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Issue 797383 link

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Issue metadata

Status: Duplicate
Merged: issue 797379
Owner: ----
Closed: Dec 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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2404.8% regression in smoothness.image_decoding_cases at 525820:525841

Project Member Reported by briander...@chromium.org, Dec 22 2017

Issue description

See the link to graphs below.
 
Project Member

Comment 1 by 42576172...@developer.gserviceaccount.com, Dec 22 2017

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=797383

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=f5818bd77c57a9542a1c2db0f19797f1435b4c32a4d8cc1c8370327781a1f5c6


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

android-webview-nexus6
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Dec 23 2017

Mergedinto: 797379
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : Fadi Meawad
  Commit : e442ea0666d7af6e564fc1eb2c31deb05ed54035
  Date   : Thu Dec 21 22:54:43 2017
  Subject: Reland "[PageLifecyle] Move the launch process state to Webkit/common"

Bisect Details
  Configuration: android_webview_nexus6_aosp_perf_bisect
  Benchmark    : smoothness.image_decoding_cases
  Metric       : mean_frame_time/yuv_decoding.html
  Change       : 2357.07% | 32.7123333333 -> 803.765666667

Revision             Result                   N
chromium@525819      32.7123 +- 0.432855      6      good
chromium@525830      32.6542 +- 0.639235      6      good
chromium@525836      32.541 +- 0.551505       6      good
chromium@525839      31.8938 +- 0.57405       6      good
chromium@525840      31.9177 +- 0.490587      6      good
chromium@525841      803.766 +- 3.78301       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=yuv.decoding.html smoothness.image_decoding_cases

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8959471818442541008


For feedback, file a bug with component Speed>Bisection

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