Using the RAW I/O enhancements

[Corey Thompson <corey@xxxxxxxxx>]

(Forgive my newbiness to Raw I/O...)
>From the FAQ:
"How do I use the RAW I/O Enhancements?
First, you must enable the raw disk I/O enhancements with the CONFIG_RAW
parameter, second, you must create the special device nodes for the
character special disk devices, preserving the major/minor number
relationship between the block and character special devices. "
I have compiled a 2.2.13 kernel patched with the sgi+straw patch applied.  I
am able to do a ls on /dev/raw.  My question is "now what?"  How do I map
the devices so I can get the raw i/o speeds?
Thanks!

--
Corey Thompson