bsd man page for prof

PROF(1) 						      General Commands Manual							   PROF(1)

NAME
       prof - display profile data

SYNOPSIS
       prof [ -a ] [ -l ] [ -n ] [ -z ] [ -s ] [ -v [ -low [ -high ] ] ] [ a.out [ mon.out ... ] ]

DESCRIPTION
       Prof  interprets  the  file  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 profile file (mon.out default).  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 more than one profile file is specified, the output represents the sum of the profiles.

       In order for the number of calls to a routine to be tallied, the -p option of cc, f77 or pc must have been given when the  file	containing
       the routine was compiled.  This option also arranges for the profile file to be produced automatically.

       Options are:

       -a     all symbols are reported rather than just external symbols.

       -l     the output is sorted by symbol value.

       -n     the output is sorted by number of calls

       -s     a summary profile file is produced in mon.sum.  This is really only useful when more than one profile file is specified.

       -v     all  printing  is suppressed and a graphic version of the profile is produced on the standard output for display by the plot(1) fil-
	      ters.  When plotting, the numbers low and high, by default 0 and 100, may be given to cause a selected percentage of the profile	to
	      be plotted with accordingly higher resolution.

       -z     routines which have zero usage (as indicated by call counts and accumulated time) are nevertheless printed in the output.

FILES
       mon.out	for profile
       a.out	for namelist
       mon.sum	for summary profile

SEE ALSO
       monitor(3), profil(2), cc(1), plot(1G)

BUGS
       Beware of quantization errors.

       Is confused by f77 which puts the entry points at the bottom of subroutines and functions.

4th Berkeley Distribution					  April 29, 1985							   PROF(1)