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Re: [K12OSN] speed question



My lab handles FLASH with sound no problem.  Running K12LTSP 5 with
Firefox 2.0.0.3 and Flash 9.  I can have 22 units (in my lab, more around
school) all running various kids sites like Disney and PBS with no
issues.....those sites are FLASH heavy.  I do recommend running more than
one server if possible and running gigabit from server to switch.  I have
2 servers running in dhcp load balance/failover mode...easy to do.

"Support list for open source software in schools." <k12osn redhat com>
writes:
>> -----Original Message-----
>> From: k12osn-bounces redhat com [mailto:k12osn-bounces 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 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/
>> 
>> _______________________________________________
>> K12OSN mailing list
>> K12OSN redhat com
>> https://www.redhat.com/mailman/listinfo/k12osn
>> For more info see <http://www.k12os.org>
>
>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
>
>_______________________________________________
>K12OSN mailing list
>K12OSN redhat com
>https://www.redhat.com/mailman/listinfo/k12osn
>For more info see <http://www.k12os.org>



David N. Trask
Technology Teacher/Director
Vassalboro Community School
dtrask vcsvikings org
(207)923-3100



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