Date: Tue, 11 Dec 2007 23:50:29 -0800 From: Michael Smith <mksmith@adhost.com> To: Mike Tancsa <mike@sentex.net> Cc: Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl>, freebsd-questions@freebsd.org Subject: Re: why nfs is so slow? Message-ID: <6A07327E-83AE-4CCA-B85A-C2F7C3AD5E3F@adhost.com> In-Reply-To: <lliul3dh56vnkt5v0so261hl61jfl9eg2h@4ax.com> References: <20071211120127.F1536@wojtek.tensor.gdynia.pl> <lliul3dh56vnkt5v0so261hl61jfl9eg2h@4ax.com>
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On Dec 11, 2007, at 6:45 PM, Mike Tancsa wrote: > On Tue, 11 Dec 2007 12:02:07 +0100 (CET), in > sentex.lists.freebsd.questions you wrote: > >> i'm getting about 6MB/s with NFS (100Mbit cross-connect ethernet), >> while >> over 9.5 by FTP. >> >> nfs is set to work over TCP. > > What mount options are you using ? > > I use something like the following > > 172.18.23.34:/backup/backup2 /offsite-backup nfs > rw,-r=32768,-w=32768,tcp,noauto > > in fstab > > ---Mike > We've had good luck with the following options: rw,tcp,intr,noatime,nfsv3,-w=65536,-r=65536 along with the following in /etc/sysctl.conf net.inet.ip.fastforwarding=1 net.inet.ip.intr_queue_maxlen=5000 kern.ipc.maxsockbuf=8388608 net.inet.tcp.sendspace=3217968 net.inet.tcp.recvspace=3217968 And, finally, turning on polling on the interface on our disk array. We are getting a solid 300 Mb/sec on a GigE link. Regards, Mike
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