On 1 Mar 2011 at 18:28, Anthony G. Basile wrote: > > in HVM mode > > i386 should be fine, amd64 should be dead slow. > > In my experience, both are fine. I run hardened x86, hardened amd64 and > hardened amd64 nomultilib as domU. The host is OpenSuse 11.3. I have > both KERNEXEC and UDEREF on, no noticeable problems.
now that's interesting, does the host have/use EPT (or amd's equivalent)? > KVM is a different story, and I do see slowdown for amd64. this means that the slowdown is truly specific to some kvm/uderef interaction, not that i have an idea where to look still...
