From owner-freebsd-hackers Mon May 19 16:39:14 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.5/8.8.5) id QAA26228 for hackers-outgoing; Mon, 19 May 1997 16:39:14 -0700 (PDT) Received: from verdi.nethelp.no (verdi.nethelp.no [195.1.171.130]) by hub.freebsd.org (8.8.5/8.8.5) with SMTP id QAA26223 for ; Mon, 19 May 1997 16:39:09 -0700 (PDT) From: sthaug@nethelp.no Received: (qmail 12632 invoked by uid 1001); 19 May 1997 23:39:05 +0000 (GMT) To: rcarter@consys.com Cc: hutton@isi.edu, hackers@FreeBSD.ORG Subject: Re: throughtput measurements for fast ethernet In-Reply-To: Your message of "Mon, 19 May 1997 16:23:02 -0700" References: <3380E0D6.EB2A5EC7@consys.com> X-Mailer: Mew version 1.05+ on Emacs 19.28.2 Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Date: Tue, 20 May 1997 01:39:05 +0200 Message-ID: <12630.864085145@verdi.nethelp.no> Sender: owner-hackers@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk > > 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