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	Mon, 1 Dec 1997 14:59:44 -0600 (CST)
Date: Mon, 1 Dec 1997 14:59:35 -0600 (CST)
From: Justen Stepka <jstepka@chaos.winternet.com>
To: Tom <tom@uniserve.com>
cc: Mattias Pantzare <pantzer@ludd.luth.se>,
        Justen Stepka <jstepka@chaos.winternet.com>,
        FreeBSD-stable@freebsd.org
Subject: Re: CPU Load
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On Sun, 30 Nov 1997, Tom wrote:

> 
> On Mon, 1 Dec 1997, Mattias Pantzare wrote:
> 
> > On Sat, 29 Nov 1997, Justen Stepka wrote:
> > 
> > > Recently I added memory to my NFS server (dx4-100 now w/ 32 megs of RAM),
> > > when I did this the overall system preformance increased dramiticly. The
> > > problem that I noticed was that when using NFS/NIS the CPU load climbs to
> > > about 4.0+, is there a special reason that this might be happening?
> > 
> > The load value is not CPU load. It is the average number of processes
> > ready to run or waiting for disk I/O to complete.
> 
>   No, it is the average number of processes that are ready-to-run.
> Processes waiting for disk io (or any io) are not ready to run.
> 
> > So it is normal for a NFS server to have a high load, as it is often
> > waiting for disk I/O.
> 
>   It is normal for NFS servers to have a low load, because NFS serving is
> not CPU intensive, and io bound.
> 
>   A load of 4+ for a NFS server is not normal.  I would suggest
> determining which processes are using CPU time.  

the processes that are taking so much CPU time are the nsfd daemons, there
are two of them with a 35%+ WCPU and CPU.

Justen Stepka