Date: Tue, 07 Nov 2000 16:23:12 -0800 From: Randy Bush <randy@psg.com> To: "Richard A. Steenbergen" <ras@e-gerbil.net> Cc: freebsd-net@freebsd.org, Vern Paxson <vern@aciri.org> Subject: Re: tcp sendspace/recvspace Message-ID: <E13tJ1E-0000FY-00@rip.psg.com> References: <200011052257.OAA24410@implode.root.com> <Pine.BSF.4.21.0011071709390.306-100000@overlord.e-gerbil.net>
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vern said i was welcome to copy this to the list To: Randy Bush <randy@psg.com> Cc: Allison Mankin <mankin@isi.edu>, Scott Bradner <sob@harvard.edu> Subject: Re: tcp sendspace/recvspace Date: Mon, 06 Nov 2000 00:40:29 PST From: Vern Paxson <vern@ee.lbl.gov> I hope they do indeed pursue autotuning, I think it's a nifty solution to the general problem of finding the right window size. One effect I've noticed locally is that cranking the window size to a value like 32 KB can (1) help a lot with getting nearer to 100 Mbps performance on a fast LAN, but (2) can lead to throughput *degradation*, apparently due to the Ethernet capture effect. So I hope they assess the performance implications of the increase carefully, in a number of different operating regimes. Vern To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message
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