On Mon, 2014-02-10 at 15:13 -0800, Andrew Morton wrote: > On Mon, 10 Feb 2014 12:27:44 -0500 Luiz Capitulino <lcapitulino@xxxxxxxxxx> wrote: > > > HugeTLB command-line option hugepages= allows the user to specify how many > > huge pages should be allocated at boot. On NUMA systems, this argument > > automatically distributes huge pages allocation among nodes, which can > > be undesirable. > > Grumble. "can be undesirable" is the entire reason for the entire > patchset. We need far, far more detail than can be conveyed in three > words, please! One (not so real-world) scenario that comes right to mind which can benefit for such a feature is the ability to study socket/node scaling for hugepage aware applications. Yes, we do have numactl to bind programs to resources, but I don't mind having a way of finer graining hugetlb allocations, specially if it doesn't hurt anything. Thanks, Davidlohr -- 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>