All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=739187

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg3rq-qAoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgnsDZ7AgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg7oP0qwsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgnubQsgsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg7vXgnwsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg7tem9QoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgnsOpmgoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgnoD_8AoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgnoStkwkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgnp3NqgsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgnuK0yAgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg7p_CqQoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg7ruGvAkM


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

android-nexus5
android-nexus7v2
chromium-rel-mac-retina
chromium-rel-mac11
chromium-rel-mac11-air
chromium-rel-mac12
chromium-rel-mac12-mini-8gb
win-high-dpi

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8974987292474755824

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

Suspected Commit
  Author : Christopher Cameron
  Commit : 1894d423068be735560e0171922c833c4091b5d1
  Date   : Wed Jun 28 06:31:03 2017
  Subject: color: Enable color correct rendering by default

Bisect Details
  Configuration: mac_10_12_perf_bisect
  Benchmark    : thread_times.tough_scrolling_cases
  Metric       : thread_raster_cpu_time_per_frame/thread_raster_cpu_time_per_frame
  Change       : 17.52% | 0.853504092708 -> 1.00300220707

Revision             Result                      N
chromium@482815      0.853504 +- 0.0121597       6      good
chromium@482862      0.863284 +- 0.0148314       6      good
chromium@482885      0.853719 +- 0.00288054      6      good
chromium@482897      0.856443 +- 0.00838381      6      good
chromium@482903      0.861967 +- 0.00663301      6      good
chromium@482904      1.00696 +- 0.0129406        6      bad       <--
chromium@482905      1.00636 +- 0.0181232        6      bad
chromium@482906      1.00557 +- 0.0122549        6      bad
chromium@482908      1.003 +- 0.0156023          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 thread_times.tough_scrolling_cases

More information on addressing performance regressions:
  http://g.co/ChromePerformanceRegressions

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8974987292474755824


For feedback, file a bug with component Speed>Bisection