How to measure time that fmincon takes to extract one solution from a NMPC running in Simulink

I am running a Non-linear MPC at Simulink and I would like to know if it is possible to measure the computational time it takes for the fmincon to generate a solution for the controller per simulation time step. I have seen commands like tic/toc, cputime etc, but my issue is that I don't know a way that I could go "under the hood" and put these commands before and after fmincon.

If somebody knows, could you please help me?

[Benotsmane Rabab]

By building your nonlinear controller, you need to create the object nlopc, when you excute your model, call this function:

t= timeit(nlopc(nx, ny, nu))

where nx, ny, nu are the numbers of states variables, outputes, and inputes of your controller.