Subject: Re: Slow Xeon Performance
To: None <port-i386@netbsd.org>
From: Bryan Vyhmeister <bsd@hub3.net>
List: port-i386
Date: 09/03/2003 16:48:48
> 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.

That is what I figured it must be. I suppose GC-SL chipsets are not as
common as your usual PIIX4 or other extremely common chipsets. Thank you
for your reply.

Bryan