git.maquefel.me Git - linux.git/commit

author	Mel Gorman <mgorman@suse.de>
	Mon, 19 Nov 2012 10:59:15 +0000 (10:59 +0000)
committer	Mel Gorman <mgorman@suse.de>
	Tue, 11 Dec 2012 14:42:51 +0000 (14:42 +0000)
commit	e14808b49f55e0e1135da5e4a154a540dd9f3662
tree	d66708455dcc1b6e2e15937d732ab12c121e623a	tree \| snapshot
parent	a8f6077213d285ca08dbf6d4a67470787388138b	commit \| diff

mm: numa: Rate limit setting of pte_numa if node is saturated

If there are a large number of NUMA hinting faults and all of them
are resulting in migrations it may indicate that memory is just
bouncing uselessly around. NUMA balancing cost is likely exceeding
any benefit from locality. Rate limit the PTE updates if the node
is migration rate-limited. As noted in the comments, this distorts
the NUMA faulting statistics.

Signed-off-by: Mel Gorman <mgorman@suse.de>

include/linux/migrate.h		diff \| blob \| history
kernel/sched/fair.c		diff \| blob \| history
mm/migrate.c		diff \| blob \| history

ep93xx device tree rework repo: git://git.maquefel.me/linux.git

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