• Mel Gorman's avatar
    mm: compaction: Move migration fail/success stats to migrate.c · 5647bc29
    Mel Gorman authored
    The compact_pages_moved and compact_pagemigrate_failed events are
    convenient for determining if compaction is active and to what
    degree migration is succeeding but it's at the wrong level. Other
    users of migration may also want to know if migration is working
    properly and this will be particularly true for any automated
    NUMA migration. This patch moves the counters down to migration
    with the new events called pgmigrate_success and pgmigrate_fail.
    The compact_blocks_moved counter is removed because while it was
    useful for debugging initially, it's worthless now as no meaningful
    conclusions can be drawn from its value.
    Signed-off-by: default avatarMel Gorman <mgorman@suse.de>
    Reviewed-by: default avatarRik van Riel <riel@redhat.com>
    5647bc29
migrate.c 33.6 KB