>>> 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.
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