Direct data VS local variables

[ByDesign]

Hey!

I'm doing LV Core 3 and hope someone enlighten me some more.. (Excersie 7-2 Solution more around 1:50 in the video to be more specific)

According to this module an indicator that is updated very frequently should be connected with direct data and not a local variable. Searching the help it tells me that local variables make copies of the data.

Is it somewhat like this:

1. I have an indicator A that is "coupled" to memory postion X.

2. If I write indicator A directly it writes directly to memory postion X.

3. If I instead would write via an local variable.. Would it first create a copy of the data to be written to the indicator in memory postion Y and then copy it to memory position X? 

Thanks

Peter

[Neos · Accepted solution]

Yes thats right. 

Now imagine if you have a very large array ( and array elements should be contigious in memory ).

the first memory manager needs to find a place in memory where it can hold the array and now you are have one more memory location occupied per local variable.