Chris: > > cpu family : 15 > ^^ means that you have a Rev F (cpu_family 15 == 0xf in hex). That is good to know. Thanks for the info. I am actually quite surprised this processor does not have the constant time stamp counter because the RHEL virtualization guide states it is a feature of modern CPUs. The Opteron is a modern CPU to me. Is there a listing of CPUs that have it? I tried searching in Google to no avail. Thanks, Neil -- Neil Aggarwal, (281)846-8957, www.JAMMConsulting.com Will your e-commerce site go offline if you have a DB server failure, fiber cut, flood, fire, or other disaster? If so, ask about our geographically redundant database system. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html