Configuring an older server for speed...

[Wojciech Puchar]

>
> I'm not sure that diskd is still preferred for FreeBSD. The three
> cache types: ufs,aufs and diskd are all the same on disk. diskd is ufs
> with extra processes to handle disk access, aufs uses threads instead.

i don't know what is preferred. i know what works.

only ufs and diskd is reliable, ufs is single threaded and blocking, 
diskd=one process for each spool dedicated just for disk I/O