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Issue 623834 link

Starred by 2 users

Issue metadata

Status: WontFix
Owner:
Closed: Jul 2016
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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61.5% regression in indexeddb_perf at 401856:401864

Project Member Reported by lanwei@google.com, Jun 28 2016

Issue description

See the link to graphs below.
 

Comment 1 by lanwei@google.com, Jun 28 2016

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=623834

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgosrVugoM


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

android-galaxy-s5
Project Member

Comment 2 by 42576172...@developer.gserviceaccount.com, Jun 28 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     Std Dev  N   Good?
chromium@401855  80515.6  7416.12  18  good
chromium@401864  78706.2  10187.7  18  bad

Bisect job ran on: android_s5_perf_bisect
Bug ID: 623834

Test Command: src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --upload-results --also-run-disabled-tests indexeddb_perf
Test Metric: vm_private_dirty_final_renderer/vm_private_dirty_final_renderer
Relative Change: 7.76%
Score: 0

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/android_s5_perf_bisect/builds/745
Job details: https://chromeperf.appspot.com/buildbucket_job_status/9008647957192642080


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5303343547678720

| 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!
Project Member

Comment 3 by sheriffbot@chromium.org, Jun 28 2016

Labels: Hotlist-Google
Project Member

Comment 4 by sheriffbot@chromium.org, Jul 2 2016

Labels: -M-53 M-54 MovedFrom-53
Moving this nonessential bug to the next milestone.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot
Lan, can you follow up on this?

From the instructions (https://chromium.googlesource.com/chromium/src/+/master/tools/perf/docs/perf_regression_sheriffing.md):
"After your shift, please try to follow up on the bugs you filed weekly. Kick off new bisects if the previous ones failed, and if the bisect picks a likely culprit follow up to ensure the CL author addresses the problem. If you are certain that a specific CL caused a performance regression, and the author does not have an immediate plan to address the problem, please revert the CL."
This just looks like a bimodal test. Let's not worry about it.
Status: WontFix (was: Assigned)

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