bisect Details
  Configuration: android_nexus7_perf_bisect
  Benchmark    : media.android.tough_video_cases
  Metric       : vm_shared_dirty_delta/crowd.ogg_gpu

Revision             Result                  N
chromium@471271      19.5556 +- 14.3604      9       good
chromium@471285      25.1429 +- 11.9044      14      unknown
chromium@471298      30.2222 +- 16.1107      9       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 media.android.tough_video_cases

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8979417907038983856

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=6155188185858048


| 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!
Project Member

Comment 5 by 42576172...@developer.gserviceaccount.com, May 17 2017

Mergedinto: 722481
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : jl
  Commit : 2a32710d5f0e31cf648120a9724d5c8b0d8e5a88
  Date   : Fri May 12 12:36:29 2017
  Subject: Inherit [Unforgeable] attributes between components

Bisect Details
  Configuration: android_nexus7_perf_bisect
  Benchmark    : media.android.tough_video_cases
  Metric       : vm_shared_dirty_delta/crowd.ogg_gpu
  Change       : 31.03% | 19.3333333333 -> 25.3333333333

Revision             Result                  N
chromium@471271      19.3333 +- 6.733        6      good
chromium@471278      17.3333 +- 4.6188       6      good
chromium@471282      17.3333 +- 4.6188       6      good
chromium@471283      18.6667 +- 7.30297      6      good
chromium@471284      25.3333 +- 4.6188       6      bad       <--
chromium@471285      26.6667 +- 7.30297      6      bad
chromium@471298      25.3333 +- 7.30297      6      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 media.android.tough_video_cases

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8979393829013689104

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=6155188185858048


| 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!

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