All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=762188

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=424b63d03ae88f18a2066977e0e91478a7102de4c52b3cf30a44d7b55e77bb45


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

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

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8969257049620897488

=== 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_silk_cases
  Metric       : mean_frame_time/http___groupcloned.com_test_plain_sticky-using-webkit-backface-visibility.html
  Change       : 6.46% | 16.6433333333 -> 17.719

Revision             Result                   N
chromium@498451      16.6433 +- 0.222588      6      good
chromium@498633      16.6115 +- 0.213779      6      good
chromium@498639      16.664 +- 0.287413       6      good
chromium@498640      17.5802 +- 0.13732       6      bad       <--
chromium@498641      17.6498 +- 0.268382      6      bad
chromium@498642      17.6628 +- 0.15423       5      bad
chromium@498645      17.5877 +- 0.3269        6      bad
chromium@498656      17.6935 +- 0.250778      6      bad
chromium@498679      17.6658 +- 0.171484      6      bad
chromium@498724      17.6882 +- 0.267123      6      bad
chromium@498815      17.719 +- 0.208087       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...groupcloned.com.test.plain.sticky.using.webkit.backface.visibility.html smoothness.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/8969257049620897488


For feedback, file a bug with component Speed>Bisection