On 27/04/10 13:39, Liam Proven wrote:
> On Tue, Apr 27, 2010 at 1:02 PM, Rob Beard<r...@esdelle.co.uk>  wrote:
>
>> Strange, I'm running Lucid 32-Bit on my machine (with 4GB Ram) and it
>> sees the full 4GB fine.  I gather the kernel has got PAE extensions or
>> whatever it is to support over 3.25GB (although I gather the memory
>> limit per process is 4GB, not a problem for me though since I only have
>> 4GB Ram anyway).
>
> No, PAE is a paging mechanism for a *32-bit* kernel to swap in extra
> RAM on a machine with>4GB. It has nothing to do with a 64-bit desktop
> OS accessing more memory.
>
> PAE was rarely used and only really on server machines years ago.
>

Yep, if you notice I mentioned I'm running 32-Bit Lucid on my laptop 
with 4GB Ram...

r...@aspire:~$ uname -r
2.6.32-19-generic-pae
r...@aspire:~$ free -m
              total       used       free     shared    buffers     cached
Mem:          4012       2820       1191          0        138       1418
-/+ buffers/cache:       1264       2748
Swap:          502          0        502

This is on Ubuntu 10.04 Beta 2 Desktop.  I'm considering upgrading to 
64-Bit when it comes out on Thursday though as I've started a new role 
which involves some Windows Server stuff and I dare say being able to 
run the 64-Bit Windows server 2008 on VirtualBox would be handy for me.

Rob

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