how to find the execution time of a matlab program.

3 个评论

Hi,
I've coded a function that might help you:
https://uk.mathworks.com/matlabcentral/fileexchange/59187-displayestimatedtimeofloop--tot-toc--curr-ix--tot-iter--
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.
Run and Time changes the execution time, sometimes a fair amount.

请先登录,再进行评论。

 采纳的回答

Namrata
Namrata 2011-2-18

11 个投票

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;

5 个评论

Wow... Thanks !!!
very thanks to you
Is there any limitation of tic toc command?
The first time I read this i though it was a bad joke, nvm thank you
It is a legit answer. Thank you.

请先登录,再进行评论。

更多回答(4 个)

Iain
Iain 2013-6-14

1 个投票

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

2 个评论

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

请先登录,再进行评论。

Mohd Sapiee
Mohd Sapiee 2018-12-4

1 个投票

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;
Oleg Komarov
Oleg Komarov 2011-2-18

0 个投票

Also, you can use the profiler
Oleg

1 个评论

Profiler will give compile+execution time,so not useful in most applications. timeit seems a good option.
Also you can manually use 'clock' function.

请先登录,再进行评论。

类别

帮助中心File Exchange 中查找有关 Workspace Variables and MAT Files 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by