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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