RE: [gentoo-user] NFS Server Tuning

["Marzan, Richard non Unisys" <Richard.Marzan@unisys.com>]

Man fstab & man nfs{d} &  man mount and search for sync write options. Wsize and rsize=8192 and wsize=8192 might work but I think they are deprecated. Althought, async or sync might still be used. Use these options when mouting your nfs share or make them permanent in your fstab file. Gentoo-wiki has a good guide on this. I would have given you a good set of options but I'm not able to access the inet. 
> -----Original Message-----
> From: Stefan Onken [mailto:Support@stonki.de]
> Sent: Thursday, January 24, 2008 2:18 PM
> To: gentoo-user@lists.gentoo.org
> Subject: [gentoo-user] NFS Server Tuning
> 
> Hello,
> 
> I am running a x86 gentoo box as a nfs server. As a filesystem I am
> using XFS on a 3ware Raid system.
> 
> The 3ware systems seems to be quite quick, although access via NFS
> seems to be very slow. Any ideas how I can improve speed ? I was
> expected a speed only limited by the 100 Mbit network. Now, the
> speed is so slow, that reading/writing at the same time is nearly
> impossible.
> 
> Any ideas how to improve the speed ?
> 
> hdparm on the gentoo box machine:
> backup3 ~ # hdparm -tT /dev/sdb
> /dev/sdb:
> Timing cached reads:   4108 MB in  2.00 seconds = 2054.34 MB/sec
> Timing buffered disk reads:  232 MB in  3.01 seconds =  77.09 MB/sec
> 
> /etc/exports on the gentoo box:
> /mnt/backup/ 192.168.1.0/24
> (rw,no_root_squash,async,no_subtree_check)
> 
> I am not even able to run a bonnie benchmark on the client. It seems
> to hang while doing rewriting. Running bonnie on the nfs server
> gives a fast result.
> 
> /etc/fstab on the client:
> 192.168.1.3:/mnt/backup         /mnt/backup     nfs
> rw,users,async   0
> 
> http://pastebin.com/m72ae9d47
> 
> Any ideas ?
> 
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