From owner-freebsd-questions Wed Mar 21 23:49:16 2001 Delivered-To: freebsd-questions@freebsd.org Received: from nef.ens.fr (nef.ens.fr [129.199.96.32]) by hub.freebsd.org (Postfix) with ESMTP id E3D4237B71D for ; Wed, 21 Mar 2001 23:49:13 -0800 (PST) (envelope-from Jacques.Beigbeder@free.fr) Received: from trefle.ens.fr (trefle.ens.fr [129.199.96.17]) by nef.ens.fr (8.10.1/1.01.28121999) with ESMTP id f2M7nCq95432 for ; Thu, 22 Mar 2001 08:49:12 +0100 (CET) Received: from (beig@localhost) by trefle.ens.fr (8.10.1/jb-1.1) X-Authentication-Warning: trefle.ens.fr: beig set sender to Jacques.Beigbeder@free.fr using -f Date: Thu, 22 Mar 2001 08:49:11 +0100 From: Jacques Beigbeder To: freebsd-questions@freebsd.org Subject: Re: NFS performance tweaking Message-ID: <20010322084911.A6222@trefle.ens.fr> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit User-Agent: Mutt/1.2.5i Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG >> IMHO, most NFS tweaking is effective only for the older >> NFS UDP protocol. If your NFS clients are in the 21st >> century they will be using TCP and in theory uou won't >> have to deal with these problems. I don't agree! For NFS mounts, parameters are: - Solaris : TCP (r/w)size=32768 a big write = 6s - FreeBSD mount : UDP 8192 6s - FreeBSD amd : TCP 8192 12s!!!! This third setting is very slow, even if is TCP. My answer: using defaults parameters with amd: opts:=rsize=32768,wsize=32768,vers=3,proto=tcp -- Jacques Beigbeder | Jacques.Beigbeder@ens.fr Service de Prestations Informatiques | http://www.spi.ens.fr Ecole normale supérieure | 45 rue d'Ulm |Tel : (+33 1)1 44 32 37 96 F75230 Paris cedex 05 |Fax : (+33 1)1 44 32 20 80 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message