On Tue, Jun 07, 2011 at 05:27:11PM +0100, Mel Gorman wrote: > Changelog since V1 > o Return COMPACT_PARTIAL when aborting due to too many isolated > pages. As pointed out by Minchan, this is better for consistency > > Asynchronous compaction is used when promoting to huge pages. This is > all very nice but if there are a number of processes in compacting > memory, a large number of pages can be isolated. An "asynchronous" > process can stall for long periods of time as a result with a user > reporting that firefox can stall for 10s of seconds. This patch aborts > asynchronous compaction if too many pages are isolated as it's better to > fail a hugepage promotion than stall a process. > > [minchan.kim@xxxxxxxxx: Return COMPACT_PARTIAL for abort] > Reported-and-tested-by: Ury Stankevich <urykhy@xxxxxxxxx> > Signed-off-by: Mel Gorman <mgorman@xxxxxxx> Reviewed-by: Minchan Kim <minchan.kim@xxxxxxxxx> -- Kind regards Minchan Kim -- 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/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>