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Date: Sat, 31 Dec 2005 00:04:21 -0500
From: Kris Kennaway <kris@obsecurity.org>
To: Angel Blazquez <boisan@gmail.com>
Message-ID: <20051231050421.GA66671@xor.obsecurity.org>
References: <b698c5950512290219g4ff5f771x5a489e7c55503d3b@mail.gmail.com>
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Cc: freebsd-questions@freebsd.org
Subject: Re: nfs server overload (nfsd)
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On Thu, Dec 29, 2005 at 11:19:10AM +0100, Angel Blazquez wrote:
> Hello,
>=20
> We are expecting incredible overload in a NFS server. A top shows nfsd
> consuming most of the CPU:
>=20
> PID USERNAME     PRI NICE   SIZE    RES STATE  C   TIME   WCPU    CPU COM=
MAND
> 6000 root          -8    0  1204K   660K biord  1 124:15 27.88% 27.88% nf=
sd
> 6002 root           4    0  1204K   660K *Giant 0 124:18 17.58% 17.58% nf=
sd
> 6006 root           4    0  1204K   660K *Giant 0 123:38 10.21% 10.21% nf=
sd
> 6005 root           4    0  1204K   660K *Giant 0 123:36  7.47%  7.47% nf=
sd
> 6003 root           4    0  1204K   660K *Giant 0 123:08  4.15%  4.15% nf=
sd
> 6001 root           4    0  1204K   660K *Giant 0 123:16  2.83%  2.83% nf=
sd
>=20
> Memory looks fine:
>=20
> Mem: 27M Active, 910M Inact, 136M Wired, 51M Cache, 112M Buf, 1828K Free
> Swap: 2048M Total, 72K Used, 2048M Free
>=20
> Typing in the nfs server (console/ssh) becomes terrible, the server does
> not reply well.
>=20
> 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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