All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=766549

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=d0c21d106b4bbf5b4357a239019a2271278d871b7c1deb7ed3f8dc8f93314cc2


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

android-nexus7v2

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8968030769921383600

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

Bisect Details
  Configuration: android_nexus7_perf_bisect
  Benchmark    : smoothness.sync_scroll.key_mobile_sites_smooth
  Metric       : mean_input_event_latency/https___www.google.co.uk_search?hl_en_q_barack+obama_cad_h

Revision             Result                  N
chromium@501863      207.466 +- 546.547      21      good
chromium@501943      192.559 +- 416.786      21      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=https...www.google.co.uk.search.hl.en.q.barack.obama.cad.h smoothness.sync_scroll.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/8968030769921383600


For feedback, file a bug with component Speed>Bisection

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8968017984516621712

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

Suspected Commit
  Author : Timothy Loh
  Commit : e1ef417340c9ebfe3613c90b636f74f96c9efc4b
  Date   : Thu Sep 14 03:31:59 2017
  Subject: Enable modal permission prompts on android

Bisect Details
  Configuration: android_nexus7_perf_bisect
  Benchmark    : smoothness.sync_scroll.key_mobile_sites_smooth
  Metric       : mean_input_event_latency/https___www.google.co.uk_search?hl_en_q_barack+obama_cad_h
  Change       : 437.77% | 31.6971666667 -> 170.457333333

Revision             Result                  N
chromium@500000      31.6972 +- 23.1108      6      good
chromium@501000      37.3387 +- 17.1209      6      good
chromium@501500      30.5807 +- 3.41122      6      good
chromium@501750      38.6417 +- 19.764       6      good
chromium@501813      32.217 +- 11.123        6      good
chromium@501844      35.1407 +- 16.7969      6      good
chromium@501852      33.549 +- 14.7008       6      good
chromium@501856      33.6643 +- 12.39        6      good
chromium@501858      35.084 +- 17.195        6      good
chromium@501859      207.189 +- 139.108      6      bad       <--
chromium@501860      232.426 +- 142.206      6      bad
chromium@501875      214.29 +- 206.8         6      bad
chromium@502000      170.457 +- 226.871      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=https...www.google.co.uk.search.hl.en.q.barack.obama.cad.h smoothness.sync_scroll.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/8968017984516621712


For feedback, file a bug with component Speed>Bisection