All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=747497

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=14e0893889219a711a61bc5280f8836e4a764ef47ee4c4fca1f8d571373a3af0


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

chromium-rel-win10
chromium-rel-win7-gpu-intel

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8973437254200094176

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

Suspected Commit
  Author : Florin Malita
  Commit : 4d3622e28d891b3a445275d132a6817bb83973ed
  Date   : Wed Jul 12 20:02:25 2017
  Subject: Remove flag to stop relying on Skia's bilerp-hack

Bisect Details
  Configuration: winx64intel_perf_bisect
  Benchmark    : smoothness.gpu_rasterization.tough_filters_cases
  Metric       : frame_times/MotionMark Focus
  Change       : 10.12% | 40.8446562884 -> 44.9793869334

Revision             Result                   N
chromium@486025      40.8447 +- 0.791413      6      good
chromium@486055      40.6421 +- 1.33242       6      good
chromium@486063      40.8231 +- 0.812528      9      good
chromium@486067      40.7328 +- 1.10673       6      good
chromium@486068      45.2008 +- 0.88748       6      bad       <--
chromium@486069      44.7623 +- 1.5384        6      bad
chromium@486070      44.7746 +- 4.67553       9      bad
chromium@486085      45.3293 +- 1.16914       6      bad
chromium@486144      44.9794 +- 1.29546       6      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=release_x64 --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=MotionMark.Focus smoothness.gpu_rasterization.tough_filters_cases

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8973437254200094176


For feedback, file a bug with component Speed>Bisection