All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=776761

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=debc8cdd0b35f3558e896a1cfbcc816b95ff3e3a659541df56a865f48648f324


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/8965206288591698832

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

Suspected Commit
  Author : Kunihiko Sakamoto
  Commit : 07ec68095dc07849019a7362ba6cc67625c95c0b
  Date   : Wed Oct 18 10:35:41 2017
  Subject: Simplify CSSFontFaceSource a bit

Bisect Details
  Configuration: android_nexus5X_perf_bisect
  Benchmark    : system_health.common_mobile
  Metric       : total:500ms_window:renderer_eqt_max/load_news/load_news_nytimes
  Change       : 68.97% | 224.605400756 -> 379.514166667

Revision             Result                  N
chromium@509694      224.605 +- 38.3501      6      good
chromium@509716      218.921 +- 21.6147      6      good
chromium@509727      207.968 +- 29.4301      6      good
chromium@509729      201.955 +- 28.2153      6      good
chromium@509730      384.305 +- 20.8368      6      bad       <--
chromium@509733      378.226 +- 36.326       6      bad
chromium@509738      379.514 +- 23.2483      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=load.news.nytimes system_health.common_mobile

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8965206288591698832


For feedback, file a bug with component Speed>Bisection