Simulink profiler timing problem

Question

Craig 2014-10-25

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https://ww2.mathworks.cn/matlabcentral/answers/160045-simulink-profiler-timing-problem

回答： Sandip Kumar 2014-10-27

Hello,

I have Show Profiler Report selected in Simulink 2013b

The simulink profiler is giving total recorded times in the order of 6 times longer than what i'm measuring using my watch.

What's going on?

Many thanks,

Craig

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Answer 1

Sandip Kumar 2014-10-27

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https://ww2.mathworks.cn/matlabcentral/answers/160045-simulink-profiler-timing-problem#answer_156785

First time when you run a model in Accelerator mode, and have profiler on, the report also includes the build of the model into an executable (i.e., the MEXW64 file). Probably this is the reason you are witnessing high recorded time compared to actual simulation of the model.

One way to quickly check is, to re-run the model (which already has the accelerator mode file present modelName_acc.mexw64 in the path). This time the profiler will show lower recorded time.

Some of the other ways of improving Accelerator mode performance is captured here:

http://www.mathworks.com/help/releases/R2014b/simulink/ug/improve-acceleration-mode-performance.html

Thanks, Sandip