Can you try putting a tic in the begining of your MATLB code and toc at the end of your code.
function time_taken= example_test_function()
tic
your code
time_taken=toc;
This should hopefully give you the time taken for each iteration. incase if MATLAB code generator complaints about tic and toc usage in MATLAB fnction, try Coder.extrensic to aviod code gen issues.
