On Tue, Nov 14, 2017 at 11:03:30AM -0700, Blair Bethwaite wrote:
On 14 November 2017 at 10:56, Daniel P. Berrange <berrange@redhat.com> wrote:
Oh well THP usage inside the guest is then not really anything todo with virt, just a regular Linux questions, so not sure libvirt is the best place to ask.
True, I just hoped you or one of the other devs might have some insight on reclaim behaviour that would provide a clue. I guess I'll try a linux list.
Any comment on this (which is virt related): (1) a related and possibly dumb question: in the case of a high-performance KVM where the guest is hugepage backed and pinned in host memory anyway, why do we still have a table based resolution for guest physical to host virtual address translation - couldn't this just be done by offset?
I don't know enough about KVM memory management to answer that. You probably need to ask on the KVM mailing list to get the expert answer. Regards, Daniel -- |: https://berrange.com -o- https://www.flickr.com/photos/dberrange :| |: https://libvirt.org -o- https://fstop138.berrange.com :| |: https://entangle-photo.org -o- https://www.instagram.com/dberrange :|