All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=606760

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg5PjtqgoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg5K7EoAsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg5ITKrgoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg5OmGsAoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg5ND0tQkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg5O7MvQoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg5OmGsAkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg5NyZtQkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg5PfjpQoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgpOvb_ggM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg5O7aogoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg5Oq0rwkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg5ISevwoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgpI_soQoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg5LzVpgkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg5Iu6vwoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg5NDPqgoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg5M3tvwoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg5MTRrQoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg5JnErQoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg5M37oQoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg5O6wrAkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg5LCYuwoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg5K3gsAoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg5LCCpgoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg5O6wrAsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg5M3tvwkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg5LCCpgkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg5NzSuQkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgpISy_QgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgpPeyqgkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg5K20qQoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg5LyLtwoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg5K20qQkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg5K2quAoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg5K3epQoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg5NqKpgkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg5LyfrgoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg5Pz4vwoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg5LyfrgkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg5O7vpgoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg5J64twoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg5JnSvAoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg5I2zswkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg5Jn9qwoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg5PzioQoM


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

android-nexus5
chromium-rel-mac-retina
chromium-rel-mac10
linux-release

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

Hi rockot@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 : Add field trial testing config for MojoChannel
Author  : rockot
Commit description:
  
R=asvitkine@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1918583002

Cr-Commit-Position: refs/heads/master@{#389497}
Commit  : bf36f2d46f43eff11f56ea205615f092801b1004
Date    : Mon Apr 25 16:47:03 2016


===== TESTED REVISIONS =====
Revision                Mean Value  Std. Dev.   Num Values  Good?
chromium@389494         97.36       1.2502      5           good
chromium@389496         98.9        0.790569    5           good
chromium@389497         146.0       1.763519    5           bad         <-
chromium@389498         144.6       1.773415    5           bad
chromium@389501         144.6       2.12132     5           bad
chromium@389507         145.48      1.837662    5           bad

Bisect job ran on: mac_retina_perf_bisect
Bug ID: 606760

Test Command: src/tools/perf/run_benchmark -v --browser=release --output-format=chartjson --upload-results --also-run-disabled-tests blink_perf.pywebsocket
Test Metric: fetch-send-arraybuffer-window-async-verify/fetch-send-arraybuffer-window-async-verify
Relative Change: 49.42%
Score: 99.9

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/mac_retina_perf_bisect/builds/1265
Job details: https://chromeperf.appspot.com/buildbucket_job_status/9014314074165219232


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5345857688305664

| 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!

We saw general blob perf issues here as well. Dup of
https://bugs.chromium.org/p/chromium/issues/detail?id=609946

We're done with this experiment past M51. There were several performance improvements after 51 branched, so unless we see regressions on M52+ I don't think there's anything to do here. I'll be turning down the experiment on M51 soon.