New issue
Advanced search Search tips
Note: Color blocks (like or ) mean that a user may not be available. Tooltip shows the reason.

Issue 675706 link

Starred by 1 user

Issue metadata

Status: Duplicate
Merged: issue 675034
Owner: ----
Closed: Dec 2016
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



Sign in to add a comment

65.2% regression in smoothness.top_25_smooth at 438960:439062

Project Member Reported by jasontiller@chromium.org, Dec 19 2016

Issue description

See the link to graphs below.
 
All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=675706

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgr6qjrwoM


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

linux-release
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Dec 19 2016

Mergedinto: 675034
Status: Duplicate (was: Untriaged)

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


===== SUSPECTED CL(s) =====
Subject : Dont post delayed DoWork for disabled queues. We could do this for fences too but don't
Author  : alexclarke
Commit description:
  because that would break the throttling logic which needs to know when the next delayed
task is due to be run.

BUG= 671669 

Review-Url: https://codereview.chromium.org/2572893002
Cr-Commit-Position: refs/heads/master@{#438962}
Commit  : cab9842ac55e5b9dab766f11c6e412949d854483
Date    : Fri Dec 16 00:10:17 2016


===== TESTED REVISIONS =====
Revision         Mean     Std Dev  N   Good?
chromium@438959  7.54136  4.71425  14  good
chromium@438961  7.69407  2.56899  14  good
chromium@438962  10.8421  11.949   21  bad    <--
chromium@438963  12.3799  5.4746   14  bad
chromium@438966  12.1354  5.75763  9   bad
chromium@438972  11.9743  5.31407  9   bad
chromium@438985  10.9762  5.09326  6   bad
chromium@439011  11.2009  9.10397  14  bad
chromium@439062  11.5027  9.63608  14  bad

Bisect job ran on: linux_perf_bisect
Bug ID: 675706

Test Command: src/tools/perf/run_benchmark -v --browser=release --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=http...sports.yahoo.com. smoothness.top_25_smooth
Test Metric: mean_input_event_latency/http___sports.yahoo.com_
Relative Change: 52.53%

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/linux_perf_bisect/builds/6951
Job details: https://chromeperf.appspot.com/buildbucket_job_status/8992815368506236352


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5885071393816576

| 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!

Sign in to add a comment