understanding applications and PAE

Alan Cox alan at redhat.com
Tue Dec 9 01:58:38 UTC 2003


On Mon, Dec 08, 2003 at 07:16:48PM -0500, James Olin Oden wrote:
> but each process still can only address 4Gig of memory less the amount of
> memory under 4Gig the kernel is using.  If you wanted a single app
> to use more than 4Gig, at this point you would need to create several
> processes that share memory.  Even this this is very specific to the 
> application as to whether such a scheme could be used effectively (you
> would in effect be shuffling data around processes as needed).
> 
> Does anyone know of any other solutions than PAE?

A 64bit system. 

There really isnt a way to go beyond PAE type approaches without madness
and keep x86-32 behaviour. Intel didn't do PAE solely to be annoying, its
a real limitation and aspects of it hurt kernel performance too






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