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Re: [K12OSN] Slight O.T. - FreeNX



I can't speak to the settings but I can tell you that I have noticed
that Ubuntu does seem to have some performance issues.  In my case it
is all related to dbus using 100% of the cpu and driving the load
average very very high (>300 at times).   A fix for this is to
increase the nofile setting (defaults to 1024).  See:
https://bugs.launchpad.net/ubuntu/+source/dbus/+bug/381063

If the sluggishness is due to dbus, this might help ... and if you are
going to have more than 30'ish users, it is needed.

Sincerely,
Dave Hopkins

On Mon, Oct 18, 2010 at 12:21 AM, Joseph Bishay <joseph bishay gmail com> wrote:
> Hello,
>
> I hope everyone is doing well.
>
> So I am in the process of testing out a new installation of Edubuntu
> and I noticed that FreeNX seems to be *much* slower on Ubuntu than on
> Fedora.  Here's the setup:
>
> - Fedora 10 server (older hardware)
> - Edubuntu 10.10 server (ironically newer hardware)
>
> Both these servers are in the same rack, plugged into the same switch
> going to the same router out to the Internet.
>
> I'm connecting to both of them using the NoMachine NX client from the
> same computer at home.  Configuration at the client end is identical
> (resolution, LAN settings, etc.)
>
> I can easily see the screen refreshing during the Edubuntu session
> while the Fedora session is much more smooth.
>
> Is this something anyone else has noticed?  Or are there specific
> settings on the servers that I would need to change to maximize
> performance?
>
> Thank you
> Joseph
>
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