On Wed, 19 Dec 2012, Glauber Costa wrote: > When we are out of space in the caches, we will try to allocate a new > page. If we still fail, the page allocator will try to free pages > through direct reclaim. Which means that if an object allocation failed > we can be sure that no new pages could be given to us, even though > direct reclaim was likely invoked. Well this hits the hot allocation path with lots of additional checks that also require the touching of more cachelines. How much impact will this have? -- 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/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>