Hello Peter, Julius,

Thanks for your inputs.

Actually, I'm doing some in-house experiments on server fine-tuning
using the most commonly available software components (KDE,
OpenOfficeOrg) hoping to get some useful data which may help in
scaling up an LTSP server.

I'm currently looking at RAM / Disk Channel usage vs. number of
clients. I'm working out with the server having as much RAM as
possible then systematically reducing it until I see some performance
degradation.  I hope to see a practical minimum RAM requirement per set number
of clients.

Do you know of any other monitoring app similar to what KDE already
has? It would be nice if the data can be initially logged and then
graphed and displayed at a later time.


Thanks again,

regards,

 Phil               mailto:[EMAIL PROTECTED]


Wednesday, October 16, 2002, 11:59:15 PM, Peter you wrote:

PB> Philip,
PB>   No need to worry about freeing this memory; the kernel does it automatically. 
The kernel will raise or lower the amount of memory used for cache depending upon the 
amount needed by running
PB> applications. Lots of memory used for cache is normally a good
PB> sign because it means you have plenty of memory available for the running 
applications and then some.

PB>   Cache significantly speeds up disk access times. You'll be very unhappy with 
system performance if cache ever gets to 0! :-)

PB>   The memory item you should worry about is swap. If you are using large amounts 
of swap or your machine is constantly swapping you probably could use some more 
memory. Swap kills system
PB> performance.

PB> Pete Billson


Wednesday, October 16, 2002, 10:59:05 PM, Julius you wrote:

JS> Philip,
JS>         the behavior you describe is exactly right. the system *should*
JS> use as much memory as possible for buffer cache. this memory is released
JS> for use as needed. why would you want to have tons of memory doing
JS> nothing? julius



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