nfs server overload (nfsd)

[Kris Kennaway]

On Thu, Dec 29, 2005 at 11:19:10AM +0100, Angel Blazquez wrote:
> Hello,
> 
> We are expecting incredible overload in a NFS server. A top shows nfsd
> consuming most of the CPU:
> 
> PID USERNAME     PRI NICE   SIZE    RES STATE  C   TIME   WCPU    CPU COMMAND
> 6000 root          -8    0  1204K   660K biord  1 124:15 27.88% 27.88% nfsd
> 6002 root           4    0  1204K   660K *Giant 0 124:18 17.58% 17.58% nfsd
> 6006 root           4    0  1204K   660K *Giant 0 123:38 10.21% 10.21% nfsd
> 6005 root           4    0  1204K   660K *Giant 0 123:36  7.47%  7.47% nfsd
> 6003 root           4    0  1204K   660K *Giant 0 123:08  4.15%  4.15% nfsd
> 6001 root           4    0  1204K   660K *Giant 0 123:16  2.83%  2.83% nfsd
> 
> Memory looks fine:
> 
> Mem: 27M Active, 910M Inact, 136M Wired, 51M Cache, 112M Buf, 1828K Free
> Swap: 2048M Total, 72K Used, 2048M Free
> 
> Typing in the nfs server (console/ssh) becomes terrible, the server does
> not reply well.
> 
> We are running this nfs server in FreeBSD 5.3-RELEASE-p23 on a Compaq
> Proliant server with a Compaq Smart Array 5300 that comunicates with a
> array of disks:

You will experience *much* better performance if you upgrade to 6.0.

Kris
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