For now, at least, I'm stuck with an old version of qemu-kvm qemu-kvm-0.12.1.2
qemu is set as cache=none I see that in libvirt and I see that doing a ps on qemu-kvm. Yet, using "vmtouch" I see that (where ID is the real instance ID), to the matching disk: /var/lib/nova/instances/'id'/disk it's using 29 GB of cache! Why would that be? I could ask vmtouch to pull it out of cache, but I'm concerned whatever put it there in the first place, will put it back later.. I see this issue on multiple compute notes in two environments., I don't see this issue on the third environment. (I'm using OpenStack IceHouse and also see /var/lib/nova/instances/_base is being cached ) Unfortunately, with all the caching, we end up going to swap...as opposed to taking items out of cache. Thanks!
