(2013/05/13 17:12), Mel Gorman wrote: > Simplistically, the anon and file LRU lists are scanned proportionally > depending on the value of vm.swappiness although there are other factors > taken into account by get_scan_count(). The patch "mm: vmscan: Limit > the number of pages kswapd reclaims" limits the number of pages kswapd > reclaims but it breaks this proportional scanning and may evenly shrink > anon/file LRUs regardless of vm.swappiness. > > This patch preserves the proportional scanning and reclaim. It does mean > that kswapd will reclaim more than requested but the number of pages will > be related to the high watermark. > > [[email protected]: Correct proportional reclaim for memcg and simplify] > [[email protected]: Recalculate scan based on target] > [[email protected]: Account for already scanned pages properly] > Signed-off-by: Mel Gorman <[email protected]> > Acked-by: Rik van Riel <[email protected]>
Acked-by: KAMEZAWA Hiroyuki <[email protected]> -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
