On Fri, Jul 15, 2016 at 02:09:23PM +0100, Mel Gorman wrote: > With node-lru, the locking is based on the pgdat. Previously it was > required that a pagevec drain released one zone lru_lock and acquired > another zone lru_lock on every zone change. Now, it's only necessary if > the node changes. The end-result is fewer lock release/acquires if the > pages are all on the same node but in different zones. > > Signed-off-by: Mel Gorman <mgorman@xxxxxxxxxxxxxxxxxxx> Acked-by: Minchan Kim <minchan@xxxxxxxxxx> check_move_unevictable_pages could be a candidate, too. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>