what's the time of pause(1)

Question

Eman Ahmed Elsayed 2011-6-8

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https://ww2.mathworks.cn/matlabcentral/answers/9084-what-s-the-time-of-pause-1

is this time equal 1 s??

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Answer 1

Paulo Silva 2011-6-8

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https://ww2.mathworks.cn/matlabcentral/answers/9084-what-s-the-time-of-pause-1#answer_12513

pause(n) pauses execution for n seconds before continuing, where n can be any nonnegative real number. The resolution of the clock is platform specific. A fractional pause of 0.01 seconds should be supported on most platforms. Pausing must be enabled for this to take effect.

Reference

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Answer 2

Matt Fig 2011-6-8

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https://ww2.mathworks.cn/matlabcentral/answers/9084-what-s-the-time-of-pause-1#answer_12514

在 MATLAB Online 中打开

Try this:

tic,pause(1),toc

The elapsed time should be slightly over 1 second, due to calling the pause function and other overhead.

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Matt Fig 2011-6-9

Built-in functions don't show in the profiler... at least in 2007b.

Also, I have noticed that the profiler total time run per function, or even per line of code is completely useless. For example, when looking at the profile of running an M-file which I know took less than 2 seconds to run, I see it saying things like REPMAT took 3.5 seconds alone, and meshgrid took 2.8 seconds - rubbish!

I only look at the relative times run to get useful information.

Paulo Silva 2011-6-9

I'm with the version 2008b and I can profile just the pause(1), it takes an average of 1.009 seconds, I'm also a fan of the tic and toc functions instead of the profiler

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