Requirement to speed up MATLAB Simulink file

We have a MATLAB Simulink file with a lot of matlab functions inside it. We have created necessary .mex files and called them inside Matlab functions. The issue is that it is taking a whole lot of time. In order to speed up the process we used mex files, but that's not working. KIndly suggest on how to use mex files directly in simulink in some other way so that simulation gets quicker.

[Walter Roberson]

Perhaps use Level 2 S functions?

Answer 1

[Yair Altman]

Use the Profiler to discover where your performance hotspots are. It is quite possible that you will discover that it's not in your mex files but somewhere else. Or perhaps that your system calls your functions many more times than what you really need. You will be much more informed after running the Profiler and then you can focus on the hotspots that you'll discover.