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    SubjectRe: [Lse-tech] [PATCH 1/2] node affine NUMA scheduler
    > From the below, I'd suggest you're getting pages off the wrong 
    > nodes: do_anonymous_page is page zeroing, and rmqueue the buddy
    > allocator. Are you sure the current->node thing is getting set
    > correctly? I'll try backing out your alloc_pages tweaking, and
    > see what happens.

    OK, well removing that part of the patch gets us back from 28s to
    about 21s (compared to 20s virgin), total user time compared to
    virgin is up from 59s to 62s, user from 191 to 195. So it's still
    a net loss, but not by nearly as much. Are you determining target
    node on fork or exec ? I forget ...

    Profile is more comparible. Nothing sticks out any more, but maybe
    it just needs some tuning for balance intervals or something.

    153385 total 0.1544
    91219 default_idle
    7475 do_anonymous_page
    4564 page_remove_rmap
    4167 handle_mm_fault
    3467 .text.lock.namei
    2520 page_add_rmap
    2112 rmqueue
    1905 .text.lock.dec_and_lock
    1849 zap_pte_range
    1668 vm_enough_memory
    1612 __free_pages_ok
    1504 file_read_actor
    1484 find_get_page
    1381 __generic_copy_from_user
    1207 do_no_page
    1066 schedule
    1050 get_empty_filp
    1034 link_path_walk

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