All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=777792

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=60f79587f0f40f207bd051d2347320fcec0d65d4d74cf2e780c7587a1224e968


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

android-one

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8964861540933336640

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

Suspected Commit
  Author : Hajime Hoshi
  Commit : 1b8485c6d66e754d5fd729d636e5d1c50a261e21
  Date   : Tue Oct 17 09:52:33 2017
  Subject: Revert "Revert "Add RendererSchedulerImpl::V8TaskQueue()""

Bisect Details
  Configuration: android_one_perf_bisect
  Benchmark    : smoothness.sync_scroll.key_mobile_sites_smooth
  Metric       : frame_times/http___www.theverge.com_2012_10_28_3568746_amazon-7-inch-fire-hd-ipad-mini-ad-ballsy
  Change       : 5.36% | 18.4453346597 -> 19.4335778791

Revision             Result                   N
chromium@509279      18.4453 +- 0.510356      6      good
chromium@509317      18.4653 +- 0.242724      6      good
chromium@509336      18.4363 +- 0.212911      6      good
chromium@509338      18.521 +- 0.546578       6      good
chromium@509339      19.3626 +- 0.839075      6      bad       <--
chromium@509341      19.2284 +- 0.42223       6      bad
chromium@509345      19.4266 +- 0.557608      6      bad
chromium@509354      19.4336 +- 0.323136      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=http...www.theverge.com.2012.10.28.3568746.amazon.7.inch.fire.hd.ipad.mini.ad.ballsy 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/8964861540933336640


For feedback, file a bug with component Speed>Bisection