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Daniel,

On 2/8/2011 4:56 PM, Daniel Savard wrote:
> However, increasing this limit for all instances may lead to a
> situation where enough instances are claiming more memory at the same
> time and beyond the physical memory available.

Exactly. With the low-memory limit on each JVM, you are basically
limited to OOME on a single JVM, while a high-memory limit on each JVM
means that they can more easily interfere with each other due to paging.

Of course, low-memory limits can still have this effect but if you do
your math right  -- system_memory / ((64MiB + slop_factor) * JVM_count)
then you should be just fine. Your vendor's demand that you increase the
heap space ruins that calculation.

- -chris
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