On Wed, 2012-05-30 at 05:41 -0400, KOSAKI Motohiro wrote: > > Yes, and we all know objects allocated in one thread are never shared > > with other threads.. the producer-consumer pattern seems fairly popular > > and will destroy your argument. > > THP also strike producer-consumer pattern. But, as far as I know, people haven't observed > significant performance degression. thus I _guessed_ performance critical producer-consumer > pattern is rare. Just guess. Not so, as long as the areas span PMDs THP can back them using huge pages, regardless of what objects live in that virtual space (or indeed if its given out as objects at all or lives on the free-lists). THP doesn't care about what lives in the virtual space, all it cares about is ranges spanning PMDs that are populated densely enough. -- 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/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: <a href