Re: [PATCH] mm: MADV_WILLNEED implementation for anonymous memory

[Andi Kleen]

> Yeah, the 2.5 switch to physical scanning killed us there.
> 
> I still don't know why my allocate-swapspace-according-to-virtual-address
> change didn't help.  Much.  Marcelo played with that a bit too.

I've been thinking about just always doing swap on > page clusters. 
Any reason swapping couldn't be done on e.g. 1MB chunks? 

-Andi
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