On Wed, Mar 19, 2008 at 12:00 PM, David Alanis <canito at dalan.us> wrote: > > Would anyone like to share their experience which of the three > applications (Virtualbox, xen, VMWare) renders the most options, > optimization, user friendlyness, and performance? At work, I was called upon to set up a linux VPS system for our developers to use. I ended up using UML (user mode linux) for the virtualization. With UML, you're limited to only using linux guests (as it requires a guest kernel patch), but that wasn't a problem in my case. Thus far, I've been *very* happy with both the performance and stability of the UML system. I currently have eight guest instances running, ranging from 512MB->2048MB RAM and from 10G->200G disk. Each of these servers has between 1 and 5 developers pounding on it at a time, and I have yet to hear any complaints on performance. The host OS is Gentoo, linux-2.6.20 (with the skas3 patch), running on a Dell PowerEdge 2970 (Dual AMD Opteron 2212s, 8GB RAM). At this point, I've just been using an ubuntu image for the guests, with linux-2.6.23.14 guest kernels. -Erik