[FreeNX-kNX] How can I do Sizing?

[7th Sign | Iván Rico]

Thanks, this information is really usefull, ok, I'm gonna buy this server:
2 Xeon Quad Core 3.0 GHz
8 GB Ram
4 ethernet ports


this server should be support 400 user, is this possible?

2008/8/7 Florian Schmidt <fschmidt at gmx.at>

> Hi,
>
> we monitor for Server sizing the following values:
> - Number of processes and threads
> - nx agents / users
> - load average (15min, 1min, 15sec)
> - Total CPU usage (user, nice, system, IO, IRQ, SoftIRQ)
> - Memory usage (used, free, buffers, cached, swap)
> - CPU usage per nx agent
> - number of TCP connections
> => all this values where messured by self written perl scripts and plotted
> with drraw (rrd graphing tool)
>
> Out of this messurements we found out that our machine:
>
> SUN Fire X4100 (2x DualCore Opteron 2.2GHz, 16GB Memory, Dual PowerSupply,
> RAID1)
>
> Can support at maximum 100 user sessions without getting performance issues
> for the user.
>
> The installation is a RedHat Enterprise Linux 4.6 with:
> - screensavers disabled (only black screen)
> - disabled gamin (gam_server)
> - disabled polling of virtual floppy/CD drive (provided by the service
> processor)
>
> It should be also possible to load the machine with a higher amount of
> sessions by providing a higher number of memory. Faster CPUs are not
> important (nothing should be computed on such a machine anyways) a higher
> number of cpu cores provides better user scaling. So maybe with a new
> X4100M2 with AMD QuadCore Opteron Processors and 8x4GB of memory it would be
> possible to provide 200 or more sessions on a single machine.
>
> This machine runs login sessions, shells, browser, some small interactive
> tools, everything taking more CPU or memory get's dispatched to the
> companies compute farm.
>
> I think it would be nice when also other people post there results in
> session scalability here so we can compare and learn.
>
> Cheers,
> Florian
>
> P.S.: Sorry but currently I am not allowed to post our monitoring scripts.
> -------- Original-Nachricht --------
> > Datum: Wed, 6 Aug 2008 16:41:05 -0500
> > Von: "7th Sign | Iván Rico" <7th_sign at soy-geek.com>
> > An: "User Support for FreeNX Server and kNX Client" <freenx-knx at kde.org>
> > Betreff: [FreeNX-kNX] How can I do Sizing?
>
> > Hello list,
> >
> > I have a question, again =P
> >
> > it is about the sizing of the NX Server, I mean, how do I measure the
> > server?
> > I want to have the right especification.
> >
> > I was looking for ths but I don't have anything.
> >
> > Ivan Rico
>
> --
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