question about Java and VIRT memory

[Bobby Bissett]

Hi all,

I doubt this is the right list for this, but chose it hoping there's info
in the user's guide about this that I've missed or that someone can point
me in the right direction. Please feel free to send me somewhere else, but
just in case the question is below.

A customer is running a Java application of ours that starts with -Xmx128m
-- there are no problems specifically with the heap. But the process is
using over 4 gig of VIRT(ual) memory according to 'top'. I didn't think
that was generally an issue, but they are running with
"overcommit_memory=2" on this linux system, and that 4 gig of memory is
hurting things. Is there a jvm parameter to help with this?

FWIW, they're running openjdk 1.8. They need to upgrade to something newer;
if there's any particular version that might help with the virtual memory
it would be nice to know.

Thank you,
Bobby Bissett
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