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Optimizing Citrix® XenDesktop® for High Performance by Craig Thomas Ellrod

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Hyper-V Tools

In terms of tools, Hyper-V uses a Windows server virtualization feature called Enlightened I/O. Enlightened I/O is the performance tweak analogous to hardware-assisted virtualization integration used in VMware and XenServer. Enlightened I/O is a virtualization technique that is aware of high-level protocols that can access the VMBus directly, bypassing any device emulation layer. This requires that the hypervisor and virtual machine be aware of each other so that the virtual machine can take advantage of accessing the VMbus directly.

Microsoft does provide similar performance-enhancing ability through what they call Enlightened I/O. The Enlightened I/O and the Hyper-V-aware kernel are turned on by installing the Hyper-V Integration ...

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