    PROF(I)                      3/12/73                      PROF(I)

    NAME
         prof - display profile data

    SYNOPSIS
         prof [ -v ] [ -a ] [ -l ] [ file ]

    DESCRIPTION
         Prof  interprets  the  file  mon.out produced by the monitor
         subroutine.  Under default modes, the symbol  table  in  the
         named  object  file  (a.out  default) is read and correlated
         with the mon.out profile file.  For  each  external  symbol,
         the  percentage  of time spent executing between that symbol
         and the next is printed (in decreasing order), together with
         the  number  of times that routine was called and the number
         of milliseconds per call.

         If the -a option is used, all symbols  are  reported  rather
         than  just  external symbols.  If the -l option is used, the
         output is listed by symbol value rather than decreasing per-
         centage.   If  the  -v  option is used, all printing is sup-
         pressed and a profile plot is produced on the 611 display.

         In order for the number of calls to a routine to be tallied,
         the  -p option of cc must have been given when the file con-
         taining the routine was compiled.  This option also arranges
         for the mon.out file to be produced automatically.

    FILES
         mon.out   for profile
         a.out          for namelist
         /dev/vt0  for plotting

    SEE ALSO
         monitor(III), profil(II), cc(I)

    BUGS
         Beware of quantization errors.

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