All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=798339

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=fa138d622fcb50c129803768bdc4951aa655e65793aee37f4ff65f6c35e94b15


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

android-nexus5X

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8958517558440620960

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

Suspected Commit
  Author : James Wallace-Lee
  Commit : aefa586e7c8a20173fac5a4b8dfa301f8460e852
  Date   : Thu Dec 21 16:40:07 2017
  Subject: cc: don't ProcessScheduledActions inside BeginImplFrame

Bisect Details
  Configuration: android_nexus5X_perf_bisect
  Benchmark    : thread_times.key_mobile_sites_smooth
  Metric       : thread_raster_cpu_time_per_frame/http___slashdot.org_
  Change       : 4.13% | 0.579216463315 -> 0.60311574516

Revision             Result                      N
chromium@525698      0.579216 +- 0.029168        6      good
chromium@525711      0.577314 +- 0.0141888       6      good
chromium@525712      0.579613 +- 0.0132172       6      good
chromium@525713      0.598889 +- 0.0161077       6      bad       <--
chromium@525714      0.604653 +- 0.0173633       6      bad
chromium@525717      0.606117 +- 0.014354        6      bad
chromium@525723      0.608235 +- 0.0180946       6      bad
chromium@525748      0.602888 +- 0.0179995       9      bad
chromium@525797      0.603116 +- 0.00593115      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...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/8958517558440620960


For feedback, file a bug with component Speed>Bisection