Profile Matlab System block in Simulink

I have a Simulink model with a Matlab system block in, and would like to understand which code in the block is slowing the simulation down. when I run the profiler I get a breakdown that shows me the System Block is taking most of the time, but it doesn't show me where in the block the slowdown occurs. Is there a way to get such a breakdown similar to what you get when you run the profiler in Matlab? Thanks.

Answer 1

[Vimal Rathod]

Hello,

Like you said, the Simulink profiler would not show MATLAB line-by-line profiling results - rather it will show the time spent on the System block (as a whole).

To understand the performance of individual lines of the System object MATLAB code, we should use the MATLAB profiler as of now there is no other workaround.

Answer 2

[Robert Jack]

It is possible to use the MATLAB profiler on a Simulink model. Create a script in matlab as follows:-

modelName = 'MyExample';

load_system(modelName)

set_param(modelName,'Profile','on');

open_system(modelName)

sim(modelName);

Then use the standard Matlab profiler to run this script.