All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=758980

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=475f1a675f68f459301dce154a30c7ee803a7de6c15b7fbf4971926afd795090


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

chromium-rel-mac-retina

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8970284893350982736

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

Suspected Commit
  Author : sahel
  Commit : 955c32907a2c9921065fa628e0b8b5b28a7afe6c
  Date   : Thu Aug 17 14:56:44 2017
  Subject: Change tests that fail with wheel scroll latching and async wheel on.

Bisect Details
  Configuration: mac_retina_perf_bisect
  Benchmark    : system_health.common_desktop
  Metric       : mousewheel_response:energy_sum/browse_news/browse_news_flipboard
  Change       : 1924.64% | 0.0942195160212 -> 1.90760839664

Revision             Result                       N
chromium@490934      0.0942195 +- 0.0252134       6      good
chromium@493098      0.0965893 +- 0.00971929      6      good
chromium@494180      0.104847 +- 0.0174242        6      good
chromium@494721      0.10759 +- 0.0271018         6      good
chromium@494992      0.103297 +- 0.0167659        6      good
chromium@495127      0.0966947 +- 0.0161454       6      good
chromium@495161      0.104815 +- 0.0255062        6      good
chromium@495170      0.107612 +- 0.0231217        6      good
chromium@495172      0.101334 +- 0.0227634        6      good
chromium@495173      1.5854 +- 0.546821           6      bad       <--
chromium@495174      1.79111 +- 0.391282          6      bad
chromium@495178      1.73388 +- 0.708936          6      bad
chromium@495195      1.7476 +- 0.802506           6      bad
chromium@495262      1.90761 +- 0.97705           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 --story-filter=browse.news.flipboard system_health.common_desktop

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8970284893350982736


For feedback, file a bug with component Speed>Bisection