From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <0fc2241c2b25c99ada1b1bf57e3fefbc@plan9.bell-labs.com>
Date: Mon, 14 Jun 2004 15:57:46 -0400
From: jmk@plan9.bell-labs.com
To: 9fans@cse.psu.edu
Subject: Re: [9fans] Recommended motherboards?
In-Reply-To: <Pine.LNX.4.44.0406141326400.2123-100000@maxroach.lanl.gov>
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On Mon Jun 14 15:27:16 EDT 2004, rminnich@lanl.gov wrote:
> On Mon, 14 Jun 2004, andrey mirtchovski wrote:
> 
> > You're running the Opteron in 32-bit mode, right?  I can (temporarily)
> > lay my hands on a couple of Sun V20z Opteron systems and a few HP DL145
> > boxes, but using them in legacy mode doesn't sound like fun.
> 
> for future, try to get Tyan boards with the eepro. Coming soon.
> 
> ron

As well as the 2 tg3 GbE interfaces, the S2882 has a 10/100 eepro on it
(Intel 82557 in our world). Interestingly, they decided to add that and
disable the AMD 10/100 contained in the south bridge. There is also a
cheaper Tyan board (S2875) that has an Intel GbE on-board rather than the
2 Broadcom 5704s (tg3).

Yes, running in 32-bit mode, 2 CPUs:

	ella% pwd
	/usr/jmk/9/pc
	ethel% mk clean>/dev/null
	ella% time mk>/dev/null
	2.29u 1.61s 6.52r 	 mk
	ella% cat '#P'/cputype
	Opteron 1791
	ella% 

while on the 2 CPU + hyperthreading P4:

	ethel% pwd
	/usr/jmk/9/pc
	ethel% mk clean>/dev/null
	ethel% time mk>/dev/null
	5.00u 6.02s 7.11r 	 mk
	ethel% cat '#P/cputype'
	P4 2197
	ethel% 

The P4 is on a GbE link to the fileserver, the Opteron is 100Mbs.