Messages in this thread | | | Date | Sat, 3 Aug 2002 12:39:40 -0700 (PDT) | From | Linus Torvalds <> | Subject | Re: large page patch (fwd) (fwd) |
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On Sat, 3 Aug 2002, Hubertus Franke wrote: > > But I'd like to point out that superpages are there to reduce the number of > TLB misses by providing larger coverage. Simply providing page coloring > will not get you there.
Superpages can from a memory allocation angle be seen as a very strict form of page coloring - the problems are fairly closely related, I think (superpages are just a lot stricter, in that it's not enough to get "any page of color X", you have to get just the _right_ page).
Doing superpages will automatically do coloring (while the reverse is obviously not true). And the way David did coloring a long time ago (if I remember his implementation correctly) was the same way you'd do superpages: just do higher order allocations.
Linus
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