All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=715765

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDggp27pwkM


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

chromium-rel-mac12

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8981215796711742320

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

Hi samans@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 : samans
  Commit : 2040988b1345e6ce738bd03ab7ccd5f4b73a956b
  Date   : Tue Apr 11 23:58:35 2017
  Subject: Use MojoCompositorFrameSink in RendererCompositorFrameSink

Bisect Details
  Configuration: mac_10_12_perf_bisect
  Benchmark    : startup.cold.blank_page
  Metric       : open_tabs_time/open_tabs_time
  Change       : 49.80% | 293.166666667 -> 147.166666667

Revision             Result                  N
chromium@463741      293.167 +- 42.9748      6      good
chromium@463840      291.0 +- 41.3763        6      good
chromium@463844      295.0 +- 34.2345        6      good
chromium@463845      143.833 +- 25.7455      6      bad       <--
chromium@463846      148.0 +- 22.6716        6      bad
chromium@463847      156.333 +- 46.3177      6      bad
chromium@463853      163.5 +- 48.4304        6      bad
chromium@463865      152.167 +- 16.877       6      bad
chromium@463889      139.667 +- 22.8765      6      bad
chromium@463938      147.167 +- 43.3916      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 startup.cold.blank_page

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8981215796711742320

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5867808920961024


| 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!