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Issue 724194 link

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Issue metadata

Status: Duplicate
Merged: issue 724105
Owner: ----
Closed: May 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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1.6% regression in smoothness.sync_scroll.key_mobile_sites_smooth at 472425:472431

Project Member Reported by tdres...@chromium.org, May 18 2017

Issue description

See the link to graphs below.
 
All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=724194

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgmqfeuwsM


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

android-webview-nexus6
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, May 20 2017

Mergedinto: 724105
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : delphick
  Commit : f5065232010251bad1cccddcc2a0d27ac2232f67
  Date   : Wed May 17 12:00:59 2017
  Subject: Schedule bitmap animation timers on the compositor task runner.

Bisect Details
  Configuration: android_webview_nexus6_aosp_perf_bisect
  Benchmark    : smoothness.sync_scroll.key_mobile_sites_smooth
  Metric       : frame_times/http___www.theverge.com_2012_10_28_3568746_amazon-7-inch-fire-hd-ipad-mini-ad-ballsy
  Change       : 1.58% | 16.974855557 -> 17.2430906001

Revision             Result                   N
chromium@472424      16.9749 +- 0.062216      6      good
chromium@472426      16.966 +- 0.0437572      6      good
chromium@472427      17.27 +- 0.0914376       6      bad       <--
chromium@472428      17.262 +- 0.0696056      6      bad
chromium@472431      17.2431 +- 0.12705       6      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=android-webview --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=http...www.theverge.com.2012.10.28.3568746.amazon.7.inch.fire.hd.ipad.mini.ad.ballsy smoothness.sync_scroll.key_mobile_sites_smooth

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8979237339226978704

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5542271220449280


| 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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