But this is not a fundamental issue, it's implementation. Whereas non-rmap
will always suck on large systems, for fundamental reasons that are unrelated
to the quality of the implementation.
> I'd love to see rmap
> in the main kernel, but it needs to get the scalability fixed first.
Yes.
> The main problem seems to be pagemap_lru_lock ... Rik & crew
> know about this problem, but let's give them some time to fix it
> before rmap gets put into mainline ....
Yes, yes and yes.
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