How could I measure the excution time of the VI

hiii
I need to measure the execution time or the elapsed time of the prog in LabVIEW , I know that this time is very small but I need to calculate how much it is?
are there a suitable vi to do this in lib of LabVIEW or we must build it?

There is an integrated tool, the VI profiler, Darren presents it here.
You can also find usefull info if you go on the LabVIEW community and search for "VI profiler" or "performance", you'll find all sorts of articles, blogs that can help you : https://decibel.ni.com/content/search.jspa?peopleEnabled=true&userID=&containerType=&container=&spot...
Hope this helps
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