Re: [PATCH 00/07][RFC] i386: NUMA emulation

Martin J. Bligh
2005-10-03T14:59:43Z

> if nothing else preferential use of 'local' (non PAE) memory over
> 'remote' (PAE) memory for programs, while still useing it all as needed.

Why would you want to do that? ;-)

> this may be done already, but this type of difference between the access
> speed of different chunks of ram seems to be exactly the type of thing
> that the NUMA code solves the general case for.

It is!

> I'm thinking that it
> may end up simplifying things if the same general-purpose logic will
> work for the specific case of PAE instead of it being hard coded as
> a special case.

But that's not the same at all! ;-) PAE memory is the same speed as
the other stuff. You just have a 3rd level of pagetables for everything.
One could (correctly) argue it made *all* memory slower, but it does so
in a uniform fashion.

M.