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Issue 687588 link

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Issue metadata

Status: Duplicate
Merged: issue 687589
Owner: ----
Closed: Feb 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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118.9% regression in smoothness.sync_scroll.key_mobile_sites_smooth at 447118:447176

Project Member Reported by pmeenan@chromium.org, Feb 1 2017

Issue description

See the link to graphs below.
 
All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=687588

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgiK7F7AkM


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

android-nexus6
Mergedinto: 687589
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : smcgruer
  Commit : 2c04a7850056a21b6c1dcb6d63451c4a0f11e707
  Date   : Tue Jan 31 01:49:41 2017
  Subject: Force compositing inputs to be clean for location-related Element APIs

Bisect Details
  Configuration: android_nexus6_perf_bisect
  Benchmark    : smoothness.sync_scroll.key_mobile_sites_smooth
  Metric       : mean_input_event_latency/http___worldjournal.com_
  Change       : 112.38% | 68.5396666667 -> 145.567

Revision             Result                  N
chromium@447117      68.5397 +- 7.50214      6      good
chromium@447147      77.0742 +- 29.3938      6      good
chromium@447155      70.8518 +- 18.4574      6      good
chromium@447157      70.2125 +- 14.0931      6      good
chromium@447158      140.164 +- 59.0923      6      bad       <--
chromium@447159      142.752 +- 66.9374      6      bad
chromium@447162      140.045 +- 61.4778      9      bad
chromium@447176      145.567 +- 28.5541      6      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=http...worldjournal.com. smoothness.sync_scroll.key_mobile_sites_smooth

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8988847067234601184

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5588454160728064


| 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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