Difference between notifiers and queues

Hi, I have a question about notifiers and queues. I try to do a moving average for 6 min, having data with a sampling rate of 25 us. I use a producer/ consumer architecture. The producer loop reads 3 DMA Fifos from my FPGA vi and writes them in three diferent queues. Each queue is beeing read again in three consumer loop, one for each queue. I thought this might be faster??!! If I limit my queue to a certain size than after some minutes I get a timeout error, if I say 0 ms for timeout. I wanted to make sure that nothing will get lost. If I don't limit my queue size ( -1) after 10 minutes I get a message that I don't have enough memory to operate. I also can see that that in Task manager the page file is getting bigger and bigger until 2 gb. So from this poit of view I would assume that my average calculation is to slow and data has to be stored inbetween. So my consumer loop is to slow. Well I don't have any idea how to make my code faster. I also do a cascade for the averaging and the average is beeig calculated adding the new value and subtract the oldest value in the array.
Than I tryed using the notifiers. As I read you can not size a notifier. But what happens if the consumer loop is slower than the producer loop? Do I loose data? When using notifiers I don't get any error messages, like don't have enough memory . So what is the diference between notifiers and queues?
Has also someone any idea how to make the code faster ?
Thanks
Attachments:
mittel_Fifo1+2+3_gra_notif.vi ‏274 KB

Check the number of elements in the queue when running your vi, so you can see if your queue is running full.
Furthermore, your code looks a bit 'dirty'. From that I guess, there is still a lot of improvements that can be made to get the performance you need.
Take a look at the 'ptbypt Mean.vi' (I don't remember the exact name).
Felix
www.aescusoft.de
My latest community nugget on producer/consumer design
My current blog: A journey through uml

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