All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=846342

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=4ce64933dc04356ba83f7684cb5615c7f6921d72af1659fb372dcbd37c9147bc


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

health-plan-clankium-low-end-phone
perf-go-phone-512

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8945633787900172576

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

Suspected Commit
  Author : yiyix
  Commit : 6a4ede3e8b19101ba5b1735e0a2178b9541a21a3
  Date   : Mon May 14 10:38:30 2018
  Subject: Fix Regression: Black patch is seen while opening new page

Bisect Details
  Configuration: clankium-low-end-phone-perf-bisect
  Benchmark    : power.typical_10_mobile
  Metric       : application_energy_consumption_mwh/application_energy_consumption_mwh
  Change       : 40.57% | 0.279376887879 -> 0.392719389394

Revision                                       Result                      N
android-chrome@ce43a34f03                      0.279377 +- 0.00528606      6      good
android-chrome@4426288b2b                      0.278001 +- 0.00351002      6      good
android-chrome@4426288b2b,chromium@558065      0.283287 +- 0.00218909      6      good
android-chrome@4426288b2b,chromium@558164      0.281204 +- 0.00529368      6      good
android-chrome@4426288b2b,chromium@558213      0.282437 +- 0.00437476      6      good
android-chrome@4426288b2b,chromium@558238      0.279809 +- 0.00473856      6      good
android-chrome@4426288b2b,chromium@558250      0.282054 +- 0.001646        6      good
android-chrome@4426288b2b,chromium@558252      0.280291 +- 0.00313609      7      good
android-chrome@4426288b2b,chromium@558253      0.392899 +- 0.00490879      6      bad       <--
android-chrome@4426288b2b,chromium@558256      0.393439 +- 0.0043128       6      bad
android-chrome@4426288b2b,chromium@558262      0.394359 +- 0.00158378      6      bad
android-chrome@dda312c828                      0.392719 +- 0.00458995      6      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=android-chrome --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests power.typical_10_mobile

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8945633787900172576


For feedback, file a bug with component Speed>Bisection