>> Anyway, I'm giving your code a quick spin ... will give you some
>> results later ;-)
>
> Hmmm .... well I ran the One True Benchmark (tm). The patch
> *increased* my kernel compile time from about 20s to about 28s.
> Not sure I like that idea ;-) Anything you'd like tweaked, or
> more info? Both user and system time were up ... I'll grab a
> profile of kernel stuff.
>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.
An old compile off 2.5.31-mm1 + extras (I don't have 37, but similar)
87elapse133639 total 0.1390
74447 default_idle
6887 do_anonymous_page
4456 page_remove_rmap
4082 handle_mm_fault
3733 .text.lock.namei
2512 page_add_rmap
2187 __generic_copy_from_user
1989 rmqueue
1964 .text.lock.dec_and_lock
1761 vm_enough_memory
1631 file_read_actor
1599 zap_pte_range
1507 __free_pages_ok
1323 find_get_page
1117 do_no_page
1097 get_empty_filp
1023 link_path_walk
2.5.37-mm1
256745 total 0.2584
82934 default_idle
38978 do_anonymous_page
36533 rmqueue
35099 __free_pages_ok
5551 page_remove_rmap
4694 handle_mm_fault
3166 page_add_rmap
2904 do_no_page
2674 .text.lock.namei
2566 __alloc_pages
2526 zap_pte_range
2306 __generic_copy_from_user
2218 file_read_actor
1803 vm_enough_memory
1789 do_wp_page
1557 .text.lock.dec_and_lock
1414 find_get_page
1251 do_softirq
1123 release_pages
1086 link_path_walk
1072 get_empty_filp
1038 schedule
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This archive was generated by hypermail 2b29 : Mon Sep 23 2002 - 22:00:33 EST