KVM vs. Xen vs. VMware. Is it a Hypervisor War?

For years, Xen and VMware have been the virtualization technologies of choice for open source operating systems vendors. With Red Hat’s acquisition of Qumranet yesterday and its competing Kernel-based Virtual Machine (KVM) open source hypervisor the winds of change may be blowing, or not.

While Red Hat is now betting at least $107 million that KVM is the future of virtualization, other vendors in the open source virtualization space aren’t so sure.