In recent weeks there have been a lot of AMD Linux benchmarks of the latest-generation Bulldozer processor, namely the eight-core FX-8150. The latest unique look at the first-generation Bulldozer CPU under Linux is the KVM virtualization performance...
There is KVM for Illumos (SunOS) , available in Openindiana 151a , (Opensolaris free software continuation)
but Joyent's KVM implementation uses only Intel CPUs and AMD support is not written yet.