All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=592305

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDA39u8owoM


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

win-zenbook

=== Auto-CCing suspected CL author verwaest@chromium.org ===

Hi verwaest@chromium.org, the bisect results pointed to your CL below as possibly
causing a regression. Please have a look at this info and see whether
your CL be related.


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


===== SUSPECTED CL(s) =====
Subject : Reland "Speed up the LookupIterator"
Author  : verwaest
Commit description:
  
BUG=

Review URL: https://codereview.chromium.org/1765713003

Cr-Commit-Position: refs/heads/master@{#34492}
Commit  : 683223b4ba4857f4b3c44afffc3939e1dd22269d
Date    : Fri Mar 04 11:53:24 2016


===== TESTED REVISIONS =====
Revision                Mean Value  Std. Dev.   Num Values  Good?
chromium@379305         268.696951  2.660116    8           good
chromium@379307         266.645237  1.468554    8           good
chromium@379308         266.523498  2.725476    7           good
chromium@379308,v8@6783854603267.877745  2.212104    5           good
chromium@379308,v8@683223b4ba260.668652  2.064954    8           bad
chromium@379309         259.923552  2.262146    5           bad
chromium@379312         259.514415  1.442895    5           bad
chromium@379318         261.375181  2.315373    5           bad
chromium@379326         256.277267  3.332016    5           bad
chromium@379343         260.048157  1.848121    5           bad

Bisect job ran on: mac_hdd_perf_bisect
Bug ID: 592305

Test Command: src/tools/perf/run_benchmark -v --browser=release --output-format=chartjson --also-run-disabled-tests dromaeo.domcoretraverse
Test Metric: dom/dom
Relative Change: 3.08%
Score: 99.9

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/mac_hdd_perf_bisect/builds/442
Job details: https://chromeperf.appspot.com/buildbucket_job_status/9018877013935002368


| 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!

The following revision refers to this bug:
  https://chromium.googlesource.com/v8/v8.git/+/93e744a77766f8643d1216852ebf3a94713a4c5b

commit 93e744a77766f8643d1216852ebf3a94713a4c5b
Author: verwaest <verwaest@chromium.org>
Date: Mon Mar 07 16:43:12 2016

Speed up indexed interceptor handling in the LookupIterator

BUG= chromium:592305 
LOG=n

Review URL: https://codereview.chromium.org/1770833002

Cr-Commit-Position: refs/heads/master@{#34552}

[modify] https://crrev.com/93e744a77766f8643d1216852ebf3a94713a4c5b/src/ic/ic.cc
[modify] https://crrev.com/93e744a77766f8643d1216852ebf3a94713a4c5b/src/lookup.cc
[modify] https://crrev.com/93e744a77766f8643d1216852ebf3a94713a4c5b/src/lookup.h

 Issue 592301  has been merged into this issue.

 Issue 592301  has been merged into this issue.

The following revision refers to this bug:
  https://chromium.googlesource.com/v8/v8.git/+/79ccf34a78ea0e266e3a36ed63649ef49121f644

commit 79ccf34a78ea0e266e3a36ed63649ef49121f644
Author: verwaest <verwaest@chromium.org>
Date: Thu Mar 10 10:55:46 2016

Inline calling into the interceptor into the IC callbacks rather than going through the LookupIterator.

This is highly performance sensitive as there is no faster path; it's
used directly by the IC.

BUG= chromium:592305 
LOG=n

Review URL: https://codereview.chromium.org/1778493005

Cr-Commit-Position: refs/heads/master@{#34660}

[modify] https://crrev.com/79ccf34a78ea0e266e3a36ed63649ef49121f644/src/ic/handler-compiler.cc
[modify] https://crrev.com/79ccf34a78ea0e266e3a36ed63649ef49121f644/src/ic/ic.cc
[modify] https://crrev.com/79ccf34a78ea0e266e3a36ed63649ef49121f644/src/objects-inl.h
[modify] https://crrev.com/79ccf34a78ea0e266e3a36ed63649ef49121f644/src/objects.cc
[modify] https://crrev.com/79ccf34a78ea0e266e3a36ed63649ef49121f644/src/objects.h