Speed of a MATLAB code
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Hello
How to calculate the speed of execution of a MATLAB Code?
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Accepted Answer
Walter Roberson
on 28 May 2013
If you want to time with specific inputs, on your system, as currently configured, with the current load, then you can use http://www.mathworks.com/matlabcentral/fileexchange/18798-timeit-benchmarking-function
If you are trying to do an analysis of how the time varies with the size of the inputs, then in the general case you cannot do that. "Order analysis" needs to be done algebraically and through use of theorems.
More Answers (1)
Iain
on 28 May 2013
You can measure the time taken to execute a chunk of code using "now", or tic and toc,
tic;
codegoeshere;
toc % prints the time taken to screen.
logtime(1) = now;
code_segment
logtime(2) = now;
code_segment
...
logtime(n) = now;
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