slow thin client
chas at honton.org
Mon Nov 13 02:09:47 GMT 2006
I've got a school lab setup with 24 thin clients going against a single
lab computer. I'm using the LTSP Muecow as outlined in the edubuntu
wiki. This summer, when I was testing it, there were no problems. Once
I got a classroom full of kids, the response time was incredibly slow.
To narrow down the problem I used top, vmstat, and bwm-ng. I
immediately found a swapping issue. So I upgraded the Ram from 1G to
3G. If anything, the problem seems even worse. Now, I don't have any
swapping but CPU utilization is @ 80% us 10% sy and network bandwidth is
8Kb/sec. I'm guessing the issue is I just don't have enough horsepower
to run the number of users I have.
Do you concur?
How many clients should I be able to run?
Any ideas on how to increase response time?
How easy would it be to move processing to the local clients?
More information about the ubuntu-devel