[~] 
kmd@venus $ ubench ;sync;sleep 3;sync;ubench -s
Unix Benchmark Utility v.0.3
Copyright (C) July, 1999 PhysTech, Inc.
Author: Sergei Viznyuk <sv@phystech.com>
http://www.phystech.com/download/ubench.html
FreeBSD 11.0-RELEASE-p2 FreeBSD 11.0-RELEASE-p2 #0: Mon Oct 24 06:55:27 UTC 2016     root@amd64-builder.daemonology.net:/usr/obj/usr/src/sys/GENERIC amd64
Ubench CPU:  1404753
Ubench MEM:  1262689
--------------------
Ubench AVG:  1333721
Unix Benchmark Utility v.0.3
Copyright (C) July, 1999 PhysTech, Inc.
Author: Sergei Viznyuk <sv@phystech.com>
http://www.phystech.com/download/ubench.html
FreeBSD 11.0-RELEASE-p2 FreeBSD 11.0-RELEASE-p2 #0: Mon Oct 24 06:55:27 UTC 2016     root@amd64-builder.daemonology.net:/usr/obj/usr/src/sys/GENERIC amd64
Ubench Single CPU:   512692 (0.41s)
Ubench Single MEM:   909464 (0.40s)
-----------------------------------
Ubench Single AVG:   711078