Date: Sat, 4 Mar 2000 21:30:43 +0100 (CET) From: Andrzej Bialecki <abial@webgiro.com> To: Paul Robinson <wigstah@akitanet.co.uk> Cc: hackers@freebsd.org Subject: Re: Tuning TCP/IP Performance Message-ID: <Pine.BSF.4.20.0003042128320.77588-100000@mx.webgiro.com> In-Reply-To: <Pine.BSF.4.10.10003042016240.22659-100000@elwood.akitanet.co.uk>
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On Sat, 4 Mar 2000, Paul Robinson wrote: > Hi, > > I've been trying to get TCP/IP performance as fast as possible by playing > around with sysctl (playing in the net.inet area) and so on, and was > wondering if there were any comprehensive resources on this that I've > missed. Whenever I do a sysctl -d -a to get a list of descriptions, I get > the following on 3.2-RELEASE: > > sysctl: sysctl name -1 1024 2: No such file or directory Retrieval of descriptions is not implemented yet. I'm afraid you'll need to resort to grepping through the source... > > Any idea as to what's going on here? > > Also, I seem to remember hearing about a method used on SunOS to send the > first four bytes of the data payload back with the SYN ACK which gives the > appearance of improved performance on benchmarks. Does anybody know as to > whether this is possible under any version of FreeBSD? I'll move to 4.0 if > I have to. :) There was a recent discussion (about a month ago) on -current about delayed ACKs. It's in the archives. Andrzej Bialecki // <abial@webgiro.com> WebGiro AB, Sweden (http://www.webgiro.com) // ------------------------------------------------------------------- // ------ FreeBSD: The Power to Serve. http://www.freebsd.org -------- // --- Small & Embedded FreeBSD: http://www.freebsd.org/~picobsd/ ---- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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