All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=722870

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgmui-ogsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgmpzJ4wgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg6tKY8wkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgmsjM8ggM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgmtXqpgoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgmtGepAsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg6tu2xQgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgmpWHswoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgqu2YtAsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg6vuC_wsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg6o3sswkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgmvzKqgoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgmuWwtgsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg6uOL5AoM


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

chromium-rel-mac11-pro
chromium-rel-win10
chromium-rel-win7-gpu-intel

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8979425220097320112

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

Hi yhirano@chromium.org, the bisect results pointed to your CL, please take a look at the
results.


=== BISECT JOB RESULTS ===
Perf regression found with culprit

Suspected Commit
  Author : Yutaka Hirano
  Commit : f20d10a747ef558a18cdd6925df977352e477997
  Date   : Mon May 15 04:44:45 2017
  Subject: Revert "Set URLResponseBodyConsumer::kMaxNumConsumedBytesInTask to 32K"

Bisect Details
  Configuration: winx64intel_perf_bisect
  Benchmark    : loading.desktop
  Metric       : timeToFirstMeaningfulPaint_avg/pcv1-warm/FarsNews
  Change       : 80.62% | 207.075666666 -> 374.022

Revision             Result                  N
chromium@471649      207.076 +- 11.3966      6      good
chromium@471666      203.949 +- 4.47755      6      good
chromium@471668      203.785 +- 4.35584      6      good
chromium@471669      205.194 +- 7.09719      6      good
chromium@471670      372.267 +- 5.34119      6      bad       <--
chromium@471674      370.741 +- 5.50606      6      bad
chromium@471682      374.022 +- 6.27605      6      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=release_x64 --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=FarsNews loading.desktop

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8979425220097320112

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=6145428946419712


| 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 Speed>Bisection.  Thank you!

 Issue 722869  has been merged into this issue.

 Issue 723153  has been merged into this issue.

 Issue 723155  has been merged into this issue.

It's a revert CL.

 Issue 724094  has been merged into this issue.

 Issue 727507  has been merged into this issue.

 Issue 727507  has been merged into this issue.

 Issue 733260  has been merged into this issue.