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Date:      Mon, 28 Jul 1997 12:00:45 +0200
From:      Ollivier Robert <roberto@keltia.freenix.fr>
To:        freebsd-hackers@FreeBSD.ORG
Subject:   Re: SMP?
Message-ID:  <19970728120045.44434@keltia.freenix.fr>
In-Reply-To: <Pine.BSF.3.96.970728050548.15323C-100000@server.local.sunyit.edu>; from Alfred Perlstein on Mon, Jul 28, 1997 at 05:29:23AM %2B0000
References:  <33DC5875.167EB0E7@dorotech.fr> <Pine.BSF.3.96.970728050548.15323C-100000@server.local.sunyit.edu>

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[ don't forget there is a freebsd-smp list ]

According to Alfred Perlstein:
>   I have a couple of questions about SMP, what boards do i have to watch
> out for, not working? will the SMP kernel work with cyrix/AMD chips?

See <URL:http://www.freebsd.org/~fsmp/SMP/SMP.html>; for details.

It won't work on Cyrix/AMD processors because they don't use the same APIC
as Intel. There is a document about OpenPIC for these processors but only
the AMD 640 chipset implement it (to my knowledge).
 
For now, SMP == Intel.

> is it worth it?  The thing is I just read that dual pentiums are nothing
> compared to dual pentium pros, is this true (especially running at 150mhz)

You should be able to run your P150 at 2.5x 66 MHz (== 166 MHz) without
problem. 
-- 
Ollivier ROBERT -=- FreeBSD: There are no limits -=- roberto@keltia.freenix.fr
FreeBSD keltia.freenix.fr 3.0-CURRENT #23: Sun Jul 20 18:10:34 CEST 1997



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