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Issue 781156 link

Starred by 1 user
Status: Duplicate
Merged: issue 780202
Owner: ----
Closed: Nov 2017
Cc:
mlippautz@chromium.org
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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12%-23.7% regression in v8.browsing_desktop at 512443:512494

Project Member Reported by mlippautz@google.com, Nov 3 2017 
See the link to graphs below.
Project Member

Comment 1 by 42576172...@developer.gserviceaccount.com, Nov 3 2017 

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=781156

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=7c54ceaef5c40708f59b90fcbd985531c6930ef72fcfcc4470c3e9daca8ac0a1


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

chromium-rel-win10
chromium-rel-win7-dual
chromium-rel-win7-gpu-intel
chromium-rel-win7-x64-dual
chromium-rel-win8-dual
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Nov 3 2017 


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

Bisect Details
  Configuration: winx64_10_perf_bisect
  Benchmark    : v8.browsing_desktop
  Metric       : memory:chrome:renderer_processes:reported_by_chrome:v8:heap:effective_size_avg/browse_media/browse_media_youtube

Revision             Result                    N
chromium@512461      47799745 +- 11543454      21      good
chromium@512492      49689512 +- 16463281      21      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.media.youtube 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/8963956613518411120


For feedback, file a bug with component Speed>Bisection

Comment 4 by mlippautz@chromium.org, Nov 3 2017

Cc: -mlippautz@google.com mlippautz@chromium.org
Project Member

Comment 6 by 42576172...@developer.gserviceaccount.com, Nov 3 2017

Mergedinto: 780202
Status: Duplicate (was: Untriaged)

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

Suspected Commit
  Author : Zhenyao Mo
  Commit : 77604d4d295b16c91b935c0a3e035a574532a497
  Date   : Mon Oct 30 03:22:48 2017
  Subject: Call UpdateGPUInfo and UpdateGpuFeatureInfo always on GPU process launch.

Bisect Details
  Configuration: win_x64_perf_bisect
  Benchmark    : v8.browsing_desktop
  Metric       : memory:chrome:renderer_processes:reported_by_chrome:v8:heap:allocated_objects_size_avg/browse_tech/browse_tech_discourse_infinite_scroll
  Change       : 8.63% | 29770953.6769 -> 32341027.982

Revision             Result                   N
chromium@512430      29770954 +- 1447778      6      good
chromium@512434      30000711 +- 1576065      6      good
chromium@512435      32055197 +- 1336050      6      bad       <--
chromium@512436      32452494 +- 2129360      6      bad
chromium@512437      32813654 +- 2289216      6      bad
chromium@512443      32883887 +- 2301894      6      bad
chromium@512455      32354685 +- 3000496      6      bad
chromium@512480      32341028 +- 2159851      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.tech.discourse.infinite.scroll 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/8963943274123136416


For feedback, file a bug with component Speed>Bisection
►

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