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Issue 759587 link

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Issue metadata

Status: WontFix
Owner: ----
Closed: Oct 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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144.4% regression in system_health.common_mobile at 493342:493484

Project Member Reported by kraynov@chromium.org, Aug 28 2017

Issue description

See the link to graphs below.
 
Project Member

Comment 1 by 42576172...@developer.gserviceaccount.com, Aug 28 2017

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=759587

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=86e073b2a55f43b38c25e4d538c4727ac88e431900a8b6ba57994043612db9d4


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

android-webview-nexus6
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Aug 28 2017


=== BISECT JOB RESULTS ===
NO Perf regression found

Bisect Details
  Configuration: android_webview_nexus6_aosp_perf_bisect
  Benchmark    : system_health.common_mobile
  Metric       : timeToFirstPaint_avg/load_media/load_media_imgur

Revision             Result                  N
chromium@493341      638.993 +- 655.978      21      good
chromium@493484      622.123 +- 740.945      21      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=load.media.imgur system_health.common_mobile

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8970007159718042704


For feedback, file a bug with component Speed>Bisection
Trying a bisect on a wider range.
Cc: shaseley@google.com
Owner: shaseley@google.com
Status: Assigned (was: Untriaged)

=== Auto-CCing suspected CL author shaseley@google.com ===

Hi shaseley@google.com, 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 : Scott Haseley
  Commit : c3f876b18c07c50b360b93fb91ec67549b58deb8
  Date   : Thu Aug 10 00:40:36 2017
  Subject: Use swap time for all first paint times in TBM, UMA, UKM & web perf API

Bisect Details
  Configuration: android_webview_nexus6_aosp_perf_bisect
  Benchmark    : system_health.common_mobile
  Metric       : timeToFirstPaint_avg/load_media/load_media_imgur
  Change       : 80.00% | 310.867333333 -> 559.561333333

Revision             Result                  N
chromium@492808      310.867 +- 36.2799      6      good
chromium@493078      296.359 +- 20.5069      6      good
chromium@493146      294.983 +- 29.5376      6      good
chromium@493180      300.116 +- 29.8054      6      good
chromium@493189      302.046 +- 45.641       6      good
chromium@493190      294.194 +- 30.7059      6      good
chromium@493191      563.409 +- 363.741      6      bad       <--
chromium@493193      643.932 +- 417.901      6      bad
chromium@493197      666.709 +- 232.136      6      bad
chromium@493213      551.028 +- 351.081      6      bad
chromium@493348      627.9 +- 360.171        6      bad
chromium@493888      559.561 +- 362.651      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=load.media.imgur system_health.common_mobile

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8966194069116535488


For feedback, file a bug with component Speed>Bisection
Project Member

Comment 7 by sheriffbot@chromium.org, Oct 10 2017

Labels: Hotlist-Recharge-BouncingOwner
Owner: ----
Status: Untriaged (was: Assigned)
The assigned owner "shaseley@google.com" is not able to receive e-mails, please re-triage.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot
Status: WontFix (was: Untriaged)
WontFix-ing as metrics change.

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