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Issue 659549 link

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Issue metadata

Status: Duplicate
Merged: issue 658661
Owner: ----
Closed: Oct 2016
Cc:
EstimatedDays: ----
NextAction: ----
OS: ----
Pri: 2
Type: Bug-Regression



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5.6% regression in v8.browsing_desktop at 426869:426942

Project Member Reported by ulan@google.com, Oct 26 2016

Issue description

See the link to graphs below.
 

Comment 1 by ulan@google.com, Oct 26 2016

All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=659549

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg3fLt-QkM


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

chromium-rel-mac-retina
Project Member

Comment 3 by 42576172...@developer.gserviceaccount.com, Oct 26 2016

Mergedinto: 658661
Status: Duplicate (was: Untriaged)

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


===== SUSPECTED CL(s) =====
Subject : Fix history nav to a script-injected about:blank frame.
Author  : Charles Reis
Commit description:
  
This CL tracks whether the browser process has an about:blank history
item for subframes during a history navigation.  If the renderer would
be staying on about:blank, it can skip asking the browser and commit
the initial about:blank page synchronously.

BUG= 657896 , 639842
TEST=See bug for repro steps.
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_site_isolation
R=alexmos@chromium.org

Review URL: https://codereview.chromium.org/2438743005 .

Cr-Commit-Position: refs/heads/master@{#426880}
Commit  : 37c954965f2f221aec294a0a28dfbba1c7543f2a
Date    : Fri Oct 21 20:43:14 2016


===== TESTED REVISIONS =====
Revision         Mean     Std Dev  N  Good?
chromium@426868  207.145  1.96207  5  good
chromium@426878  207.373  3.79386  8  good
chromium@426879  209.704  1.27958  5  good
chromium@426880  218.668  4.89876  8  bad    <--
chromium@426881  216.256  4.15251  5  bad
chromium@426883  218.397  3.74234  7  bad
chromium@426887  221.374  4.74988  5  bad
chromium@426905  220.37   5.13955  5  bad
chromium@426942  218.544  5.02064  8  bad

Bisect job ran on: mac_retina_perf_bisect
Bug ID: 659549

Test Command: src/tools/perf/run_benchmark -v --browser=release --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests v8.browsing_desktop
Test Metric: v8-gc-scavenger_sum/v8-gc-scavenger_sum
Relative Change: 4.96%
Score: 99.9

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/mac_retina_perf_bisect/builds/1765
Job details: https://chromeperf.appspot.com/buildbucket_job_status/8997748870172839824


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5830996778287104

| 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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