All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=754691

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=0874e081bb90f5edbac445a7f67d85750cbd463e423de62548557428698657b8


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

android-nexus7v2
chromium-rel-mac11-air

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8971552827701979904

=== 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_air_perf_bisect
  Benchmark    : thread_times.tough_scrolling_cases
  Metric       : thread_raster_cpu_time_per_frame/thread_raster_cpu_time_per_frame
  Change       : 4.52% | 1.3527617204 -> 1.4139443776

Revision             Result                    N
chromium@482843      1.35276 +- 0.0280758      6      good
chromium@482882      1.34379 +- 0.0451354      6      good
chromium@482901      1.34219 +- 0.0190307      6      good
chromium@482903      1.33765 +- 0.0417616      6      good
chromium@482904      1.39646 +- 0.0239871      6      bad       <--
chromium@482906      1.38504 +- 0.0263555      6      bad
chromium@482911      1.38915 +- 0.0426347      6      bad
chromium@482920      1.41394 +- 0.0225165      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/8971552827701979904


For feedback, file a bug with component Speed>Bisection