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 external symbols. If the -l option is used, the output is listed by
symbol value rather than decreasing percentage.
If the -v option is used, all printing is suppressed and a graphic version 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 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(3), profil(2), cc(1), plot(1)BUGS
Beware of quantization errors.
PROF(1)
Check Out this Related Man Page
PROF(1) General Commands Manual PROF(1)NAME
prof, kprof - display profiling data
SYNOPSIS
prof [ -dr ] [ program ] [ profile ]
kprof kernel kpdata
DESCRIPTION
Prof interprets files produced automatically by programs loaded using the -p option of 2l(1) or other loader. The symbol table in the
named program file by default) is read and correlated with the profile file by default). For each symbol, the percentage of time (in sec-
onds) spent executing between that symbol and the next is printed (in decreasing order), together with the time spent there and the number
of times that routine was called.
Under option -d, prof prints the dynamic call graph of the target program, annotating the calls with the time spent in each routine and
those it calls, recursively. The output is indented two spaces for each call, and is formatted as
symbol:time/ncall
where symbol is the entry point of the call, time is in milliseconds, and ncall is the number of times that entry point was called at that
point in the call graph. If ncall is one, the /ncall is elided. Normally recursive calls are compressed to keep the output brief; option
-r prints the full call graph.
The size of the buffer in program used to hold the profiling data, by default 2000 entries, may be controlled by setting the environment
variable profsize before running program. If the buffer fills, subsequent function calls may not be recorded.
Kprof is similar to prof, but presents the data accumulated by the kernel profiling device, kprof(3). The symbol table file, that of the
operating system kernel, and the data file, typically /dev/kpdata, must be provided. Kprof has no options and cannot present dynamic data.
SOURCE
/sys/src/cmd/prof.c
/sys/src/cmd/kprof.c
SEE ALSO 2l(1), kprof(3)PROF(1)
HI,
In unix we can get profile on a c program like this ::
cc -g -p -o cpp_sw_gsmconverter_shailesh5 cpp_sw_gsmconverter_shailesh5.c
prof cpp_sw_gsmconverter_shailesh5
In the same manner how can I collect statistics in linux using gcc command.
Thanks in advance. (1 Reply)
Hey,
I was trying to configure my laptop's xorg.conf file so I could use a external monitor. But things got messed up and now I can't get the original back (meaning a high resolution desktop on the laptop). What went wrong? How is it possible that the server always gets stuck at the line: ... (1 Reply)
Bonjour,
Je travail sur un environnement AIX 5.3 et je n'arrive pas ŕ augmenter mon FS ni mon LV.
J'utilise les commande suivante chfs -a size=+4G /home/guesting
ou extendlv sybase5lv 4 et rien ŕ faire il me retourne que le maximum capacity est atteint au niveau du LV alors qu'il y a des PP de... (6 Replies)
Hi
I was wondering how can a c program will be implemented which will display a symbol while calculating something.
for example : program should display some charters like /\/\ while calculating.
At least provide some pointers
thanks (4 Replies)
I am new to R and would like to calculate the percentage frequency distribution of h1 and h2. How can I combine h1 and h2 in one plot? I tried the following code.
h1=c(5.18,4.61,3.30,7.58,3.00,3.80,1.95,2.67,2.77,2.73,2.33,3.36,3.50,1.91,4.25,3.87,2.86,2.26,2.00,3.86,3.33,3.59,4.00)... (0 Replies)