Messages in this thread | | | Date | Thu, 31 Jan 2008 05:52:09 -0500 | From | Rik van Riel <> | Subject | Re: [PATCH] mm: MADV_WILLNEED implementation for anonymous memory |
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On Thu, 31 Jan 2008 12:06:10 +0100 Andi Kleen <andi@firstfloor.org> wrote:
> > 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?
Don't malloc() and free() hopelessly fragment memory over time, ensuring that little related data can be found inside each 1MB chunk if the process is large enough? (say, firefox)
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