The Xen team are pleased to announce the release of Xen 2.0, the
open-source Virtual Machine Monitor. Xen enables you to run
multiple operating systems images concurrently on the same
hardware, securely partitioning the resources of the machine
between them. Xen uses a technique called 'para-virtualization'
to achieve very low performance overhead -- typically just a few
percent relative to native. This new release provides kernel
support for Linux 2.4.27/2.6.9 and NetBSD, with FreeBSD and Plan9
to follow in the next few weeks.