Re: jiffies rollover, uptime etc.

From: Derek Gladding (derek_gladding@altavista.net)
Date: Wed Feb 20 2002 - 12:56:50 EST


On Wednesday 20 February 2002 09:32 am, Mike Fedyk wrote:
> On Wed, Feb 20, 2002 at 02:24:42PM -0300, Rik van Riel wrote:
> > On Wed, 20 Feb 2002, Mike Fedyk wrote:
> > > On Wed, Feb 20, 2002 at 01:36:02PM +0200, Ville Herva wrote:
> > > > asm-ia64/param.h:# define HZ 1024
> > > > asm-x86_64/param.h:#define HZ 100
> > >
> > > What's the difference between these two architectures? Intel
> > > 64bit processor and AMD's upcoming 64bit processor?
> >
> > One is a 64 bit extension to a modern superscalar
> > architecture which has descended from 8 bit machines
> > over the ages.
> >
> > The other is a 3-issue VLIW follow-up to the 2-issue
> > VLIW i860.
>
> Oh, I didn't know that processor was used for more than printers,
> raid controllers, and similar.

IIRC, the i960 is the printer/controller arch, the i860 was the
(alleged) "cray-on-a-chip" number cruncher.

- Derek
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