From owner-freebsd-mobile Wed Oct 15 16:51:13 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.7/8.8.7) id QAA19193 for mobile-outgoing; Wed, 15 Oct 1997 16:51:13 -0700 (PDT) (envelope-from owner-freebsd-mobile) Received: from word.smith.net.au (ppp20.portal.net.au [202.12.71.120]) by hub.freebsd.org (8.8.7/8.8.7) with ESMTP id QAA19178 for ; Wed, 15 Oct 1997 16:51:05 -0700 (PDT) (envelope-from mike@word.smith.net.au) Received: from word.smith.net.au (localhost [127.0.0.1]) by word.smith.net.au (8.8.7/8.8.5) with ESMTP id JAA02289; Thu, 16 Oct 1997 09:16:47 +0930 (CST) Message-Id: <199710152346.JAA02289@word.smith.net.au> X-Mailer: exmh version 2.0zeta 7/24/97 To: Nate Williams cc: Mike Smith , Adept , Brian Somers , William Bulley , freebsd-mobile@freebsd.org Subject: Re: 3C589 performance (was Re: obtaining 3COM 3C589C PC-CARDs ) In-reply-to: Your message of "Wed, 15 Oct 1997 09:58:58 CST." <199710151558.JAA11838@rocky.mt.sri.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Thu, 16 Oct 1997 09:16:45 +0930 From: Mike Smith Sender: owner-freebsd-mobile@freebsd.org X-Loop: FreeBSD.org Precedence: bulk > [ Bad throughput on 3c589 cards ] > > > On a silent network, their throughput is fine. Unfortunately, it > > appears that the '589 suffers from similar problems to other 3Com cards > > on networks with other traffic; I see transfers out of this system as > > slow as 50K/sec on a lightly to moderately loaded network. Others have > > reported similar experiences with other cards (3C509, 3C59x, 3C90x). > > Hmm, I use our 3c589 on SRI-MP's *wiped out* network, and get the same > sorts of performances that the Sparc-20's get, which about 500-700K/sec. > Nothing spectacular, but the network is saturated with NFS traffic most > of the time, so collisions are a regular occurance. Is that inbound or outbound? Inbound I see similar figures, it's outbound that the problems arise. mike