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what is the expected result of computer hardware virtualization with Xen?
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  • Accepted Answer

    Friday, November 15 2013, 12:12 PM - #permalink
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    I'm afraid I don't quite understand what you are asking. Can you provide a little more detail, please?

    In general, we expect that the hypervisor layer will provide a platform whereby you can start several VMs on one piece of hardware, which each VM behaving as if it were on its own machine.

    There's a talk I do regularly to discuss the basics of Xen architecture:
    http://buildacloud.org/cloudstack-collab-conference-north-america-2013/video/xen-open-source-hypervisor-designed-for-clouds-by-russell-pavlicek.html

    If you are asking about the performance of that solution, it depends very much on the workload in question, the mode selected (PV, HVM, or PVHVM), and configuration (what storage is attached and how, etc.). All virtualization has some cost in performance, but Xen performance has been found to be on a par with other virtualuzation technologies when it is configured appropriately.

    Is there something else you need to know?
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