Messages in this thread | | | Date | Sat, 11 Oct 2008 11:19:29 +0200 | From | Brice Goglin <> | Subject | Re: [PATCH] mm: use a radix-tree to make do_move_pages() complexity linear |
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Nick Piggin wrote: > If you are worried about vmalloc overhead, I'd suggest testing with -mm. > I've rewritten the vmap code so it is now slightly scalable and sane to > use. >
I am actually only worried about move_pages() performance for large buffers :) The vmalloc overhead is probably negligible against the quadratic duration of move_pages() for dozens of MB.
Brice
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