KVM Virtualization or Kernel-based Virtual Machine (KVM) technology has been around from 2006. They merged it in to the mainline Linux kernel way back in 2007. KVM is a type-1 (bare metal) hypervisor. It shares control over the physical hardware along with the Linux kernel allowing the guest VMs to run on bare metal. According to IBM, the TCO of KVM virtualization as compared to VMWare...
The Definitive Guide to KVM Virtualization
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