Zopkio is a test framework built to support at scale performance and
functional testing.

WWW: https://github.com/linkedin/Zopkio

Reviewed by: mat, koobs, Python
Requested by: gnn (AsiaBSDCon)
Tested by: gnn (earlier version)
Sponsored by: gandi.net
Differential Revision: https://reviews.freebsd.org/D5670