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Issue metadata

Status: Duplicate
Merged: issue 596881
Owner:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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3.9% regression in rasterize_and_record_micro.top_25_smooth at 382385:382424

Project Member Reported by qyears...@chromium.org, Mar 22 2016

Issue description

See the link to graphs below.
 
All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=597104

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg0NTf-AgM


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

android-nexus6
Project Member

Comment 2 by 42576172...@developer.gserviceaccount.com, Mar 23 2016


===== BISECT JOB RESULTS =====
Status: completed


===== SUSPECTED CL(s) =====
Subject : Enable GPU Rasterization for content with any author defined viewport.
Author  : vmiura
Commit description:
  
BUG= 591179 

Review URL: https://codereview.chromium.org/1817583003

Cr-Commit-Position: refs/heads/master@{#382394}
Commit  : b338ee0b3125007b94854e44ed7b6df820c72a75
Date    : Mon Mar 21 21:26:30 2016


===== TESTED REVISIONS =====
Revision                Mean Value  Std. Dev.   Num Values  Good?
chromium@382384         22.255458   0.136274    5           good
chromium@382389         22.265517   0.119182    5           good
chromium@382392         22.2461     0.062364    5           good
chromium@382393         22.294608   0.093981    5           good
chromium@382394         23.115058   0.061947    5           bad
chromium@382404         23.059608   0.166901    5           bad
chromium@382424         23.072317   0.111742    5           bad

Bisect job ran on: android_nexus6_perf_bisect
Bug ID: 597104

Test Command: src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --also-run-disabled-tests rasterize_and_record_micro.top_25_smooth
Test Metric: rasterize_time/rasterize_time
Relative Change: 3.67%
Score: 99.9

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/android_nexus6_perf_bisect/builds/2056
Job details: https://chromeperf.appspot.com/buildbucket_job_status/9017446796311116032


| O O | Visit http://www.chromium.org/developers/speed-infra/perf-bug-faq
|  X  | for more information addressing perf regression bugs. For feedback,
| / \ | file a bug with label Cr-Tests-AutoBisect.  Thank you!
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Mar 23 2016


===== BISECT JOB RESULTS =====
Status: completed


===== SUSPECTED CL(s) =====
Subject : Enable GPU Rasterization for content with any author defined viewport.
Author  : vmiura
Commit description:
  
BUG= 591179 

Review URL: https://codereview.chromium.org/1817583003

Cr-Commit-Position: refs/heads/master@{#382394}
Commit  : b338ee0b3125007b94854e44ed7b6df820c72a75
Date    : Mon Mar 21 21:26:30 2016


===== TESTED REVISIONS =====
Revision                Mean Value  Std. Dev.   Num Values  Good?
chromium@382384         27.385      0.334568    5           good
chromium@382389         27.6554     0.141788    5           good
chromium@382392         27.866      0.194811    5           good
chromium@382393         27.7908     0.328808    5           good
chromium@382394         36.9614     0.311835    5           bad
chromium@382404         36.8068     0.366566    5           bad
chromium@382424         37.3244     0.295975    5           bad

Bisect job ran on: android_nexus6_perf_bisect
Bug ID: 597104

Test Command: src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --also-run-disabled-tests rasterize_and_record_micro.top_25_smooth
Test Metric: rasterize_time/http___techcrunch.com
Relative Change: 36.30%
Score: 99.9

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/android_nexus6_perf_bisect/builds/2057
Job details: https://chromeperf.appspot.com/buildbucket_job_status/9017446783956415024


| O O | Visit http://www.chromium.org/developers/speed-infra/perf-bug-faq
|  X  | for more information addressing perf regression bugs. For feedback,
| / \ | file a bug with label Cr-Tests-AutoBisect.  Thank you!

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