Subject: Re: Slow Xeon Performance
To: Bryan Vyhmeister <bsd@hub3.net>
From: Manuel Bouyer <bouyer@antioche.eu.org>
List: port-i386
Date: 09/03/2003 22:51:06
On Thu, Aug 28, 2003 at 07:01:20PM -0700, Bryan Vyhmeister wrote:
> [...]
> 
> wd0: drive supports 16-sector PIO transfers, LBA48 addressing
> wd0: 186 GB, 16383 cyl, 16 head, 63 sec, 512 bytes/sect x 390721968
> sectors
> wd0: 32-bit data port
> wd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 5 (Ultra/100)
> pciide0: primary channel interrupting at irq 14
> wd0(pciide0:0:0): using PIO mode 4, DMA mode 2, Ultra-DMA mode 2
> (Ultra/33) (using DMA data transfers)
> 
> This seems to indicate that wd0 is operating at Ultra/33 speeds instead
> of Ultra/100 speeds. Is this because of the ServerWorks GC-SL chipset? I
> seem to remember running across something about this but I do not know
> where. Any ideas?

Probably the kernel doesn't know (enouth) about the GC-SL IDE controller.

-- 
Manuel Bouyer <bouyer@antioche.eu.org>
     NetBSD: 24 ans d'experience feront toujours la difference
--