On Wed, 7 Apr 2010 15:56:19 -0500, Richard Shaw <[email protected]>
wrote:
> On Wed, Apr 7, 2010 at 5:29 AM, Tino Schwarze <[email protected]>
> wrote:
>> On Wed, Apr 07, 2010 at 12:11:31PM +0200, Norbert Schulze wrote:
>
> [SNIP]
>
>>> OS is Ubuntu 9.04 32Bit
>>> IMHO it is better to migrate to a 64Bit-System!?
>>
>> I don't see an urgent reason to migrate to 64 bit... I would have
>> installed this machine 64 bit at the beginning, just because it's a 64
>> bit machine. You'll lose some performance, but it might be barely
>> noticeable.
>
> I'm not so sure that's the case. My understanding is that a 32-bit OS
> can only address a little over 3GB of physical memory, since the
> system has 8GB, I would think you would want to upgrade to a 64-bit
> OK.
>
> Richard
Using PAE, you can have >3.5 G of usable ram on a system. HOWEVER, each
individual process only has a 4GB virtual address space, so only 4G of ram
per process. If you have >1 memory-intensive process you can make use of 8G
of ram on a 32-bit system.
-Josh
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