PROF(CP) XENIX System V PROF(CP)
Name
prof - Displays profile data.
Syntax
prof [ -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
percentage.
To cause calls to a routine to be tallied, the -p option 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(S), profil(S), cc(CP)
Notes
Beware of quantization errors.
If you use an explicit call to monitor(S) you will need to
make sure that the buffer size is equal to or smaller than
the program size.
Warning
Profiling gives incorrect results for hybrid model 286
programs (i.e. those with 16 bit text pointers within
modules and 32 bit text pointers between modules).
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