Simulink user interface slow

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Jason Gauthier 2019-11-7

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/489790-simulink-user-interface-slow

回答： Udit06 2024-8-27

Greetings,

Using MATLAB/Simulink 2019b. The interface while modifying my model can get really slow and laggy. Even just simply clicking, dragging, and resizing. Scrolling the wheel to zoom in/zoom out, along with attaching connections.

Is there anything I can do to increase the performance. My laptop isn't the newest, but it's also not that old. I use 64b windows 10, 64b MATLAB. I'm at 10/16 GB of memory used with MATLAB taking 1.5GB and a constant 15-25% CPU.

I have two models open, and some MATLAB code. Really would appreciate any advice on increasing the general UI performance.

Edit: Restarted MATLAB. without a model open it idles with 0% CPU. When I open the model it "idles" at 10+% CPU. Just having the model open and not interacting with it.

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Benjamin Thompson 2023-11-6

I am looking for solutions to this. My model has a deep hierarchy of reference models. Sometimes it takes 10 seconds to start running, sometimes it takes 30 minutes. This is with R2019B. My testing with R2021B seemed to show improvement but I have not been able to locate anything in release notes that might suggest where and how this was fixed. My models use large nested busses and S-Functions written in C++. MATLAB often uses 4 GB of memory once the model has loaded and update diagram completed.

Dell laptops and/or Windows are doing all this processor throttling even with the laptop plugged in and sitting on a big laptop fan colling pad. The process getting throttled is the "System Interupts" process. Simulink seems to rely on local network communications for inter-process communications so I am thinking that if maybe too much throttling is happening on the machine it slows MATLAB down to a crawl, especially if you have other competing I/O like antivirus, search indexing, and so on.

Sometimes MATLAB hangs and is unresponsive, possibly because one of its child processes has given up on receiving a response over the socket interface?

Craig 2024-4-17

Agree this is an urgent issue. Makes me want to go back to R2007b.

Krzysztof Koska 2024-8-5

I am using 2023b and facing same issue with very slow interface. Especially opening properties for bus selectors runs very slow.

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回答（1 个）

Udit06 2024-8-27

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/489790-simulink-user-interface-slow#answer_1505764

I was also facing a similar issue. In my case the issue was due to the anti-virus software which was slowing down the Simulink UI. You can try out the following approaches to resolve the issue:

Disable the anti-virus software.
Add MATLAB to the anti-virus whitelist.
Change the anti-virus scans to "scheduled" so they are only performed periodically.

Additionally, I found the following bug report which indicates that the Simulink UI may be slower when connected with a VPN.

https://www.mathworks.com/support/bugreports/3342976

I hope this helps.