[K12OSN] More feedback on Fedora 10 + LTSP
wtogami at redhat.com
Tue Apr 28 05:22:09 UTC 2009
On 04/27/2009 09:23 PM, David Hopkins wrote:
> Actually I can't make a claim either way since right now I'm confused
> about just how much throughput I am getting without ltspbr0 even
> present. I install iftop as well as ntop and have tried launching
> tuxmath on several thin clients simultaneously.
Where do you find tuxmath? It seems it isn't in Fedora 11 at least.
> For iftop: The first thin client used appr 38Mb/s just to bring up the
> menu. When running, it was using appr 70Mb/s for the game. The second
> client likewise used appr 38Mb/s for the menu. However, the moment I
> selected an option from the menu, both instances dropped to around
> 56Mb/s. When I added a third client, this dropped again, into the mid
> 30Mb/s range. The total throughput stayed constant at around 110Mb/s.
> However, even at 3 clients, the game was not playable (it was very
> very slow). I continued adding clients and iftop continued to report
> that the max stayed around 110Mb/s but the bandwidth for each client
> dropped with each addition. At six clients, it was about 18Mb/s per
Does tuxmath normally use that insane amount of bandwidth? 70Mb/sec is
comparable to 320x240 30fps Youtube video. Absolutely nothing other
than video in my experience using anything near that amount of bandwidth.
> However, the switch still showed that the link between it and the
> server was 1000Mb/s. So .. why is only about 1/10 of the bandwidth
> being used as far as iftop is concerned?
I have never used iftop before this, so I don't know how good it is.
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