Any suggestions for number of cores / heap size for g1 or cms?

[Ryan Gardner]

We have a non-cpu intensive app that is licensed based on cpu cores.

We want to use as much heap as is reasonable without having large pauses.

I've only deployed g1 on machines with lots of cores - how well does it
work on fewer cores? If we had a live set of 32gb and a heap of 72gb with a
relatively small object allocation rate would g1 have low pause times with
4 or 8 physical cores?

It doesn't matter too much how long the concurrent phase is - just the
pause parts that matter.

Any tips/suggestions?
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