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instruction execution time


LucaTesti Jan 21, 2013 01:19 PM

I pretty much suppose that this question has been already answered, but unfortunately I cannot find anything in past treads... If this is so, my apologies.

I am making Eddy Covariance measurements. For some of the Moore set of corrections to be applied, one should need to know exactly how much time passes between the different measurements that will be correlated. For example, I have a CSAT3 + KH20 setting; they are read with two different instructions (put close one to each other in the program, to reduce the lag between them). I need to know the time needed (in sequential mode) to perform the first of the two measurements, as this is the exact lag between the two.
I managed this very well at the time of array based dls, but I am a bit confused now. Making a program that writes the DL time from the DL clock before and after the instruction could be a solution, but then what is the time needed to write the time to memory???

Thanks in advance.


GaryTRoberts Jan 21, 2013 07:04 PM

Take a look at the InstructionTimes instruction. This might give you what you need.

-Gary


GTProdMgr Jan 21, 2013 09:58 PM

http://www.campbellsci.com/forum/messages.cfm?threadid=A3A012C8-B3B3-8733-33B87CE99B305738

You could look at the Status table statistics mentioned in the above thread, and then write programs that do only one of the two tasks to see how their timing works out individually.


LucaTesti Jan 25, 2013 02:08 PM

The "InstructionTimes" instruction worked very well. I had completely overlooked it.

This forum is great.
Thanks to all.

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