[Date Prev][Date Next]   [Thread Prev][Thread Next]   [Thread Index] [Date Index] [Author Index]

Re: [K12OSN] TC wifi initializtion - concept

Anything that uses the SDL toolkit for graphics is barely usable at 100Mbps and less than 1GHz on the client cpu. Tuxmath is barely usable with a 1Gbps network and a 1.5GHz client cpu.

On Tue, Apr 8, 2014 at 10:43 AM, Jeff Siddall <news siddall name> wrote:
On 04/07/2014 10:54 PM, Terrell Prude' Jr. wrote:
No way in heck I would want TC's on wireless.  It's a hub.  X11 screen
updates can suck up to 73 Mbit/sec when playing TuxType (I did this
measurement about 10 years ago and re-confirmed it about 5 years ago).
As much as the wireless hype may be going on now, there's just no way an
LTSP architecture can be successful on a hub, be that hub wireless or
wired.  Well, not if you intend to use the full complement of
educational apps, that is.  And don't even *think* about anything that
uses Flash, for the same reason.

LibreOffice'll work OK.  So will Gedit or even Firefox, provided there
aren't a lot of screen updates.  But relatively static (as far as screen
updates go) apps like that are about it.  Putting LTSP on wireless is a
recipe for failure, given current wireless technology.

I agree.

Wireless is just not cut out for _general_ LTSP use.  You might find some limited success for things like kiosks running everything as a localapp but the use cases are relatively niche.

I have moved most of my clients to switched wired 1000 Mbps connections because even dedicated 100 M connections were too slow for some things.  Also keep in mind that the apps that use a ton of bandwidth might not be obvious.  LibreOffice Impress was one of the applications that was frequently unusable at 100 Mbps.


K12OSN mailing list
K12OSN redhat com
For more info see <http://www.k12os.org>

James P. Kinney III

Every time you stop a school, you will have to build a jail. What you gain at one end you lose at the other. It's like feeding a dog on his own tail. It won't fatten the dog.
- Speech 11/23/1900 Mark Twain


[Date Prev][Date Next]   [Thread Prev][Thread Next]   [Thread Index] [Date Index] [Author Index]