Is LabWindows/CVI running faster than LabView?

[mara]

A colleague told me that LabWindows/CVI is much faster than LabView. And I make a mistake if I would go on using LabView. So he tried to convince me of LabWindows/CVI. What are your experiences? Which program is faster: LabWindows/CVI or LabView?

mara

[Dennis_Knutson]

It all depends on what you're doing. I've used both (LabWindows since v1 and LabVIEW since v3), and in my instrument control and daq applications, I don't see any. I think LabVIEW is faster to develop in and that's the main advantage for me. NI has a benchmark here [broken link removed] if that helps at all. Either LabVIEW or LabWindows is a good choice. If you're an experienced C programmer, you might be better off sticking with the more familar CVI but if you're not, LabVIEW should work just fine.

[Sebastian N]

Dear Mara,

It is not possible to say LabVIEW is not so fast, than LabWindows CVI. Some programmable things are faste in LabVIEW and other things are faster in CVI.

I have found one entry on this website:

http://exchange.ni.com/servlet/ProcessRequest?RHIVEID=101&RNAME=ViewQuestion&HOID=5065000000080000003A000000&ECategory=LabVIEW.LabVIEW+General

Hope this helps,

best regards.

SebastianN

[mara]

Thank you for this answer. The benchmarks are really interesting. Is my assumption right that LabView does execute the different SubVIs parallel and not sequential? Because that could increase the speed too, doesnt't it?

[Dennis_Knutson]

LabVIEW makes it easier to create a program that executes in parallel. If you have two different VIs on a diagram and there is no data connection between them, then they will execute in parallel subject to any hardware limitations. For example, you cannot expect two different GPIB write functions to operate in parallel because the GPIB bus can only send one at a time.

[mara]

O.k. And how is it with Ethernet?