On Mon, 2010-06-14 at 22:28 +0530, Balbir Singh wrote: > If you've got duplicate pages and you know > that they are duplicated and can be retrieved at a lower cost, why > wouldn't we go after them first? I agree with this in theory. But, the guest lacks the information about what is truly duplicated and what the costs are for itself and/or the host to recreate it. "Unmapped page cache" may be the best proxy that we have at the moment for "easy to recreate", but I think it's still too poor a match to make these patches useful. -- Dave -- 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>