CPU: Determining Whether to Use Bound or Unbound

When the applications within the target virtual partitions are I/O intensive, use bound CPUs because only bound CPUs can process I/O interrupts; specifically, with I/O intensive applications there should be more bound CPUs than unbound CPUs.

If your applications are CPU intensive (and not I/O intensive), use unbound CPUs so that you can easily adjust the number of CPUs via dynamic CPU migration as the demand on the virtual partition changes. Unbound CPUs provide greater flexibility of movement between virtual partitions because they can be added and removed without needing to bring down the affected partitions.