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decoding queue overflow #25

@madpsy

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@madpsy

Seeing the following errors on a fairly constant basis:

2022-07-24 09:00:00,130 ERROR 1764 [KIWIC-20+] decoding queue overflow; dropping one file 2022-07-24 09:00:00,130 ERROR 1764 [FLYDOG-60~] decoding queue overflow; dropping one file 2022-07-24 09:00:00,141 ERROR 1764 [RASP-160~] decoding queue overflow; dropping one file 2022-07-24 09:00:00,141 ERROR 1764 [RASP-160!] decoding queue overflow; dropping one file 2022-07-24 09:00:00,142 ERROR 1764 [KIWIC-15!] decoding queue overflow; dropping one file 2022-07-24 09:00:00,143 ERROR 1764 [RASP-630!] decoding queue overflow; dropping one file 2022-07-24 09:00:00,144 ERROR 1764 [KIWIA-80~] decoding queue overflow; dropping one file 2022-07-24 09:00:00,145 ERROR 1764 [KIWIC-10~] decoding queue overflow; dropping one file 2022-07-24 09:00:00,146 ERROR 1764 [KIWIB-30+] decoding queue overflow; dropping one file 2022-07-24 09:00:00,147 ERROR 1764 [KIWIA-80!] decoding queue overflow; dropping one file 2022-07-24 09:00:00,147 ERROR 1764 [FLYDOG-40~] decoding queue overflow; dropping one file 2022-07-24 09:00:00,148 ERROR 1764 [KIWIC-20~] decoding queue overflow; dropping one file 2022-07-24 09:00:00,148 ERROR 1764 [KIWIB-12!] decoding queue overflow; dropping one file

What I'd like to understand is how the queue works and how it decides there is an overflow. I suspect the logic is based on if it can decode everything within the cycle {i.e. 15s for FT8). In other words is the CPU going to fail to decode in time.

Is this easily tweakable? I would be willing to bet that it wouldn't run away and build up an excessive queue as it's not unsual to have a a very busy cycle(s) followed by less busy cycle(s), thus the queue would catch up within, say, two minutes or less.

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