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Issue 798321 link

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Issue metadata

Status: Duplicate
Merged: issue 797379
Owner:
Closed: Jan 2018
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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22.6%-76% regression in smoothness.key_silk_cases at 525408:525633

Project Member Reported by alexclarke@chromium.org, Jan 2 2018

Issue description

See the link to graphs below.
 
All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=798321

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=03c3fd78812f762921b7199fd5fc15c59d3c8ff7b433c76b8c4d2a7b69267556


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

android-webview-nexus5X
Cc: fmea...@chromium.org
Owner: fmea...@chromium.org
Status: Assigned (was: Untriaged)

=== Auto-CCing suspected CL author fmeawad@chromium.org ===

Hi fmeawad@chromium.org, the bisect results pointed to your CL, please take a look at the
results.


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

Suspected Commit
  Author : Fadi Meawad
  Commit : 99a51fcacaad639093357727542fb1ef7c376a25
  Date   : Thu Dec 21 02:10:15 2017
  Subject: [PageLifecyle] Move the launch process state to Webkit/common

Bisect Details
  Configuration: android_webview_arm64_aosp_perf_bisect
  Benchmark    : smoothness.key_silk_cases
  Metric       : mean_frame_time/silk_finance.html
  Change       : 76.88% | 17.7226666667 -> 31.3481666667

Revision             Result                    N
chromium@525407      17.7227 +- 0.0284136      6      good
chromium@525520      17.712 +- 0.0106771       6      good
chromium@525549      17.7223 +- 0.0554377      6      good
chromium@525556      17.7197 +- 0.0264449      6      good
chromium@525560      17.7302 +- 0.0305096      6      good
chromium@525562      17.7257 +- 0.0346891      6      good
chromium@525563      31.247 +- 0.313691        6      bad       <--
chromium@525577      31.8675 +- 3.26118        6      bad
chromium@525633      31.3482 +- 0.415041       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=silk.finance.html smoothness.key_silk_cases

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8958520535745137856


For feedback, file a bug with component Speed>Bisection
Mergedinto: 797379
Status: Duplicate (was: Assigned)

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