Help! 10.04 LTSP becomes very slow to load and operate.

[Jim Christiansen]

Hello,

Our network has been segregated to isolate and streamline any excessive or
errant network troubles.  I haven't put the server under load yet as the
wiring seemed a good place to fix up first.  It is strange how the 10.04
LTSP will really perform so well for 30 minutes or 3 hours
then quickly degrade in performance...  I'm still using an old 4 gig 3 core
ltsp server with Centos as the backup server for my classroom.  It runs out
of ram at about 23 users or so but is very reliable.

Sounds like we may have performance issues stemming from the same problem.
 I'm going to re-install the LTSP system using two nics this time and leave
everything default.  Luckily I have a switch connected straight to the
outside located in my classroom.

Jim

On Mon, Nov 22, 2010 at 5:31 PM, Mr. Klaas Hoekstra <
khoekstra at ccshamilton.ca> wrote:

> Jim,
>
> We are experiencing the same slowness or lag with our thin clients.  We are
> running Ubuntu 10.04 ltsp
>
> We purchased a 24 gig ram, 6 processor client.  We also have a file server
> that hosts our user names.  Our compaq computers are 5-6 years old.  The lag
> happens daily.
>
> I have found that when students log on to the thin clients using local user
> names hosted on the thin client, the lag is much improved.  We've killed any
> cache from Firefox.  Flash is a killer.  We installed a Gig switch with
> hopes to make it smooth.  The processors are not running high and the memory
> is fine.  The network bandwidth seems within normal range for a thin client
> service.
>
> Did you make any improvements that you could share?
>
> Thanks,
>
>
> Klaas
>
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