Using up memory and swap space

[Margaret Doll]

I should have mentioned that I do use top.  "top" however, on our  
system does not show a big user of memory.

On Jun 2, 2009, at 4:57 PM, Margaret Doll wrote:

> I have a ROCKS cluster running RedHat  2.6.18-53.1.14.e15 on the  
> kernel.
>
> From time to time the memory and swap space on the system is almost  
> completely used and the system hesitates.  The users logged onto the  
> system are not taking up the memory.
>
> How do I find which process is using the memory?
> If the memory is no longer being used by a process, how do I "free"  
> it up.
>
> Same question with the swap space.
>
> free
>             total       used       free     shared    buffers      
> cached
> Mem:       2054132    2026008      28124          0       1816     
> 1348832 -/+ buffers/cache:     675360   1378772
> Swap:      1020116     983328      36788
>
> Thanks.
>
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