• Mel Gorman's avatar
    mm: numa: Rate limit setting of pte_numa if node is saturated · e14808b4
    Mel Gorman authored
    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: default avatarMel Gorman <mgorman@suse.de>
    e14808b4
migrate.c 38.1 KB