Greetings,
So, anyone on this list using OS Virtualization? I've been using OpenVZ for about 1.5 years. I also have some experience with Linux-VServer.
In my experience, if you want to do Linux on Linux, both OpenVZ and Linux-VServer offer native performance, better scalability, and higher density than VMware, Xen or KVM... although I must admit I haven't actually tried KVM yet.
If anyone has any questions about OpenVZ and/or Linux-VServer, feel free to ask. I have a couple of screencasts I've done, and interview with the OpenVZ project manager, and coming soon, an interview with the Linux-VServer project leader.
TYL,