All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=792671

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=f009315c825dc2098d23283de1161de3e8f4ce55745041e0bac5dfbe56880f1f


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

android-nexus5

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8960918871476886240

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

Suspected Commit
  Author : Naina Raisinghani
  Commit : b71f5b7df345f1a8603b7cf7b59edf48288e7d96
  Date   : Mon Dec 04 01:01:29 2017
  Subject: Remove calls to styleForLayoutObject() in LayoutTreeBuilder::style()

Bisect Details
  Configuration: android_nexus5_perf_bisect
  Benchmark    : speedometer2
  Metric       : Preact-TodoMVC/Speedometer2
  Change       : 4.34% | 514.853611111 -> 537.174444444

Revision             Result                  N
chromium@521231      514.854 +- 13.7687      6      good
chromium@521239      513.36 +- 6.24345       6      good
chromium@521240      537.997 +- 13.0779      6      bad       <--
chromium@521241      538.015 +- 10.1972      6      bad
chromium@521243      533.939 +- 18.5995      6      bad
chromium@521246      537.174 +- 12.5806      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=Speedometer2 speedometer2

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8960918871476886240


For feedback, file a bug with component Speed>Bisection