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Preview: SourceForge.net: SF.net Project News: Xen

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Last Build Date: Wed, 05 Dec 2007 13:55:37 -0000

 



The Xen project has moved to xen.org !

Wed, 05 Dec 2007 13:55:37 -0000

The sourceforge web site is no longer maintained -- please visit xen.org for all your Xen needs.




Xen 2.0 Officially Released!

Fri, 05 Nov 2004 13:42:51 -0000

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.

Xen 2.0 runs on almost the entire set of modern x86 hardware
supported by Linux, and is easy to 'drop-in' to an existing Linux
installation. The new release has a lot more flexibility in how
guest OS virtual I/O devices are configured. For example, you can
configure arbitrary firewalling, bridging and routing of guest
virtual network interfaces, and use copy-on-write LVM volumes or
loopback files for storing guest OS disk images. Another new
feature is 'live migration', which allows running OS images to be
moved between nodes in a cluster without having to stop
them. Visit the Xen homepage for downloads and documentation.

http://xen.sf.net




Xen 2.0-beta

Sat, 28 Aug 2004 16:43:32 -0000

Please download from the xen-2.0.bk repo at xen.bkbits.net and test. See the project homepage and developers' mailing list for more info.




Xen 1.0 (stable) released

Wed, 01 Oct 2003 14:42:08 -0000

Xen is a virtual machine monitor for x86, which lets you run multiple
operating system images at the same time on the same PC hardware, with
unprecedented levels of performance and resource isolation. Even under
the most demanding workloads the performance overhead is just a few
percent: considerably less than alternatives such as VMware
Workstation and User Mode Linux. This makes Xen ideal for use in
providing secure virtual hosting, or even just for running multiple
OSes on a desktop machine. Home page: http://www.cl.cam.ac.uk/netos/xen

Xen requires guest operating systems to be ported to run over
it. Crucially, only the kernel needs to be ported, and all user-level
application binaries and libraries can run unmodified. We have a fully
functional port of Linux 2.4.22 running over Xen, and regularly use it
for running demanding applications like Apache, PostgreSQL and
Mozilla. Any Linux distribution should run unmodified over the ported
kernel. With assistance from Microsoft Research, we have a port of
Windows XP to Xen nearly complete, and are planning a FreeBSD 4.8 port
in the near future.

Xen is brought to you by the University of Cambridge Computer
Laboratory Systems Research Group. Visit the project homepage to find
out more, and download the project source code or the XenDemoCD, a
bootable `live iso' image that enables you to play with Xen/Linux 2.4
without needing to install it on your hard drive. The CD also contains
full source code, build tools, and benchmarks. Our SOSP paper gives an
overview of the design of Xen, and evaluates the performance against
other virtualization techniques.

Work on Xen is supported by UK EPSRC grant GR/S01894, Intel Research
Cambridge, and Microsoft Research Cambridge via an Embedded XP IFP
award.

Home page : http://www.cl.cam.ac.uk/netos/xen
SOSP paper : http://www.cl.cam.ac.uk/netos/papers/2003-xensosp.pdf