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| author | Andi Kleen <ak@linux.intel.com> | 2014-01-23 15:53:13 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-01-23 16:36:51 -0800 |
| commit | 54a43d54988a3731d644fdeb7a1d6f46b4ac64c7 (patch) | |
| tree | 87dc618d08b23d042e3ea01b3acbc56a0358cbdb /mm | |
| parent | 5e270e254885893f8c82ab9b91caa648af3690df (diff) | |
| download | linux-54a43d54988a3731d644fdeb7a1d6f46b4ac64c7.tar.gz linux-54a43d54988a3731d644fdeb7a1d6f46b4ac64c7.tar.bz2 linux-54a43d54988a3731d644fdeb7a1d6f46b4ac64c7.zip | |
numa: add a sysctl for numa_balancing
Add a working sysctl to enable/disable automatic numa memory balancing
at runtime.
This allows us to track down performance problems with this feature and
is generally a good idea.
This was possible earlier through debugfs, but only with special
debugging options set. Also fix the boot message.
[akpm@linux-foundation.org: s/sched_numa_balancing/sysctl_numa_balancing/]
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Mel Gorman <mgorman@suse.de>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/mempolicy.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/mempolicy.c b/mm/mempolicy.c index 0cd2c4d4e270..947293e76533 100644 --- a/mm/mempolicy.c +++ b/mm/mempolicy.c @@ -2668,7 +2668,7 @@ static void __init check_numabalancing_enable(void) if (nr_node_ids > 1 && !numabalancing_override) { printk(KERN_INFO "Enabling automatic NUMA balancing. " - "Configure with numa_balancing= or sysctl"); + "Configure with numa_balancing= or the kernel.numa_balancing sysctl"); set_numabalancing_state(numabalancing_default); } } |