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mm: sched: numa: Control enabling and disabling of NUMA balancing

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This patch adds Kconfig options and kernel parameters to allow the
enabling and disabling of automatic NUMA balancing. The existance
of such a switch was and is very important when debugging problems
related to transparent hugepages and we should have the same for
automatic NUMA placement.

Signed-off-by: Mel Gorman <mgorman@suse.de>
This commit is contained in:
Mel Gorman
2012-11-22 11:16:36 +00:00
parent b8593bfda1
commit 1a687c2e9a
7 changed files with 101 additions and 17 deletions
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6
kernel/sched/features.h
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@ -63,8 +63,10 @@ SCHED_FEAT(RT_RUNTIME_SHARE, true)
SCHED_FEAT(LB_MIN, false)
/*
* Apply the automatic NUMA scheduling policy
* Apply the automatic NUMA scheduling policy. Enabled automatically
* at runtime if running on a NUMA machine. Can be controlled via
* numa_balancing=
*/
#ifdef CONFIG_NUMA_BALANCING
SCHED_FEAT(NUMA, true)
SCHED_FEAT(NUMA, false)
#endif