All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=762294

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=877690205ba2278f755b36fd5a0ae42d2deda48a2a569888ad00185d7311e86f


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

chromium-rel-mac-retina

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8969252453323423488

=== BISECT JOB RESULTS ===
NO Perf regression found

Bisect Details
  Configuration: mac_retina_perf_bisect
  Benchmark    : loading.desktop
  Metric       : timeToFirstContentfulPaint_avg/pcv1-warm/FDA

Revision             Result                  N
chromium@499342      376.163 +- 19.4715      21      good
chromium@499386      376.942 +- 24.958       21      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=FDA loading.desktop

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8969252453323423488


For feedback, file a bug with component Speed>Bisection

This recovered.