Recently I became rather intrigued with Hyper-V’s Limit Processor Functionality (LPF) function. One little checkbox became such an obsession that I start wasting hours of my time trying to find out exactly what it does. The dialogue says, “Limit processor functionality to run an older operating system such as Windows NT on this virtual machine”.
That sounds pretty plausible because the newer multiple core processors with hardware accelerated virtualization were not around in the old days these operating systems were around.
Simple I thought. I’d find a selection of system information tools and run those with the check box flagged and without. I’d then compare the processor details and get the answer. So I chose three popular tools I thought would help me out. They were Everest, SiSoft Sandra and CPU-Z. They actually ended up adding to my confusion!
Full Article – http://blogs.dirteam.com/blogs/natashamocke/archive/2008/04/19/the-mystery-of-hyper-v-s-limit-processor-functionality-part-1.aspx
