I've rewritten iostat to read Jason Thorpe's new statistics compiled by
subr_disk.c

Some of the properties of my iostat are evil as the BSD iostat was evil,
namely the dynamic allocation of a handfull of arrays.

While this could be rectified, I'm more interested at present in the 
general utility of iostat and the functionality of the -C, -d, -D, and
-T flags.  So please try out the utility and pick over my code and man
page.

ftp://resort.com/pub/netbsd/iostat.tar.gz

-john