Date: Wed, 15 Oct 1997 09:58:58 -0600 (MDT) From: Nate Williams <nate@mt.sri.com> To: Mike Smith <mike@smith.net.au> Cc: Adept <adept@cep.yale.edu>, Brian Somers <brian@awfulhak.org>, William Bulley <web@merit.edu>, freebsd-mobile@freebsd.org Subject: Re: 3C589 performance (was Re: obtaining 3COM 3C589C PC-CARDs ) Message-ID: <199710151558.JAA11838@rocky.mt.sri.com> In-Reply-To: <199710151304.WAA00569@word.smith.net.au> References: <Pine.LNX.3.96.971015053438.8244F-100000@www.cep.yale.edu> <199710151304.WAA00569@word.smith.net.au>
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[ 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. (I have gotten speeds of 850K/sec on our lightly loaded SRI-MT network though...) Nate
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