Re: Debian RAM supporting.
On 2009-04-01 22:57, Tapani Tarvainen wrote:
On Thu, Apr 02, 2009 at 11:32:26AM +0800, Bret Busby (email@example.com) wrote:
"A 64-bit operating system is required to enjoy the ultimate performance
of 4 GB memory"
So, does anyone who has something worth saying, know whether a 64 bit
CPU and a 64 bit OS, is required to properly use >= 4GB of RAM?
No, for reasonable definitions of "properly".
But the performance of a 32-bit CPU will suffer from the extension
mechanisms needed to handle memory space bigger than 2^32,
so if you are buying a new machine and plan to have over 4GB
of RAM, a 64-bit CPU and OS would be preferable.
To clarify: a 64-bit CPU with 32-bit userland works perfectly well,
especially where there are some proprietary apps that only have
32-bit versions, and you don't want the complexity of a chroot.
Scooty Puff, Sr