-p

Compile for profiling with the prof profiler.

SPARC: 77/90 x86:77

Prepare object files for profiling, see prof (1). If you compile and link in separate steps, and if you compile with the -p option, then be sure to link with the -p option. -p with prof is provided mostly for compatibility with older systems. -pg profiling with gprof is possibly a better alternative. See the Fortran Programming Guide chapter on Performance Profiling for details.