- Check if any background processes or applications are consuming an excessive amount of CPU or memory resources. High system load can affect the simulation performance and cause delays.
- Please ensure that there are no recent changes made to the S-function or Simulink model. It is probable that a small modification led to a steep increase in system utilization, causing this issue.
Simulink running slow (15 seconds real time = 1 second running time ) on monitor and tune
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I am running a ball and plate system on Simulink using arduino mega 2560. I'm using a mac with i5 intel core and 8 GB ram. About a week ago I had it working very well and the running time matched real world time. However for the past couple days the simulation time starting running in milliseconds. This created a delay in the reading of the plate and so no matter how much tuning i do the delay is makes the system hard if not impossible to tune. I had this problem before and I dont know what causes or fixes it. I am using an S function to read data and can only use fixed step solver which i have on auto.
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Shivani
le 18 Sep 2023
It will be difficult to determine the exact cause of this issue without the code and the model. However, please try out these potential resolutions mentioned below:
Please refer to the following documentation for more information on handling real-time simulation issues.
You can also refer to this MATLAB Answer addressing a similar issue
I hope this answers your question!
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Noman Nosher
le 23 Jan 2024
Try to change the sample time of all of your hardware blocks to -1.
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