All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=699781

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDglPe36gkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDglJ_zqgsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg5PeD6AgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg1KHGqQsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg1JKToQsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg1MaDtQsM


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

android-nexus5X
chromium-rel-mac11-air
chromium-rel-mac12-mini-8gb

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8985647445736992288

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

Suspected Commit
  Author : dalecurtis
  Commit : f4a6dbf44108f1855faf5a78d4fb06c349ebd70d
  Date   : Fri Mar 03 00:27:26 2017
  Subject: Replace FFmpegDemuxer thread per element with base::TaskScheduler.

Bisect Details
  Configuration: mac_air_perf_bisect
  Benchmark    : media.tough_video_cases_extra
  Metric       : seek/tulip2.ogg_seek_cold
  Change       : 26.43% | 1.99916666667 -> 2.5275

Revision             Result                   N
chromium@454339      1.99917 +- 0.283938      6      good
chromium@454407      1.98583 +- 0.259944      6      good
chromium@454441      2.05778 +- 0.33355       9      good
chromium@454450      2.02833 +- 0.494115      9      good
chromium@454451      2.07833 +- 0.403588      6      good
chromium@454452      2.72333 +- 0.708755      6      bad       <--
chromium@454454      2.30833 +- 0.518845      9      bad
chromium@454458      2.45083 +- 0.630215      6      bad
chromium@454474      2.5275 +- 0.526771       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 media.tough_video_cases_extra

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8985647445736992288

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=4589472441696256


| 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!