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Issue metadata

Status: Duplicate
Merged: issue 646369
Owner:
Closed: Sep 2016
Components:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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2.4%-719.7% regression in smoothness.top_25_smooth at 417927:417973

Project Member Reported by kouhei@chromium.org, Sep 13 2016

Issue description

See the link to graphs below.
 

Comment 1 by kouhei@chromium.org, Sep 13 2016

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=646367

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgmcLmtQoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgmdrXvAoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgmdrDrQkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgmbrhugoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgmbG0rQkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgmbXMvgoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgmYqHrQsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgmbrfrwoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgmZ6JvAoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg6bPaqAoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgmYCZrgkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg6bOBuQoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgmYmUuQoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg6bOVpAoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgmZD7qgoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgmYmKpAoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgmZD7qgkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgmdCguwoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgmfrEvgoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgmaDisgoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgmc66qAoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgmaKKuwoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgmc6ssQkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgme7qvwkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg6dO9rwoM


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

android-nexus5
android-nexus6
chromium-rel-mac10
chromium-rel-win10
chromium-rel-win7-dual
chromium-rel-win7-gpu-ati
chromium-rel-win7-gpu-nvidia
chromium-rel-win8-dual
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Sep 14 2016

Mergedinto: 646369
Status: Duplicate (was: Assigned)

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


===== SUSPECTED CL(s) =====
Subject : Enable RAF Aligned Input on waterfall
Author  : dtapuska
Commit description:
  
BUG= 642368 

Review-Url: https://codereview.chromium.org/2324803005
Cr-Commit-Position: refs/heads/master@{#417946}
Commit  : 4d208cf0fb7fcad671dcf97c4c9c95af05f1b666
Date    : Mon Sep 12 15:36:17 2016


===== TESTED REVISIONS =====
Revision         Mean     Std Dev   N   Good?
chromium@417939  2.17625  0.849956  12  good
chromium@417943  1.8985   0.118918  8   good
chromium@417945  1.89515  0.128975  27  good
chromium@417946  8.59811  6.98217   27  bad    <--
chromium@417947  10.4366  7.47632   18  bad

Bisect job ran on: mac_10_10_perf_bisect
Bug ID: 646367

Test Command: src/tools/perf/run_benchmark -v --browser=release --output-format=chartjson --upload-results --also-run-disabled-tests smoothness.top_25_smooth
Test Metric: first_gesture_scroll_update_latency/http___games.yahoo.com
Relative Change: 229.87%
Score: 99.9

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/mac_10_10_perf_bisect/builds/2367
Job details: https://chromeperf.appspot.com/buildbucket_job_status/9001626219084758464


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5884153835290624

| 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!

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