Re: [PATCH 2.5.43-mm2] New shared page table patch

[Martin J. Bligh]

>>> Another thought, how does this play with NUMA systems? I don't have the
>>> problem, but presumably there are implications.
>> 
>> At some point we'll probably only want one shared set per node.
>> Gets tricky when you migrate processes across nodes though - will
>> need more thought
> 
> Page tables can only be shared when they're pointing to the same 
> data pages anyway, so I think it's just part of the larger problem 
> of node-local memory.

Yes, same problem as text replication. You're right, it's probably not 
worth solving otherwise - too small a percentage of the real problem.

M.