Heap Size in 32 bit Redhat

[Clemens Eisserer]

Hi,

As far as I know there's still the 3GB/1GB user/kernel-space split
even when using PAE.
PAE doesn't expand the memory available per-process, but enables the
OS to use up to 64GB with each process still limited to its 32-bit
adress range (with some percentage reserved for the kernel).

I would suggest using 64-bit JVM with CompressedOops, usually that
performs very good :)

- Clemens
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