Library /sys$common/syshlp/dbg$help.hlb DEBUG, SHOW, THREAD, Qualifiers, /STATISTICS  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    (Compaq Ada on VAX only) Displays task statistics for the entire
    tasking system. This information enables you to measure the
    performance of your tasking program. The larger the number of
    total schedulings (also known as context switches), the more
    tasking overhead there is.