All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=762179

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=ecf42c042aa31520a1121da3b69cfe6a9ebee43755362964ad24ec593ea59f3a


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

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

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8969257408241001472

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

Suspected Commit
  Author : Sunny Sachanandani
  Commit : c7a7949c958b4867600ca716968da430fd9b952f
  Date   : Wed Aug 30 22:21:33 2017
  Subject: cc: Flush command buffers when all tiles are done.

Bisect Details
  Configuration: android_webview_arm64_aosp_perf_bisect
  Benchmark    : smoothness.key_mobile_sites_smooth
  Metric       : frame_times/http___m.youtube.com_watch?v_9hBpF_Zj4OA
  Change       : 14.31% | 16.6299964573 -> 19.0096782557

Revision             Result                   N
chromium@498451      16.63 +- 0.727384        6      good
chromium@498633      16.9619 +- 0.728194      6      good
chromium@498639      17.1893 +- 0.746185      6      good
chromium@498640      18.9615 +- 0.546514      6      bad       <--
chromium@498641      19.7473 +- 1.12362       6      bad
chromium@498642      19.0712 +- 1.49199       6      bad
chromium@498645      19.0577 +- 2.91472       9      bad
chromium@498656      19.3298 +- 0.543829      6      bad
chromium@498679      19.4294 +- 0.834118      6      bad
chromium@498724      19.562 +- 1.22452        6      bad
chromium@498815      19.0097 +- 1.79189       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=http...m.youtube.com.watch.v.9hBpF.Zj4OA smoothness.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/8969257408241001472


For feedback, file a bug with component Speed>Bisection