On Fri, Mar 15, 2013 at 08:12:15AM -0600, Tod Hansmann wrote: > What's your favorite VM Server thingamajig? Why? What else might you > recommend? How do you manage it?
Lots of replies in the thread, and I haven't read them all, so apologies if this has already been mentioned. KVM is solid for virtual machines if you wish to run the Linux kernel. But, if you need high density and maximum performance, you should be looking at containers rather than VMs. I would personally recommend LXC if using Debian/Ubuntu with cgroups, or OpenVZ if on the RH-side of things. In my testing and troubleshooting, I can easily get twice the density AND twice the performance using containers over VMs. The big drawback, of course, is sticking to Linux kernels, and losing the ability to virtualize non-Linux kernel, such as Windows. However, you can run both a container and VM hypervisor on one box, if you need that homogeny. -- . o . o . o . . o o . . . o . . . o . o o o . o . o o . . o o o o . o . . o o o o . o o o
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