[rescue] SBUS expansion box

Gregory Leblanc rescue at sunhelp.org
Wed Nov 21 14:55:23 CST 2001


On Wed, 2001-11-21 at 12:19, Brian Hechinger wrote:
> > I've seen some pretty high performance scsi linux systems, but they were all 
> > lintel systems. 
> 
> blech. :)

Yeah, whatever.  :-)

> > For this idea (still hankering for a new file server to replace the p75), I was
> > thinking NetBSD.
> 
> good thinking.

Agreed, though NetBSD's SMP isn't something that I trust yet.

> > But, I hear that linux offers decent support for SMP on Sparc, and was 
> > considering getting a SS10 SMP box to use for a DMZ.
> 
> stick with NetBSD, SMP is there, and will be far better than that which linux
> uses i'm sure. (especially if it's the same SMP as linux does with x86, the
> machines we had were faster single proc since linux spent so much time doing
> context switches with two CPUs)

When was this, Linux 2.0?  SMP support in the 2.4.x kernel series is
quite good for <= 4 processors.  I ran it on a dual processor SS20 (with
the 2.2 tree, which wasn't nearly as good), and it had quite good CPU
performance (sucky disk though).  I'm running 2.4 on a dual processor
AMD machine as my main desktop, and it performs quite a bit better than
with the single proc kernel installed.  

> > BTW, in case anyone ever thinks of trying out NetBSD on a low disk space 
> > machine (ie, sub gig machines), I'm sure it works, but I keep having trouble 
> > over filling the disk while I try to get software onto it.  Probably better to
> > have a good size disk until you figure out what you are doing.
> 
> NetBSD will fit very easily onto a 200M disk.  i've done it multiple times.
> what sort of software are you trying to add that's taking up so much space?

Heck, I can install a fully working Red Hat Linux system in 200MB.  My
current NetBSD install is a lot less than that, though it doesn't do any
real work.
	Greg





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