Hello, Can you tell me, in general, the speed of dll (the dll includes digital I/O port operations) built by NI Application Builder and Microsoft Visual C, which one is faster when the dll is called in Labview? Thanks!
That's sort of asking how high is up. Comparing LabVIEW code to c code is highly dependent on the functions you're using and how effeciently you code your program. A dll built from a LabVIEW VI will have some minor speed improvements from running the VI in the development mode (they are both compiled). Both your LabVIEW app and a C app will make calls into the same dll (NI_DAQ) for the digital I/O so if that's all that you're doing, you won't see much, if any difference.
