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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 <[email protected]>
This commit is contained in:
Mel Gorman 2012-11-22 11:16:36 +00:00
commit 1a687c2e9a
7 changed files with 101 additions and 17 deletions
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8
init/Kconfig
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@ -720,6 +720,14 @@ config ARCH_USES_NUMA_PROT_NONE
depends on ARCH_WANTS_PROT_NUMA_PROT_NONE
depends on NUMA_BALANCING
config NUMA_BALANCING_DEFAULT_ENABLED
bool "Automatically enable NUMA aware memory/task placement"
default y
depends on NUMA_BALANCING
help
If set, autonumic NUMA balancing will be enabled if running on a NUMA
machine.
config NUMA_BALANCING
bool "Memory placement aware NUMA scheduler"
default y