[CentOS] CentOS server running java - won't let go of swap

> I'm pretty sure that's not true.  Permgen is just part of the heap space and
> none of that accounts for the executing part of the JVM.  In any case, you
> probably want to allow some free memory to be used for filesystem cache.

I'll read up on this some more.  I'm not a java expert.

>> Are there any tools that let you look inside  the swap disk or file
>> and see exactly what is being placed there?
>
> In top, hit 'f', then 'p' to add a column to show swap usage by process.

Well, looks like java is the culprit.  I'll work with the devs and QA
people some more to see if we can track down the source, maybe it's a
memory leak...