| commit | e14808b49f55e0e1135da5e4a154a540dd9f3662 | [log] [tgz] |
|---|---|---|
| author | Mel Gorman <mgorman@suse.de> | Mon Nov 19 10:59:15 2012 +0000 |
| committer | Mel Gorman <mgorman@suse.de> | Tue Dec 11 14:42:51 2012 +0000 |
| tree | d66708455dcc1b6e2e15937d732ab12c121e623a | |
| parent | a8f6077213d285ca08dbf6d4a67470787388138b [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>