All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=777403

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=ec00d532c4d8d8968ad534763b65874fa9513604915565e6ed804713ac0dbfc2


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

chromium-rel-mac11

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8964938998257333184

=== 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: mac_10_11_perf_bisect
  Benchmark    : battor.steady_state
  Metric       : cpu_time_percentage_avg/http___www.indiatimes.com
  Change       : 5.90% | 0.11360488113 -> 0.120301954665

Revision             Result                      N
chromium@509727      0.113605 +- 0.00165205      6      good
chromium@509729      0.11444 +- 0.00302258       6      good
chromium@509730      0.119412 +- 0.00304715      6      bad       <--
chromium@509733      0.120459 +- 0.00256547      6      bad
chromium@509739      0.12009 +- 0.00474559       6      bad
chromium@509751      0.120122 +- 0.00465498      6      bad
chromium@509775      0.120302 +- 0.00188488      6      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=release --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=http...www.indiatimes.com battor.steady_state

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8964938998257333184


For feedback, file a bug with component Speed>Bisection