VI causes CPU load after several days of running

Hello

I have a strange problem. I have craeted a control test VI bench and it runs on five computers, five test of control systems. All PCs have almost the same hardware, same card mother, same processor, etc.

Normally the CPU load is around 50% when I run the VI, but to a PC, CPU load goes up to 85% after several days (maybe a week) market continues and the PC is almost tied up - VI execution becomes very slow (10 times slower) and the mouse moves only very slowly.

I have first thought that the PC has a problem, but the problem disappears as soon as I stop and restart the VI!

I don't even have to put an end to LabVIEW - only my VI and then all is well again.

The problem does not occur in the other four PC, but I can't say for sure.

The Task Manager indicates that LabVIEW causes CPU - use swap file load is small.

Is it possible to analyse the causes of high CPU load?

I use LabVIEW 7.1 Professional

Operating system: Win XP (SP 2 or 3 that I can't remember)

P.S. I have no loops without waiting-functions.

johanneshoer wrote:

...

the PC where the problem is occurring only 2 x 512 GB RAM, others have 2 x 1 GB. Maybe I have the upgrade of RAM would be my first action...

...

Assuming that it's a typo problem, is you have run out of memory physics and are returning to the virtual (which is 1000 X) slower than real memory.

Christian has nailed.

Ben

Tags: NI Software

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