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Topic: Comparison of virtual machines

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	Webopedia: All About Hypervisors
		Storage virtualization is the amalgamation of multiple network storage devices into what appears to be a single storage unit, which is somewhat of the opposite effect of partitioning a hard drive.
		System virtualization is a technology often used to consolidate systems, workloads and operating environments by using a single physical system to create multiple virtual systems.
		Virtualization technology is enjoying a period of explosive growth at the moment, and increasing numbers of enterprises are becoming virtualization converts.
	www.webopedia.com /quick_ref/hypervisor.asp (1220 words)

	Introduction to virtualization - OpenVZ Wiki
		Virtualization is a framework or methodology of dividing the resources of a computer into multiple execution environments.
		Virtualization techniques create multiple isolated partitions — Virtual Machines (VM) or Virtual Environments (VEs) — on a single physical server.
		Virtual Environments are usually also much simpler to administer as all of them can be accessed and administered from the host system.
	wiki.openvz.org /Introduction_to_virtualization (471 words)

	Virtual Strategy Magazine - Book Review: Virtual Machines: Versatile Platforms for Systems and Processes
		Virtual machines are classified into different categories and the pro and cons of various virtualization approaches are discussed.
		They introduce and classify virtual machines from a process and system point of view: process virtual machines and system virtual machines, and explain interpretation and binary translation as two kinds of emulation techniques, emulation being the primary mechanism used in the implementation of virtual machines.
		Virtual machine taxonomy is classified based on whether the virtualizing software is placed at the application binary interface (process virtual machine) or between the underlying hardware machine and conventional software (system virtual machine).
	www.virtual-strategy.com /article/articleview/1160/1/2 (1972 words)

	Virtual Machines as Special class of Operating Systems
		Virtualization, an emerging technology which is garnering growing interest from corporate customers, allows a server to run multiple instances of an operating system.
		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.
		Virtualizing Linux with Xen: Xen is a para-virtualization technology available for the Linux kernel that can offer users a chance to enclose and test new upgrades as if running them in the existing environment, but without the worries of disturbing the original system.
	www.softpanorama.org /VM/index.shtml (14025 words)

	Altaway Technologies, Inc : Mainframe-class virtual machines
		Virtual machines are being used in testing, software development, server virtualization, legacy applications, and many more because they provide a hassle free platform and allow companies to run various applications without having to invest in expensive hardware.
		The use of virtual infrastructure accelerates installation and upgrades without the usual delays and downtime associated with physical dedicated servers.
		Application crashes or data corruption occurring in a given virtual machine have no effect on the continuing operation of other virtual machines.
	www.altaway.com /bh_comparison.html (174 words)

	Notebook Computer Comparison (Site not responding. Last check: 2007-11-03)
		Comparison of computer shells - A shell is a software program which is used to interact with the userland and subsequently the kernel of an operating system.
		This comparison is of shells which use the command line to serve their purpose, rather than a graphical interface.
		Comparison of Application Virtual Machines - This comparison of Application Virtual Machines lists some of the common software virtual machines that implement the concept of Application Virtualization, typically for the purpose allowing application binaries to be portably run on many different computer architectures and operating systems.
	laptops.vvvvvv3.com /notebookcomputercomparison.html (617 words)

	Sewing Machines, Embroidery Sewing Machines - ConsumerSearch.com
		These are the simplest type of sewing machine in terms of build, and if your mother had a sewing machine, it was a mechanical machine.
		They are missing helpful features now found on electronic machines, such as a needle up/down feature, which allows you to raise or lower the needle with the push of a button instead of cranking around a fly wheel.
		Even so, the basic features on mechanical sewing machines are enough for students, casual users or anyone else not wanting to spend $400 or more for an entry-level electronic sewing machine; in fact, review say some expensive "basic" machines are overrated.
	www.consumersearch.com /www/house_and_home/sewing-machines/review.html (3021 words)

	Techworld.com - OS and Servers Insight - Managing virtual machines
		But as virtual machine technology moves out of development labs and into production server environments in large numbers, some administrators are finding that the growth of virtual servers is getting ahead of the tools available to effectively manage them.
		For example, a virtual machine may be running at 100 per cent utilisation but using only a fraction of the underlying server's resources.
		Other tasks include optimising the mix of virtual machines that should reside on each physical server to achieve the best possible performance; automating virtual machine provisioning, load balancing, patch management, configuration management and fail-over; and enabling policy-based orchestration to automatically trigger the appropriate responses to events.
	www.techworld.com /opsys/features/index.cfm?featureid=2569 (1823 words)

	[No title]
		A recent film ignited a new generation of armchair epistemologists when it proposed that we could be living inside an elaborate computer simulation.
		Virtual machine software can fool an operating system into thinking it's running on its own hardware, when in reality it's simply mooching off unused CPU cycles and RAM.
		Since the OS is running on its native platform, no emulation is necessary; virtualization allows it to run with little cost to CPU performance.
	arstechnica.com /reviews/004/software/virtual-machines/vm-1.html (906 words)

	Project Ideas
		Although virtual machines offer great flexibility and power, virtualization comes at a price that varies greatly with the technology.
		Instead, one may use virtual machines on an existing cluster to create the needed computing environment on the fly.
		The system would pick an unused machine in the cluster, establish a virtual machine, install the software, and then inform the user of the machine and port to login to.
	www.nd.edu /~dthain/courses/cse542/fall2005/ideas.html (1402 words)

	Sewing Machines Reviews
		Machine embroidery is an expensive hobby, but those who've tried it are quickly addicted.
		The best sewing machine reviews come from sources that test machines in a methodical way, using a well defined set of criteria to differentiate performance from machine to machine.
		In every review, experts agree that test driving machines is a must, and although Consumer Reports' or Threads' favorite sewing machine may not ultimately be the machine you buy, these comparative reviews, based on solid testing practices, help us shorten the list.
	www.consumersearch.com /www/house_and_home/sewing-machines/index.html (1002 words)

	Virtual-Server Face-Off
		We tested both GSX and Virtual Server and we found that the performance and consolidation ratio was less than half of ESX Server with GSX at 6 to 1 and Virtual Server at 4 to 1.
		Virtual server I found out, certainly is no match for ESX, where you don't have to be bothered with multi-million lines of Microsoft code that does not always work the way it is supposed to do, and just takes up valuable memory.
		One key problem with Virtual server is the constant level of patches that need applying, having to reboot your host OS because IE requires a security patch is a serious issue when you are hosting multiple VMs, especially if the VMs themselves are not running Windows.
	www.windowsitpro.com /Article/ArticleID/45253/45253.html (2638 words)

	broadband help » Forums » Tech and Talk » Software » [Poll] Which Software emulation Virtual ...
		I was reading a website on the Comparison of virtual machines.
		Please note I did not ask which VMs in the application virtualization sense as the Java Virtual Machine or Parrot virtual machine..
		Virtual PC 2004 allows you make make as many differential drives (snapshots) as you like.
	www.dslreports.com /forum/remark,16655707~mode=flat (525 words)

	Qemu - DSL Wiki
		This is accomplished by running user mode and virtual 8086 mode code directly on the host computers CPU, and using processor and peripheral emulation only for kernel mode and real mode code.
		The virtual machine will have audio support and use the systems clock to run in "real time." Note that one could also replace the -cdrom linux.iso parameter with -cdrom /dev/cdrom or whatever ones CD-ROM device is, and physically boot from installation medium and install to the image specified after -hda, in this case c.img.
		While a virtual machine is running, press Ctrl-Alt-2 to access the "QEMU console", which lets one control the virtual machine (for example, changing disk images, rebooting, quitting QEMU, etc.) and Ctrl-Alt-1 to switch back to your emulation.
	www.damnsmalllinux.org /wiki/index.php/Qemu (766 words)

	White Papers
		Although these two competing technologies share some common aims the objectives of the virtual machine designs are significantly different.
		In particular, the ease with which embedded systems might use samll-footprint versions of these virtual machines depends on detailed properties of the virtual machine definitions.
		The compiler is available in the public domain, and facilitates comparisons to be made both at compile time and at runtime.
	docs.msdnaa.net /ark/Webfiles/whitepapers.htm (1528 words)

	91.540 Topics in Programming Languages and Compilers
		"The Virtual Machine of Lua 5.0" by Roberto Ierusalimschy,.pdf (skim): Slides from a presentation on 2003 of the changes between the Lua 4.0.1 virtual machine and the Lua 5.0 virtual machine
		Read Chapter 3 "The Structure of the Java Virtual Machine" Browse the rest of the book as you have time, or consider it as a resource when needed.
		The dotgnu page seems to indivate that they convert CLI to a different virtual machine http://www.southern-storm.com.au/doc/cvm/index.html, still stack-based and then interpret that code.
	www.cs.uml.edu /~dimock/courses/540-S2004/readings.html (1447 words)

	We also run our own independent brokerage which is linked to a number of international networks. (Site not responding. Last check: 2007-11-03)
		Series server that holds brokerage comparison 17 virtual machines, 10 of which are Linux..
		Corporations may be brokerage comparison rewarded or hurt by these policies, drawing them into the policy debate.
		Lime Brokerage LLC is a technologically advanced brokerage firm based in New York City brokerage firm forex that caters to a diverse and sophisticated customer base..Mac by splitting hippo turtle tsunami the tag document..
	mending52.xoompages.com /brokerage-comparison.html (1079 words)

	Virtual PC vs VMWare (Site not responding. Last check: 2007-11-03)
		Jonathan has struggled with Virtual PC on this Dell Laptop and there are some other grumblings out there on the Internet.
		My Virtual Machines started to lag in speed and then all of the sudden, I started getting a 2-3 second pause about every 10 seconds when using VPC....very frustruating.
		I still think Virtual PC is a good product, but my demo yesterday was done using VMWare and I think I'll be using it in the future.
	dallas.sark.com /SarkBlog/mholdorf/archive/2006/02/08/2467.aspx (504 words)

	[No title]
		To improve the performance and manageability of network platforms based on virtual machines, this white paper proposes taking some service components that currently run across all clients—security, resource management, and code optimization—and assigning those tasks to enterprise-wide network servers, recasting the VM network in the mold of a distributed network.
		This white paper shows you the fundamentals of a virtual machine and gives you the code to develop a simple virtual machine yourself.
		This well-rounded background on virtual machines provides a history of the development of the execution environment, the current state of the art of virtual machine architecture, and what the future may hold.
	www.extremetech.com /category2/0,1695,12705,00.asp (612 words)

	The Volano Report: Which Java platform is fastest, most scalable? A JavaWorld exclusive! - Java World
		Volano customers can and do switch overnight from one Java virtual machine to another -- or even from one operating system to another -- in order to gain the best performance or network scalability from their Java applications.
		IBM's Java virtual machine for Windows NT is a remarkable 20 percent faster than the alternatives from Microsoft and Sun.
		The operating system was rebooted before each set of tests for a particular Java virtual machine, and the first test result was discarded.
	www.javaworld.com /javaworld/jw-03-1999/jw-03-volanomark.html (1114 words)

	Virtual Slot Machines - About Slot Machines - Slots History (Site not responding. Last check: 2007-11-03)
		When it comes to the modern slot machine, the man who is given all the credit is Charles Fey, a German Immigrant mechanic who lived in San Francisco in 1989.
		Fey rented his machines to saloons on a 50-50 split in an attempt to keep his invention secret.
		It was Mills who came up with the symbols that have become the standards for slot machines for the world over.
	www.virtual-slot-machines.com /about_slots.html (240 words)

	NEW! Virtual Advisor and Product Comparison
		All of the information you could ever need for choosing your next coffee maker, espresso machine and many other products.
		Answer questions from the Virtual Advisor to narrow down your options by mating machines to your preferences.
		Come back soon - we are upgrading to an even more powerful version of our virtual advisor and product comparator.
	www.zaccardis.com /virtual-advisor.html (202 words)

	Macworld: First Look: Living in a Parallels universe, Page 1
		I experienced numerous kernel panics, unprompted restarts of my Mac mini itself (not just the virtual machine), and cases where a given VM would not work after a crash and restart.
		Select File: New Virtual Machine, and then follow the prompts—you’ll need to select Windows as the OS and Windows XP as the version from two drop-down menus along the way.
		Once the install completes, your virtual machine will restart, and soon, you’ll be seeing Windows XP running side-by-side with OS X. The final thing you’ll need to do is to install the Parallels Tools.
	www.macworld.com /2006/04/firstlooks/parallelsfl/index.php (1788 words)

	Schedule Of Presentations 2004
		Lars holds a MS degree in Computer Science and is inventor on numerous patents within virtual machine technology.
		Bio George Bosworth is a CLR Architect with Microsoft and formerly architect of the Digitalk Smalltalk virtual machines.
		This is a very complex machine and provides many knobs to turn to tune the Collector to solve problems when object creation does not fit the normally expected patterns.
	www.whysmalltalk.com /Smalltalk_Solutions/sts2004/sts2004.htm (7461 words)

	Which VMware Server Product is Right for You? - VMware (Site not responding. Last check: 2007-11-03)
		Free virtualization software for partitioning a physical host server into multiple virtual machines
		Virtualization platform with enterprise-class performance, high availability, manageability and security
		Yes (only virtual machines on the same host)
	www.vmware.com /products/server_comp.html (138 words)

	Industry Newsletters (Site not responding. Last check: 2007-11-03)
		Virtual Desktop Infrastructure (VDI) – remote access to VC-managed ESX environments
		Hypervisors (software that creates virtual hardware than runs directly on physical hardware)
		Parallel Virtual Machine (network of heterogeneous machines used as a single distributed parallel processor)
	home.comcast.net /~mike.dutch/virtualization.html (124 words)

	Servlets.com Weblog: March 2002 Archives
		The big downside is that ties me to home, and some days I like to visit and work with other work-at-home friends at their place.
		I'm thinking now about what Brian Jepson said and using either VMWare or Virtual PC to set up a virtual copy of Windows XP on top of my Windows 2000 laptop.
		When I transferred the MT data from the staging machine to the production machine, I could no longer login, and I had to recreate the configuration on the live box.
	www.servlets.com /blog/archives/2002_03.html (3405 words)

	A Test of Java Virtual Machine Performance
		The two virtual machines are essentially two different just-in-time compilers (JITs) that interface with the same runtime system.
		As used on this web site, the terms Java virtual machine or Java VM mean a virtual machine for the Java platform.
		Unless otherwise licensed, code in all technical manuals herein (including articles, FAQs, samples) is provided under this License.
	java.sun.com /developer/technicalArticles/Programming/JVMPerf (2778 words)

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