All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=758958

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=0a89a8bf12076f41943d7b85d452d6122233607100a59c9bf9618a15cfe41977


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

android-nexus7v2

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8970286967743691008

=== 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.key_mobile_sites_smooth
  Metric       : thread_other_cpu_time_per_frame/http___slashdot.org_
  Change       : 75.14% | 0.270643744965 -> 0.460946427416

Revision             Result                     N
chromium@496667      0.270644 +- 0.38265        9       good
chromium@496809      0.258829 +- 0.589688       14      good
chromium@496845      0.186448 +- 0.25671        6       good
chromium@496863      0.219285 +- 0.269052       6       good
chromium@496872      0.330259 +- 0.353255       6       good
chromium@496876      0.277151 +- 0.368349       9       good
chromium@496877      0.286042 +- 0.34424        9       good
chromium@496878      0.466009 +- 0.260053       9       bad       <--
chromium@496880      0.513133 +- 0.0289667      6       bad
chromium@496950      0.460946 +- 0.187945       9       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=http...slashdot.org. thread_times.key_mobile_sites_smooth

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8970286967743691008


For feedback, file a bug with component Speed>Bisection