How much memory?

Mark Ovens mark at dogma.freebsd-uk.eu.org
Fri Jun 2 18:53:27 BST 2000


On Fri, Jun 02, 2000 at 10:08:51AM +0100, adam.3.brown at bt.com wrote:
> Thanks for the information everyone, just to let you know I was running 3.4
> on a dual PIII Xeon with 2.25GB RAM (a proliant 6500). Unfortunately this
> was not quite fast enough (I'm doing some network simulations, ns2) so an
> upgrade is needed. It looks like a quad Xeon(expandable to 8 processor)
> PowerEdge 8450 with 4GB RAM to start with.

Can I come and play with it :)

Seriously, I'd be interested in knowing the time it takes to ``make
world'' and a make a GENERIC kernel if you do either. ISTR someone
else here in the UK built a similar machine and could build a 3.x
GENERIC in 28 seconds!!

> If FreeBSD can't handle any more
> than this then I will just go for a cheaper server and save some money as I
> wont be able to expand it anyway.
> 
> Cheers again
> 
> Adam
> 
> -----Original Message-----
> From: Doug Rabson [mailto:dfr at nlsystems.com]
> Sent: 01 June 2000 11:14
> To: Brian Somers
> Cc: paul at xciv.org; freebsd-users at uk.freebsd.org;
> brian at hak.lan.Awfulhak.org
> Subject: Re: How much memory? 
> 
> 
> On Wed, 31 May 2000, Brian Somers wrote:
> 
> > > Memory ISTR a limit of 1GB, but I know that ftp.cdrom.com has 4GB
> > > in it but I'm not sure if that is in a release branch, -current or
> > > some patches floating around.
> > 
> > I believe 4Gb is correct - that caused breakage in BSDi 
> > compatibility....
> 
> Which was fixed soon after. I'm not sure of the #cpu limit but I think
> with the existing SMP model, more than about 4 is a waste of
> time.  FreeBSD 5.0 will have much better SMP support and should scale to
> larger systems.
> 
> -- 
> Doug Rabson				Mail:  dfr at nlsystems.com
> Nonlinear Systems Ltd.			Phone: +44 20 8442 9037
> 
> 
> 
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> 
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-- 
        ...and on the eighth day God created UNIX
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