[K12OSN] speed question

Kemp, Levi lnkemp at bolivar.k12.mo.us
Tue Apr 10 18:07:55 UTC 2007


> -----Original Message-----
> From: k12osn-bounces at redhat.com [mailto:k12osn-bounces at redhat.com] On
> Behalf Of Robert Arkiletian
> Sent: Thursday, April 05, 2007 2:50 PM
> To: Support list for open source software in schools.
> Subject: Re: [K12OSN] speed question
> 
> On 4/5/07, Kemp, Levi <lnkemp at bolivar.k12.mo.us> wrote:
> >
> >
> >
> >
> > Well that's almost disappointing. My boss wants to buy a whole new
lab
> of
> > thin clients and LCD's. I wanted to use my current lab, all the
iPaqs,
> and
> > possibly get new monitors, I'd rather use the money on a server and
new
> > network equipment. The problem is then, if I go with our current
> computers,
> > they probably won't be good enough for the multimedia applications.
They
> are
> > on the i810 chipset, but unfortunately don't support any upgrades
aside
> from
> > memory. So what thin client would someone recommend for use in a
> multimedia
> 
> Before you go out and buy all new clients. If I read correctly your
> current ones are 500Mhz Celerons with 256MB. They *might* be good
> enough to run Mplayer locally if that's what you mean by multimedia
> apps. LTSP 5 is supposed to be easier to do local apps and I think
> K12LTSP 7 is going to use LTSP 5. Even if you have video cards like
> the Matrox G400 or the Radeon 9200 as Terrell suggests you can't
> really have a whole lab all watching fullscreen video/sound
> (headphones) at the same time. It will not only hammer your server
> trying to decompress 30 video streams simultaneously but also saturate
> even a gigabit linked eth0, not to mention video/audio sync problems
> over the network. But you can do this with Mplayer as a local app.
> Provided you have clients powerful enough.
> 
> 
> --
> Robert Arkiletian
> Eric Hamber Secondary, Vancouver, Canada
> Fl_TeacherTool http://www3.telus.net/public/robark/Fl_TeacherTool/
> C++ GUI tutorial http://www3.telus.net/public/robark/
> 
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Mplayer, Realplayer, and apps like that is what I meant by multimedia.
And whatever they might use online such as flash. I wouldn't imagine all
30 clients running at the same time. Even in the open lab there isn't
much time available for them to be doing something other then the
lesson, or school work. Hopefully these will work out then, it would let
me beef up a server enough to handle a bigger load. Even if there is a
limit on the network bandwith.

Levi




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