15 Mar
2002
15 Mar
'02
2:09 a.m.
--- Jochen Kunz <jkunz(a)unixag-kl.fh-kl.de> wrote:
On Thu, Mar 14, 2002 at 11:54:31PM -0800, Ethan Dicks
wrote:
Three CPUs on the BI bus? Does that work?
http://mail-index.netbsd.org/tech-smp/2001/05/30/0000.html ...The VAX 8350 system is probably the slowest
multiprocessor system
that NetBSD will ever support; each CPU does about 2VUPS (~2MIPS) :-)
That's rather generous, isn't it? The KA820 is, IIRC, virtually the
same speed as the uVAX-II (0.95 VUPS). I didn't think the KA825 was
twice as fast. I was thinking 35%-50% faster at best.
Ah well... I'd be happy with *one* KA825, let alone two. I doubt I'd
ever need three. I could always test my multiprocessor mods to the
COMBOARD-BI driver (which were only tested in practice by our beta
customers, since we never had a multiprocessor VAX during development).
-ethan
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