Specifies that a bar graph listing the top CPU time users be
    produced instead of the standard display and summary output.
    Values are expressed in units of clock ticks (10 milliseconds)
    per second.

    Prior to OpenVMS Version 7.3, the MONITOR PROCESSES/TOPCPU
    display showed only a maximum of 8 processes on one screen. In
    OpenVMS Version 7.3 and later versions, the choice of which one
    of three screens is displayed is determined by the number of
    CPUs on the system. (See the examples in the MONITOR chapter in
    the hardcopy VSI OpenVMS System Management Utilities Reference
    Manual.)