When analyzing a dump, displays information about the state of a
    CPU at the time of the system failure.

    SHOW CPU is only valid when you are analyzing a crash dump. It
    is not a valid command when you are analyzing the running system,
    because all the CPU-specific information may not be available.
    If invoked when you are analyzing a running system, SHOW CPU will
    only list the CPU database address(es) for the specified CPU or
    all CPUs.

    Format

      SHOW CPU  [cpu-id | /FIRST | /NEXT | /PRIMARY]