term% cat index.txt PROF(1) General Commands Manual PROF(1)
NAME
prof - display profile data
SYNOPSIS
prof [ -v ] [ -a ] [ -l ] [ -low [ -high ] ] [ 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 mil‐
liseconds per call.
If the -a option is used, all symbols are reported rather than just ex‐
ternal symbols. If the -l option is used, the output is listed by sym‐
bol value rather than decreasing percentage.
If the -v option is used, all printing is suppressed and a graphic ver‐
sion of the profile is produced on the standard output for display by
the plot(1) filters. The numbers low and high, by default 0 and 100,
cause a selected percentage of the profile to be plotted with accord‐
ingly higher resolution.
In order for the number of calls to a routine to be tallied, the -p op‐
tion of cc must have been given when the file containing 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
SEE ALSO
monitor(3), profil(2), cc(1), plot(1)
BUGS
Beware of quantization errors.
PROF(1)