Date: Sat, 31 Jan 2004 16:02:21 +0100 From: Jacques Beigbeder <Jacques.Beigbeder@ens.fr> To: freebsd-questions@freebsd.org Subject: NFS performances on 5.1 Message-ID: <20040131150221.GA24039@trefle.ens.fr>
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On a same Ethernet 100 LAN, I have several Unix and an NFS Solaris fileserver. On these Unix, I tried: time dd=/fileserver/aFile of=/fileserver/otherFile bs=32768 On each try, I use new files, to avoid the impact of file caching. I measured the time spent and the number of Ethernet packets (with snoop). I found: NFS client time # pkts =============== ======= ====== Solaris 3.11s 2296 Linux Redhat9 2.42s 1929 FreeBSD 5.1 19.72s 14887 <!!! FreeBSD 4.9 3.04s 6380 FreeBSD 5.2 2.98s 5941 All FreeBSD uses: mount_nfs -U -3 -r 32768 -w 32768 ... Question: is there any tuning on 5.1 to get better performances? -- 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 75
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