vinum performance

[Lukas Ertl]

On Sun, 30 Mar 2003, Dag-Erling Smørgrav wrote:

> What would be interesting though would be to compare Vinum with ATA RAID
> (see the 'create' command in the atacontrol man page)

Since this is a SCSI-only system I can't test ATA raid. :-)

I'm currently testing with prime stripe sizes, but it doesn't seem to
help. I additionally added "options AHC_ALLOW_MEMIO" to the kernel, and it
has raised write performance in the single-disk case (although I'm not
happy with that one either; I expected a disk on a U160 controller to pump
out more than ~65MB/s).

regards,
le

-- 
Lukas Ertl                             eMail: l.ertl at univie.ac.at
UNIX-Systemadministrator               Tel.:  (+43 1) 4277-14073
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der Universität Wien                   http://mailbox.univie.ac.at/~le/