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From karl wettin <karl.wet...@gmail.com>
Subject Re: Sorting
Date Mon, 31 Jul 2006 10:11:31 GMT
On Mon, 2006-07-31 at 11:54 +0200, Andrzej Bialecki wrote:
> Chris Hostetter wrote:
> > 1) I didn't know there were any JVMs that limited the heap size to 1GB ...
> > a 32bit address space would impose a hard limit of 4GB, and I've heard
> > that Windows limits process to 2GB, but I don't know of any JVMs that have
> > 1GB limits.
> >   
> 
> I believe all Win32 JVM-s have a limit of ~1.3GB (~1.9GB if using 
> rebase.exe), which quite often can't be reached anyway due to memory 
> fragmentation. Read here for a somewhat funny analysis:
> 
> *http://www.oreillynet.com/digitalmedia/blog/2005/01/what_is_the_largest_text_file.html*
> 
> *nix OS-es on 32-bit platforms indeed have 4GB addressing space, but at 
> least 1GB of this space is reserved for kernel use ... If I'm not 
> mistaken most 2.6.x Linux distros run now with 1GB/3GB split between 
> kernel/user space, and 2.4.x kernels ran with 2GB/2GB split.

I love my 64bit Solaris and -XX:+AggressiveHeap.

:D


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