On Sun, 30 Mar 2003, Dag-Erling Smørgrav wrote: > Lukas Ertl <[EMAIL PROTECTED]> writes: > > 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). > > Does the data sheet for your disk indicate that it can in fact write > much faster than that?
Well, the HP/Compaq webpages are full of marketing speech wrt that, but since these disks are U320 disks, they should perform better I think. > The speed at which data is actually written to the media is much lower > than the bus speed - the bus speed *has* to be higher to accomodate > multiple devices. Ok, that's reasonable. best regards, le -- Lukas Ertl eMail: [EMAIL PROTECTED] UNIX-Systemadministrator Tel.: (+43 1) 4277-14073 Zentraler Informatikdienst (ZID) Fax.: (+43 1) 4277-9140 der Universität Wien http://mailbox.univie.ac.at/~le/ _______________________________________________ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "[EMAIL PROTECTED]"
