All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=770446

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=1ffdeadad89148193823951c707709eabae57a4953a3bcb72b5202ba34f7a608


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

chromium-rel-mac-retina

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8967046956540599520

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

Bisect Details
  Configuration: mac_retina_perf_bisect
  Benchmark    : loading.desktop
  Metric       : timeToFirstMeaningfulPaint_avg/warm/Economist

Revision             Result                  N
chromium@504971      264.179 +- 366.456      21      good
chromium@505069      250.989 +- 302.532      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=Economist loading.desktop

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8967046956540599520


For feedback, file a bug with component Speed>Bisection