All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=763391

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=fe3cdcaa0327441831fd9e2caa672f8980f52dd543bab9b3b93c8b9390de31de


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

chromium-rel-mac11-air

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8969008241481680304

=== 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_air_perf_bisect
  Benchmark    : system_health.common_desktop
  Metric       : mousewheel_response:energy_sum/browse_news/browse_news_reddit
  Change       : 361.79% | 0.441551837821 -> 2.03904388859

Revision             Result                     N
chromium@493971      0.441552 +- 1.44609        6      good
chromium@494735      0.172586 +- 0.0214031      6      good
chromium@495117      0.171822 +- 0.0283014      5      good
chromium@495165      0.197653 +- 0.145755       7      good
chromium@495171      0.173976 +- 0.0111342      8      good
chromium@495172      0.171731 +- 0.0212257      6      good
chromium@495173      2.53478 +- 2.26238         5      bad       <--
chromium@495174      1.72201 +- 0.54296         5      bad
chromium@495177      1.98651 +- 0.222213        5      bad
chromium@495189      1.89599 +- 0.51545         6      bad
chromium@495213      1.93402 +- 0.747771        7      bad
chromium@495308      2.48537 +- 4.02807         7      bad
chromium@495499      2.03904 +- 0.4424          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.reddit 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/8969008241481680304


For feedback, file a bug with component Speed>Bisection