John Birrell正式引入了DTrace支持，感谢 Cisco 公司的大力支持！

[delphij@charlie] ~> uname -a
FreeBSD charlie.delphij.net 8.0-CURRENT FreeBSD 8.0-CURRENT #33: Sun May 25 18:05:10 PDT 2008 delphij@charlie.delphij.net:/download/obj/data/src/sys/CHARLIE amd64
[delphij@charlie] ~> dtrace -V
dtrace: Sun D 1.6.1