All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=799630

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=5c82dac6a610465ad3e5cd7e9e33b1fff768026b422b356a77ca0968d856fc4b


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

android-nexus5
android-nexus5X
android-nexus6
android-nexus7v2
android-webview-nexus5X
android-webview-nexus6

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8958197226040312784

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

Suspected Commit
  Author : George Burgess IV
  Commit : 274d75742451914f74bbad40c405da7f902dd232
  Date   : Wed Jan 03 23:22:46 2018
  Subject: Turn on AFDO for Chromium on Android

Bisect Details
  Configuration: android_nexus7_perf_bisect
  Benchmark    : thread_times.tough_scrolling_cases
  Metric       : thread_raster_cpu_time_per_frame/canvas_15000_pixels_per_second
  Change       : 15.20% | 2.35370238856 -> 2.71155141512

Revision             Result                    N
chromium@526662      2.3537 +- 0.108535        6      good
chromium@526818      2.33081 +- 0.080905       6      good
chromium@526857      2.33198 +- 0.0787534      6      good
chromium@526858      2.67388 +- 0.0485809      6      bad       <--
chromium@526859      2.6578 +- 0.0471432       6      bad
chromium@526860      2.71616 +- 0.172029       6      bad
chromium@526862      2.7004 +- 0.0741899       6      bad
chromium@526867      2.66456 +- 0.0735583      6      bad
chromium@526877      2.6836 +- 0.113013        6      bad
chromium@526896      2.67689 +- 0.0803952      6      bad
chromium@526974      2.71155 +- 0.192203       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=canvas.15000.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/8958197226040312784


For feedback, file a bug with component Speed>Bisection