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Issue metadata

Status: Duplicate
Merged: issue 602413
Owner:
Closed: Apr 2016
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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20.9% regression in page_cycler.morejs at 386380:386402

Project Member Reported by m...@chromium.org, Apr 12 2016

Issue description

This regression seems to have eaten-up all the gains brought by exo's work on components/exo/shell_surface.cc.  However, nothing in the suspected regression range seems to have reverted or modified that code.

Running bisect...
 

Comment 1 by m...@chromium.org, Apr 12 2016

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=602770

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICguNTmtwoM


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

android-nexus5X

Comment 2 by m...@chromium.org, Apr 12 2016

Cc: reve...@chromium.org
Bisect in-progress.  cc'ing potentially interested parties.
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Apr 13 2016


===== BISECT JOB RESULTS =====
Status: completed


=== Bisection aborted ===
The bisect was aborted because The metric values for the initial "good" and "bad" revisions do not represent a clear regression.
Please contact the the team (see below) if you believe this is in error.

=== Warnings ===
The following warnings were raised by the bisect job:

 * Bisect failed to reproduce the regression with enough confidence.

===== TESTED REVISIONS =====
Revision                Mean Value  Std. Dev.   Num Values  Good?
chromium@386379         33016.75    270.846862  12          good
chromium@386402         32897.625   212.102359  8           bad

Bisect job ran on: android_nexus5X_perf_bisect
Bug ID: 602770

Test Command: src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --also-run-disabled-tests page_cycler.morejs
Test Metric: vm_private_dirty_final_renderer/vm_private_dirty_final_renderer
Relative Change: 0.86%
Score: 0

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/android_nexus5X_perf_bisect/builds/78
Job details: https://chromeperf.appspot.com/buildbucket_job_status/9015551916821836800


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=602770

| 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 Tests>AutoBisect.  Thank you!

Comment 4 by m...@chromium.org, Apr 13 2016

Mergedinto: 602413
Status: Duplicate (was: Assigned)
Looks like moar Android bot weirdness, as recent measurements are below the regression-alert level.

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