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

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Chapter 7. CPU Optimization

A lot of information passes through the CPU, whether it's virtualized or not. When you install a hypervisor, it carves up the physical CPU into virtual CPUs. With the advent of hyper-threading, the number of vCPUs conceptually doubles. In addition, in virtualization, you can overcommit CPU resources to multiple virtual machines. In this chapter we will cover:

  • XenDesktop nugget
  • Intel and AMD virtualization technology
  • CPU virtualization
  • VMware virtual CPUs
  • XenServer virtual CPUs
  • Hyper-V virtual CPUs

XenDesktop® nugget

If you use the sizing spreadsheet calculator you shouldn't need to customize or change any CPU resource allocations on your virtual machines. You should be able to get good performance by allowing the hypervisor ...

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