Transparent HugepageTransparent Hugepage SupportSupport Red Hat Inc. Andrea Arcangeli aarcange at redhat.com KVM Forum 2010 Boston 9 Aug 2010 Copyright © 2010 Red Hat Inc. Benefit of hugepagesBenefit of hugepages ➢ Enlarge TLB size ➢ TLB is separate for 4k and 2m pages ➢ Speed up TLB miss ➢ Need 3 accesses to memory instead of 4 to refill the TLB ➢ Faster to allocate ➢ Initial page fault huge spe