All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=758967

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=4a230c342d10686b8ba7da100dd897c9ed8557056b5c7485a6777f9bf0aceda6


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

android-nexus7v2

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8970286072274978032

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

Suspected Commit
  Author : Brian White
  Commit : 7662ff8cb53121cd4d8916007d430b36efd45895
  Date   : Thu Aug 24 00:03:13 2017
  Subject: Validate histograms before and after each task on Android.

Bisect Details
  Configuration: android_nexus7_perf_bisect
  Benchmark    : thread_times.tough_scrolling_cases
  Metric       : thread_total_all_cpu_time_per_frame/text_hover_30000_pixels_per_second
  Change       : 62.77% | 93.2885205102 -> 151.843909307

Revision             Result                  N
chromium@496047      93.2885 +- 12.0056      6      good
chromium@496499      96.8006 +- 5.26149      6      good
chromium@496725      96.9453 +- 5.89958      6      good
chromium@496838      95.7041 +- 10.237       6      good
chromium@496866      94.7435 +- 5.48093      6      good
chromium@496873      97.186 +- 5.49978       6      good
chromium@496877      97.4042 +- 5.66786      6      good
chromium@496878      148.802 +- 9.63673      6      bad       <--
chromium@496879      149.308 +- 16.3494      6      bad
chromium@496880      145.496 +- 17.9388      6      bad
chromium@496894      147.115 +- 11.1629      6      bad
chromium@496950      151.844 +- 8.92155      6      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=text.hover.30000.pixels.per.second 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/8970286072274978032


For feedback, file a bug with component Speed>Bisection