All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=705418

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgrL2drgoM


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

chromium-rel-mac12

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8983985679146588320

=== Auto-CCing suspected CL author brianosman@google.com ===

Hi brianosman@google.com, 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 : Brian Osman
  Commit : f4d443fd1bd8cffbcd7a07a48f3488ae871414e9
  Date   : Fri Mar 24 17:22:15 2017
  Subject: Fix SkImage_Gpu::getROPixels

Bisect Details
  Configuration: mac_10_12_perf_bisect
  Benchmark    : blink_perf.canvas
  Metric       : upload-video-to-sub-texture/upload-video-to-sub-texture
  Change       : 35.09% | 209.221050047 -> 135.80250626

Revision                             Result                  N
chromium@459454                      209.221 +- 4.18694      6      good
chromium@459520                      207.543 +- 5.24825      6      good
chromium@459537                      206.665 +- 2.03972      6      good
chromium@459541                      206.208 +- 2.34584      6      good
chromium@459542                      204.482 +- 5.68949      6      good
chromium@459542,skia@d3caa77f3c      207.378 +- 3.15895      6      good
chromium@459542,skia@f388093309      204.329 +- 5.66557      6      good
chromium@459542,skia@f4d443fd1b      136.905 +- 4.94866      6      bad       <--
chromium@459543                      137.76 +- 1.17287       6      bad
chromium@459545                      134.723 +- 5.36226      6      bad
chromium@459553                      138.348 +- 1.79645      6      bad
chromium@459585                      135.803 +- 4.90204      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/8983985679146588320

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=6084909774405632


| 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!

The CL in question was reverted due to a WebGL correctness problem, so the perf numbers on this this have returned to their previous value. See also: https://bugs.chromium.org/p/skia/issues/detail?id=6433