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	Xen - Wikipedia, the free encyclopedia
		Xen is an open-source virtual machine monitor for x86 that enables the execution of multiple guest operating systems on the same computer hardware.
		Virtual machines are often used by IBM, HP, and others on mainframes and servers.
		Xen's motivation differs from that of Denali in that it is intended to run a moderate number of full-featured operating systems, rather than a large number of specialised, lightweight ones.
	en.wikipedia.org /wiki/Xen_(virtual_machine_monitor) (1177 words)

	Download Xen 2.0.7 for Linux - Xen is a virtual machine monitor for x86 that supports execution of multiple guest ...
		Xen is a virtual machine monitor for x86 that supports execution of multiple guest operating systems in isolated environments.
		Firstly, virtual machines must be isolated from one another: it is not acceptable for the execution of one to adversely affect the performance of another.
		Xen is a virtual machine monitor for x86 that supports execution of multiple guest operating systems with unprecedented levels of performance and resource isolation.
	linux.softpedia.com /get/Utilities/Xen-2333.shtml (475 words)

	Introduction to the Xen Virtual Machine
		The Xen VMM [1] (virtual machine monitor) is an open-source project that is being developed in the computer laboratory of the University of Cambridge, UK.
		Xen with Intel VT or Xen with AMD Pacifica would be competitive with if not superior to other virtualization methods, as well as to native operation.
		Xen itself is called a hypervisor because it operates at a higher privilege level than the supervisor code of the guest operating systems that it hosts.
	www.linuxjournal.com /node/8540/print (2226 words)

	Research - Systems & Networking - Xen Virtual Machine Monitor
		In another project, Intel researchers are collaborating with the University of Cambridge to develop a virtual machine monitor called Xen.
		Xen also enables peripheral drivers to be run in a separate virtual machine to the operating system.
		This provides a high level of robustness against device driver failures: instead of a complete machine crash on the failure of a device driver, the failure is isolated to the virtual machine, enabling a new virtual machine to be started with an intact device driver.
	www.intel.com /research/xenmonitor.htm (415 words)

	Linux: Xen 2.0 Released (Site not responding. Last check: 2007-10-19)
		Xen 2.0 features improved hardware support and the ability to 'live migrate' running virtual machines across physical hosts.
		Xen enables you to run multiple operating systems images concurrently on the same hardware, securely partitioning the resources of the machine between them.
		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.
	kerneltrap.org /node/4167/print (389 words)

	Automating Xen Virtual Machine Deployment (Site not responding. Last check: 2007-10-19)
		Xen has become one of the most popular virtualisation platforms over the last year, although not such a young project, it is now rapidly gaining acceptance in the corporate world as a valuable alternative to VMWare.
		Some Virtual machine vendors have their own tools to deploy and manage virtual machine, Apart from the vendor lock-in to that specific virtual machine platform, it requires the administrators to learn yet another platform that they need to understand and manage, something we wanted to prevent.
		Xen has become one of the most popular virtualisation platforms during the last 6 months, although not such a young project, it is now gaining acceptance in the corporate world as a valuable alternative to VMWare.
	howto.x-tend.be /AutomatingVirtualMachineDeployment (4640 words)

	Xen, the Virtual Machine Monitor
		Xen, a free software hypervisor, is poised to deliver these benefits, because it outperforms existing hypervisors by an order of magnitude while providing guaranteed service levels to each guest OS.
		Xen also offers a capability for live VM migration, in which a running guest OS, in its virtual machine, is moved to a second machine in a very short time.
		Xen moves the level of infrastructure up above the basic hardware, by providing a common, low-level, high speed set of execution primitives that can be used to provide a dynamic and responsive computing environment.
	www.intelligentedu.com /xen_the_virtual_machine_monitor.html (2414 words)

	xen - Define Your World of xen by the Free Online Dictionary, Thesaurus and Encyclopedia. (Site not responding. Last check: 2007-10-19)
		The Xen project is an open-source hypervisor developed by the Xen team at the University of Cambridge...
		Xen is a virtual machine monitor for x86 hardware (runs only on i686-class CPUs), which supports running multiple guests operating systems on a single machine.
		NetBSD/xen is a port of NetBSD to the Xen virtual machine monitor.
	www.valuesponsor.com /encyclopedia/xen- (287 words)

	Virtual Iron Software: News & Events: Virtual Iron to Expand Data Center Management Capabilities to Support ...
		The Xen virtual machine monitor management module will be included as a standard part of the Virtual Iron platform and the company plans to release the module under an open source license.
		Virtual Iron’s software will also provide users with seamless migration from Xen virtual servers to the Virtual Iron platform for enterprise applications that require scalability, flexibility and agility.
		Virtual Iron is the only solution that enables enterprises to combine the power of data center virtualization, automation and dynamic resource allocation technologies with policy-based system management in an integrated, easy-to-use, and easy-to-deploy system.
	www.virtualiron.com /news_events/releaseDate-8-8-05.cfm (673 words)

	Xen virtual machine monitor (tummy.com, ltd. Journal Entry)
		Xen is working very well, and has lots of features which help out in an environment where you have many machines.
		The way Xen works is that you boot a machine monitor, and have that monitor load your "xen0" privileged kernel.
		Xen also includes a "Balloon" driver which is supposed to allow you to shrink or grow the memory usage of a running virtual machine, but I've never seen that work.
	www.tummy.com /journals/entries/jafo_20050304_164322 (733 words)

	LWN: A look at Xen
		The Xen virtual machine monitor is starting to pop up all over the place, or at least in several Linux distributions.
		Xen is a "hypervisor," or virtual machine monitor, which can execute several virtual machines on a single piece of hardware.
		Xen requires that a OS be ported to run on Xen's hypervisor, rather than attempting to emulate an x86 virtual machine completely as VMware Workstation does.
	lwn.net /Articles/139964 (2216 words)

	Machine Virtual Links
		Xen is a virtual machine monitor for x86 that supports execution of...
		Virtual machines are often used in the implementation of portable executors for high-level languages.
		Brad Abrams : Is the CLR a Virtual Machine?
	www.profitmachine.us /machines/Machine-Virtual.php (2289 words)

	Introduction to the Xen Virtual Machine \| Linux Journal (Site not responding. Last check: 2007-10-19)
		The Xen VMM (virtual machine monitor) is an open-source project that is being developed in the computer laboratory of the University of Cambridge, UK.
		Full virtualization has been done with some hardware emulators; one of the popular open-source projects is the Bochs IA-32 Emulator.
		Xen 3.0 and the Art of Virtualization, section 4.1 in OLS 2005 proceedings).
	www.linuxjournal.com /article/8540 (3338 words)

	Virtual Iron to manage Xen open source virtual machine monitor - Network World
		Virtual Iron is branching out with the announcement that it will manage the open source virtual machine monitor.
		The Xen virtual machine monitor management module will be included as a standard feature of the Virtual Iron management software.
		Xen was developed at the University of Cambridge Computer Laboratory in the U.K. It was commercialized by XenSource, which was founded by the creators of the Xen hypervisor to provide support and service for enterprises adopting virtualization technology.
	www.networkworld.com /newsletters/servers/2005/0808server2.html?rl (681 words)

	Computer Laboratory - Xen virtual machine monitor
		Xen is a virtual machine monitor for x86 that supports execution of multiple guest operating systems with unprecedented levels of
		Mailing lists and archives: Join xen-announce for project news, xen-users to discuss installing and using Xen, and xen-devel to discuss Xen development topics and for bug reports.
		XenoServers : the project Xen was originally built for: "building an Open Infrastructure for Global Distributed Computing".
	www.cl.cam.ac.uk /Research/SRG/netos/xen (349 words)

	XENfr.org - Xen virtual machine monitor - Communauté francophone : compareVirtual
		Virtual PC is a powerful software virtualization solution that allows you to run multiple PC-based operating systems simultaneously on one workstation, providing a safety net to maintain compatibility with legacy applications while you migrate to a new operating system.
		It is virtual, it has no separate monitor, mouse, keyboard or hard drive.
		Disk storage for the virtual machine is entirely contained inside a single file on your physical machine.
	xenfr.org /tiki-index.php?page=compareVirtual (1198 words)

	Bug#235731: marked as done (ITP: xen -- a Virtual Machine Monitor for i386)
		Xen enables multiple operating system images to execute concurrently on the same hardware with very low performance overhead --- much lower than commercial offerings for the same x86 platform.
		Package: libxc-dev Architecture: i386 Depends: libxc1.2 Description: development files for the control library for XEN Users wishing to develop their own tools for interfaces to the underlying XEN kernel should install this package.
		Package: kernel-patch-xen Architecture: all Depends: ${kpatch:Depends} Description: patch to linux for the XEN sub-arch This kernel patch modifies linux, so that it can run inside XEN, a Virtual Machine Monitor.
	lists.debian.org /debian-wnpp/2004/03/msg00697.html (568 words)

	XenSource eyes VMware with open source-based product - Network World
		Xen 3.0 brings a number of updates, including support for as many as 32-way symmetric multiprocessor virtual machines and expanded memory support for workloads with large memory demands.
		The new version also supports Intel's VT virtualization technology and is expected to support Advanced Micro Devices' (AMD) hardware-based virtualization technology early next year, which will enhance CPU and memory virtualization and will enable Xen to run under all operating systems, Crosby says.
		Xen backers say the software provides better performance at a lower cost than VMware, because it virtualizes operating systems at the kernel.
	www.networkworld.com /news/2005/120505-xensource.html?page=1 (635 words)

	Intel Research People: Rolf Neugebauer (Site not responding. Last check: 2007-10-19)
		Xen is a software layer running underneath traditional operating systems, providing idealised hardware abstractions to guest operating systems.
		As an alternative to dedicated/specialized processors, we are exploring the concept of using virtual channel processors to isolate particular subsystems of a typical OS kernel.
		Our focus is on virtualizing the I/O subsystems and using the simultaneous multi-threading features of modern processors to address latency issues and provide resource isolation.
	www.cambridge.intel-research.net /~rneugeba (351 words)

	Measuring CPU Overhead for I/O Processing in the Xen Virtual Machine Monitor from Hewlett-Packard White Papers at ZDNet ... (Site not responding. Last check: 2007-10-19)
		Measuring CPU Overhead for I/O Processing in the Xen Virtual Machine Monitor from Hewlett-Packard White Papers at ZDNet UK Don't Miss:
		Virtual Machine Monitors (VMMs) are gaining popularity in enterprise environments as a software-based solution for building shared hardware infrastructures via virtualization.
		In this paper, using the Xen VMM, the authors present a light weight monitoring system for measuring the CPU usage of different virtual machines including the CPU overhead in the device driver domain caused by I/O processing on behalf of a particular virtual machine.
	whitepapers.zdnet.co.uk /0,39025945,60159424p,00.htm (142 words)

	Re: Xen Virtual Machine Monitor
		It runs in ring 0 with the guest os software running in ring 1 and application software running in ring 3..
		That means that Openbsd would have to be ported to Xen, not the other way around.
		The creators of Xen say porting an OS to Xen is not difficult and the performance of Xen is close to that of the os running natively.
	www.monkey.org /openbsd/archive/misc/0411/msg00864.html (136 words)

	Xen the Virtual Machine Monitor \| T. Gales and Associates Inc. (Site not responding. Last check: 2007-10-19)
		Xen partitions an Intel '86' architecture machine to support the concurrent execution of multiple operating systems.
		Good isolation to prevent one instance of an O/S to adversely affect another.
		Good performance by keeping the overhead introduced by virtualization to a minimum.
	www.tgaconnect.com /web/xen (87 words)

	CiteULike: Measuring CPU Overhead for I/O Processing in the Xen Virtual Machine Monitor (Site not responding. Last check: 2007-10-19)
		Measuring CPU Overhead for I/O Processing in the Xen Virtual Machine Monitor
		In this work, using the Xen VMM, we present a light weight monitoring system for measuring the CPU usage of different virtual machines including the CPU overhead in the device driver domain caused by I/O processing on behalf of a particular virtual machine.
		kernel migration no-tag simulator virtualization vm vmware xen
	www.citeulike.org /user/movement/article/465497 (176 words)

	Xen Virtual Machine Notes
		Xen is a virtual machine monitor for x86 architecture developed by Computer Laboratory, University of Cambridge.
		This is unofficial documentation for xen-unstable (going to be version 2.0), based on my attempts to use xen and conversations happening on
		Let me know of any mistakes/comments by sending email to sgoyal at cs dot utah dot edu.
	www.cs.utah.edu /~sgoyal/xen (76 words)

	Xen, the virtual machine monitor
		Today, for every dollar spent on computing hardware, as many as five dollars are spent on lifetime costs—support, maintenance, and software licenses.
		But virtualization offers many, as yet, unrealized benefits—including development, staging and testing, dynamic provisioning, real-time migration, high availability and load balancing.
		Moreover, it provides a simple model for dealing with reliability and servicing—if the server fails, only the single application it hosts will fail.
	www.freesoftwaremagazine.com /free_issues/issue_05/focus-xen (1055 words)

	NetBSD/xen
		A short Xen 2.0 Howto has been made available.
		Manuel Bouyer has just merged the bouyer-xen2 branch into NetBSD -current; this means that support for Xen 2.0 (both in privileged and unprivileged mode) will be available in NetBSD 3.0.
		NetBSD 2.0 released with support for 48 architectures.
	www.netbsd.org /Ports/xen (217 words)

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