/sys/doc/ Documentation archive

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

     prof - display profile data

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

     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.

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

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

     Beware of quantization errors.

                              - 1 -