Profile C and other compiled language program.
Part of Binutils.
gcc -pg main.c
# Run it to generate a gmon.out file.
./a.out arg0 arg1
# No need to pass the arguments again: profile times have already been generated.
gprof a.out
http://stackoverflow.com/questions/20948012/combining-multiple-gprof-result-files-into-a-single-file
perfvalgrind+callgrind+kcachegrindgperftoolsoprofile
Reviews:
- http://rhaas.blogspot.fr/2012/06/perf-good-bad-ugly.html
- http://gernotklingler.com/blog/gprof-valgrind-gperftools-evaluation-tools-application-level-cpu-profiling-linux/
gprof is considered bad because:
- you have to recompile to use it
- does not deal well with multi-threading