Date: Wed, 15 Oct 1997 18:00:45 -0600 (MDT) From: Nate Williams <nate@mt.sri.com> To: Mike Smith <mike@smith.net.au> Cc: Nate Williams <nate@mt.sri.com>, 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: <199710160000.SAA14841@rocky.mt.sri.com> In-Reply-To: <199710152346.JAA02289@word.smith.net.au> References: <199710151558.JAA11838@rocky.mt.sri.com> <199710152346.JAA02289@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. > > Is that inbound or outbound? Inbound I see similar figures, it's > outbound that the problems arise. Both ways. Nate
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