Problems write in I / O with VISA Serial (low speed of the program while recording)

[Pachik]

Hi! I being monitored voltage Serial port speed 230000Baud / s. It is fast and accurate, but when I want to record this data to a file tmds, xls, txt, this is reduced the speed of the program and buffer overflows series, which reduces the rate  voltage monitoring information. I have tried on 2 PCs with four core processors . I think that this is not due to the PC.

Because of what it might be?

[crossrulz · Accepted solution]

File IO is SLOW.  So you need to offset that somewhere.  Look at the Producer/Consumer.  The idea here is to have a loop that just reads the serial port (as fast as it needs to) and use a queue to pass the data to another loop for processing and saving it to disk.

[Pachik]

Thank you! I like it helped.