Execution Time

Question

sanjay Mohanty 2011-2-18

1
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1550-execution-time

评论： Walter Roberson 2021-4-21

采纳的回答： Namrata

how to find the execution time of a matlab program.

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Ijaz Ahmad 2021-4-21

The best to do is to use the "Run and Time" in the "Editor" menu. It shows a complete summary of every function that has been called and the time it has taken.

Walter Roberson 2021-4-21

Run and Time changes the execution time, sometimes a fair amount.

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Answer 1

Namrata 2011-2-18

11
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1550-execution-time#answer_2300

execution time can be found by tic-toc command.place tic; before the first line of code and toc; after the last line of the code

e.g.

tic;

MATLAB code

toc;

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Dario gms 2020-11-16

The first time I read this i though it was a bad joke, nvm thank you

Bin Qi 2021-2-3

It is a legit answer. Thank you.

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Answer 2

Iain 2013-6-14

1
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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1550-execution-time#answer_88777

Its more powerful to use "now" to get the current time than tic & toc, but it takes a bit more effort.

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Alexander Andreychenko 2016-4-5

在 MATLAB Online 中打开

Are you aware of anything that allows folding of tic/toc ? I found that there are undocumented options for tic and toc but what I exactly want is the following:

tic
  % doing something large
  tic 
    function_1();
  functionTime_1 = toc;
   tic
     function_2();
   functionTime_2 = toc;
wholeTime = toc;

Currently, in this case I see functionTime_1 and functionTime_2 but I don't see the way to get wholeTime.

Walter Roberson 2016-4-5

在 MATLAB Online 中打开

now1 = tic();
function_1();
functionTime_1 = toc(now1);
now2 = tic();
function_2();
functionTime_2 = toc(now2);
wholeTime = toc(now1);

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Answer 3

Mohd Sapiee 2018-12-4

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1550-execution-time#answer_350415

Also it is very useful to know the time taken or elapsed in Matlab is reading data from an Excel file, especially for very large number of Excel cells.

tic;

xlsread( );

toc;