how to known subVI execute time

[united kingdom]

Dear all,

 

I am using a PCI-6251 card to collect data in maximum rate 1,000,000/s, then I need to do signal processing to get useful information from these data and save. Unfortunately, the PC I am using is quite old, it is not good enough to finish both reading and analysing in one second. So I am trying to find out which parts of my signal processing costs most execute time. I tried Tool—performance and memory usage, but it did not help. Would any body tell me how to know the execute time for every subVI?  For example:

 

How long does it take the DAQ Read VI to read 1,000,000/s?

How long does it take to use Estimate AC-DC VI for 1,000,000 data?

How long does it take to use Peak detector for 1,000,000 data?

Thanks

Lyn

[Mark_Yedinak]

What didn't work when using the profile tool? Short of you adding timing around each call to a subVI the profiler would be the best tool to use.

[united kingdom]

Thanks, I found my problem, and got my results

Lyn