From owner-freebsd-questions@FreeBSD.ORG Mon May 16 11:57:11 2005 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 6C27E16A4CE for ; Mon, 16 May 2005 11:57:11 +0000 (GMT) Received: from smarthost2.sentex.ca (smarthost2.sentex.ca [205.211.164.50]) by mx1.FreeBSD.org (Postfix) with ESMTP id F3F1D43DC3 for ; Mon, 16 May 2005 11:57:10 +0000 (GMT) (envelope-from mike@sentex.net) Received: from BLUELAPIS.sentex.ca (cage.simianscience.com [64.7.134.1]) by smarthost2.sentex.ca (8.13.3/8.13.3) with SMTP id j4GBv9w6079293; Mon, 16 May 2005 07:57:09 -0400 (EDT) (envelope-from mike@sentex.net) From: Mike Tancsa To: Andrea Venturoli Date: Mon, 16 May 2005 07:57:14 -0400 Message-ID: <9f2h819gnc2938un66cpouvnrbti39adsv@4ax.com> References: <4286313A.3080102@netfence.it> <428873A1.1060209@netfence.it> In-Reply-To: <428873A1.1060209@netfence.it> X-Mailer: Forte Agent 1.93/32.576 English (American) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable X-Virus-Scanned: ClamAV version 0.84, clamav-milter version 0.84e on smarthost2.sentex.ca X-Virus-Status: Clean cc: freebsd-questions@freebsd.org Subject: Re: NFS read-ahead? X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 16 May 2005 11:57:11 -0000 On Mon, 16 May 2005 12:19:13 +0200, in sentex.lists.freebsd.questions you wrote: >Now, the manual pages says for -a I should give values greater than 1 if= =20 >bandwidth*delay is high. I'm on a swithed FastEthernet, so=20 >bandwidth=3D100Mb/s and delay is around 0.2 ms of ping roundtrip time. >As for -r it says it should be used when there are many "fragments=20 >dropped due to timeout"; yet I see almost none. > >Do you have any suggested values to start with, before I make random=20 >experiments? Hi, Offhand, not really, but if you look around via google for mount_nfs freebsd "-r" a lot of people suggest r=3D32768,-w=3D32768. Perhaps use that as a starting point and experiment to see what gives you the best performance for your situation. ---Mike -------------------------------------------------------- Mike Tancsa, Sentex communications http://www.sentex.net Providing Internet Access since 1994 mike@sentex.net, (http://www.tancsa.com)