All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=661557

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgw-KcsQoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgw5rhrwkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgw6CJuwsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgw7PBqwoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgg5fI5goM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgw7jUvAsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgw56xvQoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgw5TJsQoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgo6DpqQoM


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

android-nexus5
android-nexus5X
android-nexus6
android-nexus7v2
chromium-rel-mac11
chromium-rel-win7-dual
chromium-rel-win7-x64-dual
chromium-rel-win8-dual
linux-release

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8997105879907146016

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


===== SUSPECTED CL(s) =====
Subject : [compiler] Ship Ignition for all TurboFan code.
Author  : mstarzinger
Commit description:
  
This enables Ignition unconditionally for all code that is destined for
optimization with TurboFan. This ensures all optimization attempts will
go through the BytecodeGraphBuilder and that the AstGraphBuilder pipe is
dried out in practice.

patch from issue 2427953002 at patchset 120001 (http://crrev.com/2427953002#ps120001)

R=mvstanton@chromium.org,rmcilroy@chromium.org

Review-Url: https://codereview.chromium.org/2453973004
Cr-Commit-Position: refs/heads/master@{#40663}
Commit  : b4b436de6ad42e83d259418965a1a62c540a9fc7
Date    : Mon Oct 31 09:43:43 2016


===== TESTED REVISIONS =====
Revision                       Mean     Std Dev  N  Good?
chromium@428693                1154.67  12.8582  5  good
chromium@428693,v8@b4b436de6a  1201.73  7.61137  5  bad    <--
chromium@428693,v8@174da467ec  1204.41  16.3377  5  bad
chromium@428694                1191.9   8.29479  5  bad
chromium@428695                1210.97  10.2143  5  bad

Bisect job ran on: win_x64_perf_bisect
Bug ID: 661557

Test Command: src/tools/perf/run_benchmark -v --browser=release_x64 --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests speedometer
Test Metric: React-TodoMVC/React-TodoMVC
Relative Change: 4.88%
Score: 99.8

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/win_x64_perf_bisect/builds/1525
Job details: https://chromeperf.appspot.com/buildbucket_job_status/8997105879907146016


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5871915950931968

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