Date: Fri, 11 Aug 2000 10:33:02 +0200 (CEST) From: Soren Schmidt <sos@freebsd.dk> To: steveo@eircom.net (Steve O'Hara-Smith) Cc: freebsd-stable@freebsd.org, sos@freebsd.org Subject: Re: SiS 5595 - can do UDMA-66. patch for test. Message-ID: <200008110833.KAA53432@freebsd.dk> In-Reply-To: <XFMail.000811103236.steveo@eircom.net> from "Steve O'Hara-Smith" at "Aug 11, 2000 10:32:36 am"
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It seems Steve O'Hara-Smith wrote: > Hi, > > I have a box with a SiS 5595 which is recognised as a 5591. As far as I > can tell the only difference is that 5595 does UDMA66. The (very simple) > patch below trys for UDMA66 on a 5591 and (with mine at least) gets it (the > improvement is not subtle). The patch is against -stable a while ago, I've been > soaking it ever since. Erhm, since you dont program the chip differently you hardly get UDMA66 speeds, just the mode :) A simple test is to verify the interface speed by doing fx: dd if=/dev/adN of=/dev/null bs=1m count=1 iseek=0 on an unmounted disk (the bs should be within the disk cacke size) This 2-3 times in a row should give an idea of the interface speed... -Søren To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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