All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=677409

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg38-dowoM


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

chromium-rel-mac-retina

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8991949094753573232

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


===== SUSPECTED CL(s) =====
Subject : [heap] Use RAIL mode for starting incremental marking.
Author  : ulan
Commit description:
  
This patch delays start of incremental marking during L phase of RAIL
and adjusts ShouldOptimizeForLoadTime to check allocation limit.

BUG= chromium:613518 

Review-Url: https://codereview.chromium.org/2583033003
Cr-Commit-Position: refs/heads/master@{#41797}
Commit  : 039e29f7505cf75d27d7681fab51d50f53dcc7bd
Date    : Mon Dec 19 11:34:34 2016


===== TESTED REVISIONS =====
Revision                       Mean     Std Dev   N  Good?
chromium@439529                2.66511  3.40676   9  good
chromium@439559                1.987    0.626056  9  good
chromium@439567                2.77122  4.70646   9  good
chromium@439571                2.10133  0.582597  6  good
chromium@439571,v8@81dd9847cf  1.971    0.413879  6  good
chromium@439571,v8@58247e87be  2.06083  0.433228  6  good
chromium@439571,v8@039e29f750  5.843    2.73205   6  bad    <--
chromium@439571,v8@52702e55aa  5.97933  1.19008   6  bad
chromium@439571,v8@8ac9e55aa6  5.89183  1.93479   6  bad
chromium@439572                5.68967  1.7994    6  bad
chromium@439573                5.8555   1.9935    6  bad
chromium@439574                6.03644  2.75882   9  bad
chromium@439589                5.45333  1.33379   6  bad
chromium@439649                5.67867  2.06332   6  bad

Bisect job ran on: mac_retina_perf_bisect
Bug ID: 677409

Test Command: src/tools/perf/run_benchmark -v --browser=release --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests memory.long_running_idle_gmail_background_tbmv2
Test Metric: v8-gc-incremental-step_max/v8-gc-incremental-step_max
Relative Change: 113.07%

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/mac_retina_perf_bisect/builds/1867
Job details: https://chromeperf.appspot.com/buildbucket_job_status/8991949094753573232


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  https://chromeperf.appspot.com/bad_bisect?try_job_id=5788626930106368

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