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Issue metadata

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



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4.8%-410.1% regression in smoothness.key_mobile_sites_smooth at 523360:523468

Project Member Reported by kraynov@chromium.org, Dec 14 2017

Issue description

See the link to graphs below.
 
Project Member

Comment 1 by 42576172...@developer.gserviceaccount.com, Dec 14 2017

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=794951

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=4ef0d7a13041fbe79763f66e8806697bf042c245ac9f4ca5ceae1e362e583335


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

android-nexus5
android-nexus5X
android-nexus6
android-nexus7v2
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Dec 14 2017

Mergedinto: 794563
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : Yutaka Hirano
  Commit : 47b8f2451e900fe2c5fc4d94046925f40fea2fc7
  Date   : Tue Dec 12 10:52:56 2017
  Subject: Update RendererSideResourceScheduler testing config

Bisect Details
  Configuration: android_nexus7_perf_bisect
  Benchmark    : smoothness.key_mobile_sites_smooth
  Metric       : input_event_latency_discrepancy/Wordpress
  Change       : 310.62% | 452.002883333 -> 1856.00691667

Revision             Result                  N
chromium@523359      452.003 +- 211.583      6      good
chromium@523387      507.181 +- 153.117      6      good
chromium@523394      528.495 +- 183.487      6      good
chromium@523395      455.146 +- 120.373      6      good
chromium@523396      1978.87 +- 284.051      6      bad       <--
chromium@523398      2084.96 +- 771.389      6      bad
chromium@523401      2139.75 +- 532.19       6      bad
chromium@523414      2041.48 +- 853.049      6      bad
chromium@523468      1856.01 +- 269.202      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=Wordpress smoothness.key_mobile_sites_smooth

More information on addressing performance regressions:
  http://g.co/ChromePerformanceRegressions

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8960221111133255824


For feedback, file a bug with component Speed>Bisection

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