OpenStack supports many features found in libvirt. Not currently among these features is the ability to back your KVM guests with hugepages.
While this post is directed at those who have a desire to back their guests with hugepages, and therefore are familiar with them, I'm going to take a moment to explain what hugepages are. Hugepages are, as the name suggests, pages that are larger than the standard size. For example, on one machine you may have a standard page size of 4kB and a hugepage size of 2048 kB.... [More]