> On Fri, Jul 16, 2010 at 07:13:31PM +0900, KOSAKI Motohiro wrote: > > Currently, mem_cgroup_shrink_node_zone() initialize sc.nr_to_reclaim as 0. > > It mean shrink_zone() only scan 32 pages and immediately return even if > > it doesn't reclaim any pages. > > > > Do you mean it immediately returns once one page is reclaimed? i.e. this > check > > if (nr_reclaimed >= nr_to_reclaim && priority < DEF_PRIORITY) > break; Strictly speaking, once SWAP_CLUSTER_MAX batch is scanned. no need to reclaim pages at all. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>