Date: Wed, 21 Mar 2001 14:43:15 +0100 (CET) From: Jan Conrad <conrad@th.physik.uni-bonn.de> To: Matt Dillon <dillon@earth.backplane.com> Cc: Alfred Perlstein <bright@wintelcom.net>, Gordon Tetlow <gordont@bluemtn.net>, Rich Morin <rdm@cfcl.com>, <freebsd-stable@FreeBSD.ORG> Subject: Re: NFS performance Message-ID: <Pine.BSF.4.33.0103211332070.1867-100000@merlin.th.physik.uni-bonn.de> In-Reply-To: <200103201911.f2KJBAR96066@earth.backplane.com>
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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
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