[CentOS] XEN or KVM - performance/stability/security?

On 05/16/2012 02:47 PM, Luke S. Crawford wrote:
> (how are the paravirt drivers in KVM these days?  I have a server
> full of kvm guests running some ancient version of ubuntu I will be
> moving to RHEL6 shortly.)

Since RHEL guests have the virtio block drivers built-in, I never get 
around to benchmarking them against non-virtio block devices.