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Response becomes sluggish after an extended run of the VI

I am using two cDAQ chassis to read therocouples and voltages.  There is not much user interaction on the Front Panel other than calling three sub VI's via "Hot Keys".   The program runs as expected at first, but after it has run for an extended period (ie, hours/days),  the update on the front panel, and the responsed to the "Hot Keys" becomese very sluggish.   I am suspecting a possible memory leak, but not sure where or how to track it down.   Any suggestions would be very much appreciatied.
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There is a great deal of talk about memory leak on discussion forum. Look at

http://forums.ni.com/ni/board/message?board.id=170&message.id=61610&query.id=149257#M61610

to see if it helps.

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I would definitely suggest searching ni.com for terms like "memory leak labview" to get some ideas.  One KnowledgeBase entry I found mentions the use of graphs and charts as a possible cause: Why Does My LabVIEW Application Use More System Resources the Longer it Executes?


Doug M
Applications Engineer
National Instruments
For those unfamiliar with NBC's The Office, my icon is NOT a picture of me 🙂
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