[NEW PORT]: benchmarks/linux-vdbench: Command line disk I/O benchmark utility
Vdbench is a command line utility specifically created to help
engineers and customers generate disk I/O workloads to be used
for validating storage performance and storage data integrity.
WWW: http://www.oracle.com/technetwork/server-storage/vdbench-downloads-1901681.html
Reviewed by: koobs, mat
Approved by: koobs (mentor)
Differential Revision: https://reviews.freebsd.org/D17255