A new whitepaper detailing high performance SQL workloads running in Hyper-V R2 virtual machines. The paper can be downloaded here... Below are a few highlights/examples from the paper.
Figure 3: I/O and disk latency for dedicated pass-through disks versus VHDs
The results of this test are summarized as follows:
Figure 4: Multi-Instance throughput: native instances versus virtual instances (16 cores)
Taylor Brown Hyper-V Enterprise Deployment Team firstname.lastname@example.org http://blogs.msdn.com/taylorb