Linux and flexibility go hand in hand, and the options for virtualization are no different. KVM supports the virtualization of Linux guest operating systems – even Windows with hardware that is virtualization-aware. This article explores the architecture of the Linux KVM as well as why its tight integration with the kernel may change the way you use Linux.
today on servers or desktops i use only kvm/qemu and sometime virtualbox
performance is very good for kemu , so good that you might not notice that you are using an virtual machine
http://www.phoronix.com/scan.php?page=article&item=ubuntu_virt_benc…
Edited 2009-01-20 16:42 UTC
Sure, but the “interactive” experience is still bad in kvm/qemu.
Interactive?
– Gilboa
Yeah, what did you mean by interactive? While it does have some problems, I don’t get what you are aiming at.