How can I find out the subsystem computation time for each tilmestep?

Asked by Bram Verlaan on 17 Oct 2018

Latest activity Answered by Bram Verlaan on 18 Oct 2018

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Hi all,

At the moment I am working inside Simulink, trying to simulate a real-time applicable control scheme. The entire simulation runs about 3-5x faster than the time over which is simulated.

However as at some instances the computational time required will be longer than at some other time instance. For my real-time application it is necessary that all these individual computational steps take less than a certain amount of time. Is it possible to find out how long a subsystem block takes to compute a step?

I was looking at the 'tic/toc' functions but don't clearly see how I should/could implement this... Or is there maybe another function/block for this? The solver profiler tool only shows me how large each step taken was, but not the time it took to compute this step.

I hope you guys can help me!

Kind regards,

Bram

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Products

Simulink

Release

R2018b

2 Answers

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Answer by TAB on 18 Oct 2018

Use Simulation profiler (not Solver profiler) to check profile info of blocks in the model.

Introduction to Profiling Models

How Profiler Captures Performance Data

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Answer by Bram Verlaan on 18 Oct 2018

Thanks TAB, I have found the Simulation Profiler.

However I still can only find an average computation time, while trying to localise peak performances. Is it possible to identify the time required for each individual call?

Kind regards,

Bram

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Products

Simulink

Release

R2018b

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