how do i know the execution time of my vi?

[raki]

I want to know,how long my VI is executing.

I tried by going into Tools>Profile>Performance & Memory/Trace Execution.

Is this the only way to find the execution time or is there anyway to find it.

Please let me know.

Thanks,

Rakesh

[RavensFan]

You can put a msec timer at the front of your VI, one at the end, and subtract the difference and display on an indicator.  This is a good use for a flat sequence structure where the first frame has the time, the middle frame has your real VI, and the final frame as the timer again.

[raki]

Thanks for your reply.

Can you show me with an example

[RavensFan]

Message Edited by Ravens Fan on 04-13-2010 08:37 PM

[raki]

thank you

[JB]

You can also use the VI I posted here some days ago. It is very easy to use when using the error cluster wire.

[raki]

thank to all,it helped me alot

Message Edited by raki on 04-16-2010 11:36 PM

[raki]

the execution time of my design is 1msec- 5msec

i compared the execution time of my design with the similar design whichwas implemented in C. It was 306 msec.

 He used pentium 120 MHz processor

 I am using Core 2 Duo 2 GHz processor

will it depends on the processor speed or does labview has any DSP clock??

[Ben]

Your code is theoretically running about three times as fast if you adjust for the CPU speed and assume both version run on a single core.

Yes fast PC's should run it faster.

Ben

[NIquist]

I wouldn't read too much into a speed comparison of LabVIEW on a modern Core2 and C on a old Pentium.  Optimizing your code for best performance on your machine is what is important.