On Wed, 28 Dec 2016, Michal Hocko wrote: > I do care more about _users_ and their _experience_ than what > application _writers_ think is the best. This is the whole point > of giving the defrag tunable. madvise(MADV_HUGEPAGE) is just a hint to > the system that using transparent hugepages is _preferable_, not > mandatory. We have an option to allow stalls for those vmas to increase > the allocation success rate. We also have tunable to completely ignore > it. And we should also have an option to not stall. > The application developer who uses madvise(MADV_HUGEPAGE) is doing so for a reason. We lack the ability to defragment in the background for all users who don't want to block while allowing madvise(MADV_HUGEPAGE) users to block, as the changelog for this patch clearly indicates. Thanks. -- 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>