measure time of the algorithm in S-function builder in Simulink

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wietjes 2016-4-13

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https://ww2.mathworks.cn/matlabcentral/answers/278783-measure-time-of-the-algorithm-in-s-function-builder-in-simulink

编辑： wietjes 2016-4-13

I'm trying to create a sorting algorithm in simulink. You can't use matlab-function blocks because it's a recursive function, so I have to use the S-function builder. Now I want to know how long the algorithm takes for a different inputrange. This is my code:

clock_t begin = clock();
sort(x,0,999);
clock_t einde = clock();
*time = (einde - begin) / CLOCKS_PER_SEC;
The sorting function works fine. But the output for time is the first element in the sorted array. Which makes no sense!?