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Issue 627084 link

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Issue metadata

Status: Duplicate
Merged: issue 626639
Owner:
please use my google.com address
Closed: Jul 2016
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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14.5% regression in blink_perf.canvas at 404216:404236

Project Member Reported by tdres...@chromium.org, Jul 11 2016

Issue description

See the link to graphs below.
 
All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=627084

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgsuDZtgoM


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

chromium-rel-mac-retina
Owner: roc...@chromium.org
This appears to be the relanding of:
"Implements Mojo-based waiting for IPC::SyncChannel"

Feel free to dup on  crbug.com/622218 , if that makes sense.
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Jul 11 2016

Mergedinto: 626639
Status: Duplicate (was: Assigned)

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


===== SUSPECTED CL(s) =====
Subject : Reland Mojo-based waiting for IPC::SyncChannel
Author  : rockot
Commit description:
  
BUG=612500
TBR=jam@chromium.org

Review-Url: https://codereview.chromium.org/2101163002
Cr-Commit-Position: refs/heads/master@{#404233}
Commit  : 3c23629163a036c17017c4c2d16a0ac77f62d469
Date    : Thu Jul 07 20:27:22 2016


===== TESTED REVISIONS =====
Revision         Mean     Std Dev  N  Good?
chromium@404215  7077.99  127.873  5  good
chromium@404226  7094.14  36.7148  5  good
chromium@404231  7086.5   62.2031  5  good
chromium@404232  7074.58  19.9833  5  good
chromium@404233  6448.25  124.236  5  bad    <--
chromium@404234  6577.04  53.616   5  bad
chromium@404236  6482.67  94.7648  5  bad

Bisect job ran on: mac_retina_perf_bisect
Bug ID: 627084

Test Command: src/tools/perf/run_benchmark -v --browser=release --output-format=chartjson --upload-results --also-run-disabled-tests blink_perf.canvas
Test Metric: upload-canvas-2d-to-texture/upload-canvas-2d-to-texture
Relative Change: 8.41%
Score: 99.9

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/mac_retina_perf_bisect/builds/1402
Job details: https://chromeperf.appspot.com/buildbucket_job_status/9007429387979130576


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5863800306139136

| 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 component Tests>AutoBisect.  Thank you!

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