RE: Can a task on each of 2 processors share 7 GB of physical m emory
RE: Can a task on each of 2 processors share 7 GB of physical m emory
- Subject: RE: Can a task on each of 2 processors share 7 GB of physical m emory
- From: Quinn <email@hidden>
- Date: Fri, 14 Nov 2003 01:27:26 +0000
At 8:58 -0800 13/11/03, Miller, Larry wrote:
By wired, I mean the data that I put in the memory remains at a fixed place
in physical memory - it is not paged out. This would probably be equivalent
to a fixed mapping from VM to physical memory.
OK, there's no limit to the amount of memory that you can wire in this manner.
I heard that OS-X Panther was in some ways a 64-bit OS. In other words, I
thought tasks could execute 64-bit addressing load and store machine
instructions. Maybe I am mistaken.
Also, I maybe mistakenly thought that you could compile a C/C++ program in a
way such that you could have 64-bit pointers that are dereferenced.
On current versions of Mac OS X all processes have a 32-bit address
space and run in 32-bit mode. sizeof(char *) is always 4.
If these things are not available, does anyone one have an idea of when they
will become available in the future?
At 9:58 +0000 13/11/03, Quinn wrote:
Apple is aware of the need to support 64-bit address spaces.
However, I'm not authorised to say anything about our plans in this
area.
S+E
--
Quinn "The Eskimo!" <
http://www.apple.com/developer/>
Apple Developer Technical Support * Networking, Communications, Hardware
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