On Sun, May 07, 2006 at 01:55:12AM +0200, Jesper Juhl wrote:
> On 5/6/06, Dave Pitts <[email protected]> wrote:
> >Hello all:
> >
> >I've been trying some hacks to boost disk I/O performance
> [snip]
> >
> >This test is running several NFS clients to a RAID disk storage array. I
> [snip]
>
> For improving performance of NFS servers I've often had good success
> with increasing the 'rsize' and 'wsize' options.
> The default values are 4096, I personally set them to 16384 which
> usually helps NFS performance quite a bit. At least that's my
> experience.
> Simply add rsize=16384,wsize=16384 to the nfs mount options in
> /etc/fstab and see if that improves performance for you (values like
> 8192 and 32768 may also be worth testing, but personally I've found -
> at least with my setups - that 16384 seems to be the magic value).
> ('man 8 mount' and 'man 5 exports' also have more interresting options
> you may want to experiment with, but just rsize & wsize on their own
> should be a boost)
Another way is to increase the number of nfsd threads on the server.
See rpc.nfsd(8). I usually increase it from the default 8 to 32 on busy
machines.
Erik
--
+-- Erik Mouw -- www.harddisk-recovery.com -- +31 70 370 12 90 --
| Lab address: Delftechpark 26, 2628 XH, Delft, The Netherlands
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