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Date:      Tue, 20 May 1997 01:39:05 +0200
From:      sthaug@nethelp.no
To:        rcarter@consys.com
Cc:        hutton@isi.edu, hackers@FreeBSD.ORG
Subject:   Re: throughtput measurements for fast ethernet
Message-ID:  <12630.864085145@verdi.nethelp.no>
In-Reply-To: Your message of "Mon, 19 May 1997 16:23:02 -0700"
References:  <3380E0D6.EB2A5EC7@consys.com>

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> > I doubt motherboards are the issue here. I've measured 79 Mbps between
> > two P133s (430FX chipset), using SMC (21140 based) cards. This was done
> > more than a year ago, and the results are in the Netperf database. I got
> > the same figures with ttcp.
> 
> Well, it does matter.  These had pipelined burst SRAM, right?  Anything
> with async SRAM will run around 45Mbits/s with 21140 cards.  The
> same CPU with PB-SRAM agrees with what you report.

Good point. Yes, these systems had pipelined burst cache.

Steinar Haug, Nethelp consulting, sthaug@nethelp.no



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