Messages in this thread | | | Date | Sun, 4 Aug 2002 10:42:03 -0300 (BRT) | From | Rik van Riel <> | Subject | Re: question on dup_task_struct |
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On Sat, 3 Aug 2002, Linus Torvalds wrote: > On Sat, 3 Aug 2002, Andrew Morton wrote: > > > > It's not a 1-order allocation. I'll go back to sleep now. > > According to slabinfo, it's an order-2 allocation at least on SMP-x86, > which is kind of sad. The object size is 1664 bytes, and the slab code > decides that putting two of them per page is too wasteful, so it > apparently puts 9 of them on 4 pages instead.
> So I think it should be just GFP_KERNEL.
Trying a little bit of active defragmentation for 4 and 8-page allocations should be trivial with rmap. If you want I could take a stab at writing this code.
regards,
Rik -- Bravely reimplemented by the knights who say "NIH".
http://www.surriel.com/ http://distro.conectiva.com/
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