Arrays touching on front panel slows down VI.

[AndyMatheson]

I have written a VI which downloads and displays 2 Arrays of Spacecraft Telemetry packets. If I arrange the arrays on the front panel so that they are touching (to look neater), the VI slows to a fraction of its original speed. Why is this? I wasted 3 days trying to understand what had gone wrong with my code, when it turned out to be a cosmetic problem. I can send you a copy of the VI along with instructions on how to reproduce the problem if you like.

[Doug (CapeFl)]

Andy, I can easily reproduce the same symptoms with any 2 arrays. Apparently, if 2 or more arrays are touching, much time is spent writing the results in each array, however, a continuous over-writing of the other "touching" arrays also occurs. This over-writing of the overlapping arrays takes a lot of processing time - as per your comments. As for the fix - keep the edges apart. Good luck - Doug

[markwysong]

As with CapeFl, I also have been able to duplicate your problem (LV 6.0.2 on Win95). However, once the arrays are touching, if I select one and tell it to "move to front" by highlighting it, selecting the Reorder drop-down from the toolbar and select "move to front", the problem disappears. Evidently has something to do with 2 arrays on the same level overlapping, and trying to update. Therefore, you can have your front panel the way you want it.

Mark

[Doug (CapeFl)]

Mark...and thus the benefit of message boards such as this. Even though it wasn't my question, I went ahead and did what you stated and sure enough - that's the solution. Thanks, CapeFl/Doug