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Max Memory Reading

> From: joon yoo [mailto:jyoo1971 (at) gmail.com] 
> Subject: Re: Max Memory Reading
> 
> is it a windows limitation or an intel x86 limitation?

Windows, due to limiting an individual process' virtual space to 2 GB.
(Some versions of Windows Server allow configuration of a 3 GB process
space, but that option is not often used.)  This 2 GB is usually
somewhat fragmented due to DLLs being loaded in odd places; the JVM heap
requires contiguous virtual space, so that's why the max heap size on
Windows is around 1.5 GB.

I don't know what virtual space BSD Linux allocates for each process,
nor whether or not there are fragmentation issues with that space.

 - Chuck


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