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Issue 800023 link

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Issue metadata

Status: Duplicate
Merged: issue 799000
Owner: ----
Closed: Jan 2018
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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5.1%-95.2% regression in thread_times.key_mobile_sites_smooth at 526575:526619

Project Member Reported by benjhayden@chromium.org, Jan 8 2018

Issue description

See the link to graphs below.
 
All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=800023

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=e4e2ff6e9366bd32df01f39ec48b96ef5410c39f6c5f55cc2dbfaeb46f25f2ba


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

android-webview-nexus6
Mergedinto: 799000
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : Fadi Meawad
  Commit : b85b48382bd9087a89afdc6fe0ac33dd71f1487e
  Date   : Wed Jan 03 02:18:33 2018
  Subject: Revert "Reland "[PageLifecyle] Move the launch process state to Webkit/common""

Bisect Details
  Configuration: android_webview_nexus6_aosp_perf_bisect
  Benchmark    : thread_times.key_mobile_sites_smooth
  Metric       : thread_GPU_cpu_time_per_frame/http___nytimes.com_
  Change       : 72.94% | 1.28031838955 -> 2.2142028558

Revision             Result                    N
chromium@526574      1.28032 +- 1.43518        14      good
chromium@526580      1.43101 +- 1.83041        14      good
chromium@526583      1.29397 +- 0.95568        6       good
chromium@526585      1.47743 +- 1.52625        9       good
chromium@526586      2.20434 +- 0.0528985      9       bad       <--
chromium@526597      2.19528 +- 0.0692728      9       bad
chromium@526619      2.2142 +- 0.0315145       9       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=http...nytimes.com. thread_times.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/8957941058448394560


For feedback, file a bug with component Speed>Bisection

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