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Re: [K12OSN] Server specs



How to DRASTICALLY speed up app response on K12LTSP
http://www.redhat.com/archives/k12osn/2007-October/msg00084.html
(it helps)

also, use dual-core if you can.
if all fails... use Opera. we use it and it's fastttttt ! especially with KDE desktop
(they share the same qt libraries so it take less memory and less time to load)

you can pre load firefox or have a script that loads firefox
that does not load it the second time they click.

don't forget to use Squid proxy which helps even better.
when all surf to the same site.

and add "Click Notification" (jumping icon) so they know the click was accepted by the computer.

hope it help :-)

On 22/01/2008, James P. Kinney III <jkinney localnetsolutions com> wrote:
Looks like your RAM is sufficient but the cpu count is low. If you can
toss a dual core into the box, that will be the good. If you can put in
a quad-core, even better. I'm unclear on the specs of the machine you
listed.

You will need to run the PAE kernel on the server to use the 8GB most
efficiently (I think that machine is 32-bit and not 64-bit). The 32-bit
systems can't address more than 4GB RAM directly and the PAE kernels
provide a workaround.
On Tue, 2008-01-22 at 07:14 -0500, Ronnie Miller wrote:
> I need a little help from those better informed than I. I've got a lab of
> 28 terminals that is running on the Centos5 based LTSP. It's runs fairly
> well, but there are speed issues with programs not loading quick enough
> (mostly Firefox), which results in the kids clicking the programs multiple
> times, which in turn slows the server down even more. There's also
> intermittent problems with Flash, but from what I've been able to
> determine from the archives, is not unusual.
>
> The existing server is a refurbed 3 Ghz Xeon processor-based HP6000. I
> upgraded it from 4 GB of RAM to 8 GB (which I found out later was
> pointless), in order to help the speed issues. The speed issue is not a
> problem when one or two are trying to run different programs. The issues
> appear when you've got a room full of impatient first graders who are
> "click happy". The teachers aren't real thrilled about the problems and
> are grumbling about the K12LTSP lab. I've got another lab for 4th grade
> running the exact same setup and the Flash is not an issue with them as
> they don't use it much. As far as speed issues, they've been trained to
> click once and wait - not to sit there continuously clicking.
>
> After all this explanation, my question is this: what would be the specs
> needed for a decent/sufficient server running Centos5 and serving less
> than 30 terminals? I've got some money to spend, but not a large amount.
>
> Am I right in assuming that it's not a memory issue as much as it is a
> processor issue? In other words, won't I be a lot better off with either
> multiple processors or a dual-core type processor?
>
> Thanks for any help on this matter. You've all been a great resource when
> I've needed you in the past.
>
> --
> Ronnie Miller
> Technology Specialist
> Seminole County Schools
> 800 S. Woolfork Ave.
> Donalsonville, GA 39845
> 229.524.5235 Ext. 227
>
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>
--
James P. Kinney III
CEO & Director of Engineering
Local Net Solutions,LLC
770-493-8244
http://www.localnetsolutions.com

GPG ID: 829C6CA7 James P. Kinney III ( M.S. Physics)
<jkinney localnetsolutions com>
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