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Date: Sun, 30 Mar 2003 16:38:15 +0200 (CEST)
From: Lukas Ertl <l.ertl@univie.ac.at>
To: Dag-Erling =?iso-8859-1?q?Sm=F8rgrav?= <des@ofug.org>
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Subject: Re: vinum performance
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On Sun, 30 Mar 2003, Dag-Erling Sm=F8rgrav 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

--=20
Lukas Ertl                             eMail: l.ertl@univie.ac.at
UNIX-Systemadministrator               Tel.:  (+43 1) 4277-14073
Zentraler Informatikdienst (ZID)       Fax.:  (+43 1) 4277-9140
der Universit=E4t Wien                   http://mailbox.univie.ac.at/~le/