After compiling with flags: -O0 -p -pg -Wall -c on GCC and -p -pg on the MinGW linker, the eclipse plugin gprof for shows no results. After that I did a cmd call using gprof my.exe gmon.out > prof.txt, which resulted in a report witth only the number of calls to functions.
Flat profile:
Each sample counts as 0.01 seconds.
no time accumulated
% cumulative self self total
time seconds seconds calls Ts/call Ts/call name
0.00 0.00 0.00 16000 0.00 0.00 vector_norm
0.00 0.00 0.00 16 0.00 0.00 rbf_kernel
0.00 0.00 0.00 8 0.00 0.00 lubksb
I've came across this topic: gprof reports no time accumulated. But my program is terminating in a clear maner. Also, gprof view show no data on MingW/Windows, but I am using 32 bits GCC. I have previously tried to use Cygwin, same result.
I am using eclipse Kepler with CDT version 8.3.0.201402142303 and MinGW with GCC 5.4.0.
Any help is appreciated, thank you in advance.
Sorry for the question, seems that the code is faster than gprof can measure.
As my application involves a neural network train with several iterations and further testing of kernels, I didn't suspected that a fast code could be causing the problem. I inserted a long loop in the main body and the gprof time was printed.