All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=750794

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=e23845f237f180a1ce956b66f2ed0dd0761786bb9f00fe14266a9604df365c07


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

android-nexus5
android-webview-nexus6

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8972526675422436352

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

Suspected Commit
  Author : perryuwang
  Commit : 82496fc9f112ba27d007630b91902814d1b24a90
  Date   : Sat Jul 15 01:59:59 2017
  Subject: Update GpuPreferences when running GPU thread inside browser process.

Bisect Details
  Configuration: android_webview_nexus6_aosp_perf_bisect
  Benchmark    : thread_times.key_silk_cases
  Metric       : thread_GPU_cpu_time_per_frame/infinite_scrolling.html
  Change       : 12.35% | 2.1730522648 -> 2.44145654434

Revision             Result                    N
chromium@486073      2.17305 +- 0.166012       6      good
chromium@486942      2.10279 +- 0.22537        6      good
chromium@486956      2.10105 +- 0.197832       6      good
chromium@486960      2.08778 +- 0.0513451      6      good
chromium@486962      2.10876 +- 0.127124       6      good
chromium@486963      2.38386 +- 0.0844972      6      bad       <--
chromium@486970      2.40619 +- 0.207949       6      bad
chromium@486997      2.38975 +- 0.167578       6      bad
chromium@487051      2.43426 +- 0.184559       6      bad
chromium@487160      2.36339 +- 0.154966       6      bad
chromium@487377      2.42365 +- 0.169519       6      bad
chromium@487811      2.44146 +- 0.127299       6      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=android-webview --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=infinite.scrolling.html thread_times.key_silk_cases

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8972526675422436352


For feedback, file a bug with component Speed>Bisection