From owner-freebsd-stable@FreeBSD.ORG Mon Jun 23 09:22:39 2008 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 2EAEB1065671 for ; Mon, 23 Jun 2008 09:22:39 +0000 (UTC) (envelope-from quakenet1@optusnet.com.au) Received: from mail06.syd.optusnet.com.au (mail06.syd.optusnet.com.au [211.29.132.187]) by mx1.freebsd.org (Postfix) with ESMTP id A9C2D8FC0A for ; Mon, 23 Jun 2008 09:22:38 +0000 (UTC) (envelope-from quakenet1@optusnet.com.au) Received: from [10.0.2.3] (c122-106-190-227.belrs3.nsw.optusnet.com.au [122.106.190.227]) by mail06.syd.optusnet.com.au (8.13.1/8.13.1) with ESMTP id m5N9MUl3019023; Mon, 23 Jun 2008 19:22:31 +1000 Message-Id: <302BA5BC-FD6C-4554-8291-D6539C297383@optusnet.com.au> From: Jerahmy Pocott To: David Malone In-Reply-To: <20080623090017.GB95600@walton.maths.tcd.ie> Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 7bit Mime-Version: 1.0 (Apple Message framework v924) Date: Mon, 23 Jun 2008 19:22:26 +1000 References: <0222EAC1-A278-41D2-9566-C9CF19811068@optusnet.com.au> <20080623090017.GB95600@walton.maths.tcd.ie> X-Mailer: Apple Mail (2.924) Cc: freebsd-stable@freebsd.org Subject: Re: Sysctl knob(s) to set TCP 'nagle' time-out? X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 23 Jun 2008 09:22:39 -0000 On 23/06/2008, at 7:00 PM, David Malone wrote: > On Mon, Jun 23, 2008 at 05:25:49PM +1000, Jerahmy Pocott wrote: >> So does anyone know IF this can be tuned and if so by what? > > You can tune it with net.inet.tcp.delacktime - it should be is ms. Yeah I saw that one. But that only changes the delayed ack... The default value of 100ms seems fairly reasonable unless you're talking about a LAN.. I guess what I really want to do is disable Nagle in the tcp stack, but since you do that with the sockopts call on a per socket basis I'm guessing there isn't any system wide tunable for it.. Thanks, Jerahmy.