[ubuntu-uk] 64-bit vs 32-bit

[Tyler J. Wagner]

On 2012-11-14 17:02, Rob Beard wrote:
> IIRC if you want to run processes with more than 4GB memory then you need a
> 64-Bit OS, but even with 4GB Ram you can use all the memory if you enable
> the kernel with PAE support.

With PAE you can use the RAM in total. However, each process is still
limited to the maximum addressable 2^32 bytes. So if you want to say, let
GIMP open a 4 GB image, you cannot do it on a 32-bit kernel without swapping.

Not that it would be advisable to do so.

Regards,
Tyler

-- 
"You may not like Grandma's Thanksgiving turkey. It may be overcooked
and dry - and her stuffing salty and studded with rubbery pellets of
giblet you find unpalatable in the extreme. You may not even like turkey
at all. But it's Grandma's turkey. And you are in Grandma's house. So
shut the fuck up and eat it."
   -- Anthony Bourdain, on the "Grandma Rule" for travellers