I'm running a VM containing Windows 7 SP 1.
Formerly it was configured to use 2 of the 4 cores of my MacBook Pro. I want to squeeze more performance out of the VM, so I increased the number of allocated cores to 3. That causes the following warning to be displayed in the dialog:
"The virtual machine is configured to use too many of the processor cores available on your Mac. This may cause slow performance of your Mac and the virtual machine."
Obviously, assigning resources to the VM 'takes them away from' OS X, and so it could cause slow performance of the computer.
But it makes no sense that assigning 3 of 4 cores to the VM would cause slow performance of the VM.
I have 2 questions:
What is the technical reason for the message to be displayed when assigned to a VM 3 of the 4 cores of a MBP?
Has anyone run into problems when running a Windows VM when it is assigned to use 3 of the 4 cores of their MBP?