Measuring Performance on Hyper-V
source: http://technet.microsoft.com/en-us/library/cc768535(BTS.10).aspx
While most of the principles of analyzing performance of a guest operating system installed on a Hyper-V virtual machine performance are the same as analyzing the performance of an operating system installed on a physical machine, many of the collection methods are different. The following considerations are significant when evaluating performance of your BizTalk Server solution running on a guest operating system installed on a Hyper-V virtual machine.