[CentOS] real used RAM!

Linux kernel uses all ram for processes.  whatever is left is 
used for caching files to ram and buffers to speed things up. 
you can use the command free to see what the real used memory is 
in a simple format.

israel.garcia at cimex.com.cu wrote:
> List, I've installed my CentOS Server running progress 9.1D database
> system, with only 15 users working every day, this server has 2GB RAM,
> so, my question is: 
> Why the 2GB of RAM is always used? Even with only one user connected...
> How can I messuare the real RAM MEM used by my system split in proccess?
> Is there another tools which I use to compare the results from top. Or
> vmstat?
> 
> Regards,
> Israel 
> 
> 
> 
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> http://lists.centos.org/mailman/listinfo/centos
> 

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