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Issue 694632 link

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Issue metadata

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



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66.9% regression in smoothness.sync_scroll.key_mobile_sites_smooth at 445745:445795

Project Member Reported by rsch...@chromium.org, Feb 21 2017

Issue description

See the link to graphs below.
 
All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=694632

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg0MXX6ggM


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

android-nexus9
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Feb 22 2017

Mergedinto: 685179
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : wangxianzhu
  Commit : 9686be68e53348bab6f4ce846bf07d494f1575a0
  Date   : Tue Jan 24 19:34:26 2017
  Subject: Enable SlimmingPaintInvalidation

Bisect Details
  Configuration: android_nexus7_perf_bisect
  Benchmark    : smoothness.sync_scroll.key_mobile_sites_smooth
  Metric       : mean_input_event_latency/http___www.cnn.com_2012_10_03_politics_michelle-obama-debate_index.html
  Change       : 423.77% | 16.3573333333 -> 85.6748333333

Revision             Result                  N
chromium@445744      16.3573 +- 1.47638      6      good
chromium@445770      16.4928 +- 1.50504      6      good
chromium@445777      16.667 +- 2.40871       6      good
chromium@445778      76.7892 +- 19.4333      6      bad       <--
chromium@445779      82.3023 +- 21.1165      6      bad
chromium@445780      76.675 +- 19.5558       6      bad
chromium@445783      72.793 +- 5.72634       6      bad
chromium@445795      85.6748 +- 24.4809      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...www.cnn.com.2012.10.03.politics.michelle.obama.debate.index.html smoothness.sync_scroll.key_mobile_sites_smooth

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8987028873073592864

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5897804808978432


| 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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