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Issue 777329 link

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Issue metadata

Status: Duplicate
Merged: issue 776375
Owner: ----
Closed: Oct 2017
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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3.2% regression in v8.browsing_desktop at 509302:509375

Project Member Reported by petermarshall@chromium.org, Oct 23 2017

Issue description

See the link to graphs below.
 
Project Member

Comment 1 by 42576172...@developer.gserviceaccount.com, Oct 23 2017

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=777329

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=b8871b960629ed3a0d9cd01fffe90f5076f050084d0b63a5c8f96125396c7631


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

win-high-dpi
Project Member

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

Mergedinto: 776375
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : Hajime Hoshi
  Commit : 1b8485c6d66e754d5fd729d636e5d1c50a261e21
  Date   : Tue Oct 17 09:52:33 2017
  Subject: Revert "Revert "Add RendererSchedulerImpl::V8TaskQueue()""

Bisect Details
  Configuration: winx64_high_dpi_perf_bisect
  Benchmark    : v8.browsing_desktop
  Metric       : memory:chrome:renderer_processes:reported_by_chrome:v8:heap:allocated_objects_size_avg/browse_search/browse_search_google_india
  Change       : 3.16% | 11247664.0258 -> 11603466.5591

Revision             Result                   N
chromium@509301      11247664 +- 82214.6      6      good
chromium@509338      11140540 +- 251747       6      good
chromium@509339      11547704 +- 260980       6      bad       <--
chromium@509340      11611663 +- 181845       6      bad
chromium@509341      11605684 +- 260601       6      bad
chromium@509343      11626914 +- 102713       6      bad
chromium@509348      11634476 +- 127703       6      bad
chromium@509357      11613329 +- 272743       6      bad
chromium@509375      11603467 +- 140266       6      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=release_x64 --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=browse.search.google.india v8.browsing_desktop

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8964954907957086176


For feedback, file a bug with component Speed>Bisection

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