From owner-freebsd-stable Wed Mar 21 5:45:24 2001 Delivered-To: freebsd-stable@freebsd.org Received: from dirac.th.physik.uni-bonn.de (dirac.th.physik.uni-bonn.de [131.220.161.119]) by hub.freebsd.org (Postfix) with SMTP id 50F6137B720 for ; Wed, 21 Mar 2001 05:45:16 -0800 (PST) (envelope-from conrad@th.physik.uni-bonn.de) Received: (qmail 34960 invoked from network); 21 Mar 2001 13:43:15 -0000 Received: from merlin.th.physik.uni-bonn.de (131.220.161.121) by dirac.th.physik.uni-bonn.de with SMTP; 21 Mar 2001 13:43:15 -0000 Received: (qmail 2164 invoked by uid 145); 21 Mar 2001 13:43:15 -0000 Received: from localhost (sendmail-bs@127.0.0.1) by localhost with SMTP; 21 Mar 2001 13:43:15 -0000 Date: Wed, 21 Mar 2001 14:43:15 +0100 (CET) From: Jan Conrad To: Matt Dillon Cc: Alfred Perlstein , Gordon Tetlow , Rich Morin , Subject: Re: NFS performance In-Reply-To: <200103201911.f2KJBAR96066@earth.backplane.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG ok - to sum up a bit.. - for a good LAN, use UDP - use v3 (this is what I thought) - use standard data sizes but still... Our network connection between client and server is going directly over a BaySwitch 450 24T, all interfaces set to 100baseTX, half-duplex. So the LAN is good. We run 4 nfsd's and 4 nfsiods on each machine. I did the mount as 'mount_nfs ....' Even so 'mount' does'nt show, I suppose I made a v3 mount (from the source code of mount_nfs). BTW, is there any way to figure that out? If I do a 'dd if=/dev/zero of=zero2 bs=16k count=64x400' I get 419430400 bytes transferred in 147.402451 secs (2845478 bytes/sec) (varying from 2.5 to 2.8 Mb/s) maybe the box was loaded yesterday at my first try... Locally the server does 10Mb/s write and 33Mb/s read. So isn't 2.8 Mb/s a bit slow, still? Do you know what actually determines the writing speed in a case like our's? Network or disk? BTW, what is that '-q' switch to mount_nfs actually doing? -Jan -- Physikalisches Institut der Universitaet Bonn Nussallee 12 D-53115 Bonn GERMANY To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message