Processor topology: Inside Hyper-V virtual machines

A number of people have noticed that they can create a virtual machine with four virtual processors, and then successfully run Windows XP on it and have it utilize all four virtual processors.  This strikes them as odd, because Windows XP supposedly only supports the use of one or two processors in a computer. To […]

A number of people have noticed that they can create a virtual machine with four virtual processors, and then successfully run Windows XP on it and have it utilize all four virtual processors.  This strikes them as odd, because Windows XP supposedly only supports the use of one or two processors in a computer. To understand what is happening we need to talk about processor topology.

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