All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=705375

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg7NzpqgoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgrK6YrwkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgrMKGpwoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgrNb6vgsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg7LjgpAoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgrJqhtQoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgrIL5vAoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgrOXiuQsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgrOCeowkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgrKXBrwkM


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

chromium-rel-mac-retina
chromium-rel-mac11
chromium-rel-mac11-air
chromium-rel-mac11-pro
chromium-rel-mac12
chromium-rel-win7-gpu-ati
chromium-rel-win7-gpu-intel
chromium-rel-win7-gpu-nvidia
win-high-dpi
win-zenbook

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8983989934909025152

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

Hi fserb@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 : fserb
  Commit : ea6a16123f90b39e8de13c65cf04935107d252ae
  Date   : Wed Mar 22 04:15:36 2017
  Subject: Disables EnableAccelerationToAvoidReadbacks due to regression

Bisect Details
  Configuration: mac_10_11_perf_bisect
  Benchmark    : blink_perf.canvas
  Metric       : draw-hw-accelerated-canvas-2d-to-sw-canvas-2d/draw-hw-accelerated-canvas-2d-to-sw-canvas-2d
  Change       : 99.87% | 106506.559495 -> 143.526581939

Revision             Result                  N
chromium@458620      106507 +- 7902.96       6      good
chromium@458622      104496 +- 6840.89       6      good
chromium@458623      140.95 +- 2.10553       6      bad       <--
chromium@458626      144.844 +- 5.91474      6      bad
chromium@458632      144.444 +- 5.2537       6      bad
chromium@458643      141.673 +- 7.15225      6      bad
chromium@458666      142.888 +- 5.82525      6      bad
chromium@458712      143.527 +- 5.46828      6      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=release --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests blink_perf.canvas

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8983989934909025152

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5805192513060864


| 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!

This was on purpose. Tracking the bug to re-enable this code path.