All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=754247

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=7c7f2d4e3d99cbef97fac8ad36ab3fd27364f321727baab72c83fca6f1d04211


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

chromium-rel-mac-retina

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8971643999367338064

=== BISECT JOB RESULTS ===
NO Perf regression found

Bisect Details
  Configuration: mac_retina_perf_bisect
  Benchmark    : smoothness.gpu_rasterization.tough_path_rendering_cases
  Metric       : frame_times/IE Chalkboard

Revision             Result                   N
chromium@491926      32.3295 +- 0.664841      21      good
chromium@491970      32.3688 +- 0.73527       21      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 --story-filter=IE.Chalkboard smoothness.gpu_rasterization.tough_path_rendering_cases

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8971643999367338064


For feedback, file a bug with component Speed>Bisection

Bisect can't reproduce.