How to understand the time VI?

Hello

I use LV 8.6, and I'm curious to know how to understand statistics 'VI time' under the 'profile Performance and memory window.

I let one of my screws "continuous run" for about 5 seconds, but in the profile window, time of VI out 1.17 seconds, while the SubVIs time is 0. If I understand well of the Help window, 'VI time' represents the time spent executing the code of the VI, what happens for the other 4 seconds? It is confusing to me because I did similar tests on other screws (with no subVIs), and it seems the faster of the VI, more time to VI is.

Thank you very much.

The time you see reported is the total of all the slices of the CPU used by the code.

If the VI took 1 msec to start upward, then did a waiting for 1 second and then outputs, you should expect the total duration of about 1-5 ms alothough the run time in total was much more than that.

Ben

Tags: NI Software

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