summaryrefslogtreecommitdiffstats
path: root/kernel/dma.c
diff options
context:
space:
mode:
authorMel Gorman <mgorman@suse.de>2012-11-19 10:59:15 +0000
committerMel Gorman <mgorman@suse.de>2012-12-11 14:42:51 +0000
commite14808b49f55e0e1135da5e4a154a540dd9f3662 (patch)
treed66708455dcc1b6e2e15937d732ab12c121e623a /kernel/dma.c
parenta8f6077213d285ca08dbf6d4a67470787388138b (diff)
downloadlinux-e14808b49f55e0e1135da5e4a154a540dd9f3662.tar.bz2
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>
Diffstat (limited to 'kernel/dma.c')
0 files changed, 0 insertions, 0 deletions