I've been trying to check the performance of GNU Radio running on the Beagleboard and I was wondering if anyone has tried running the benchmark_tx and/or benchmark_rx scripts on them. When I was running benchmark_tx with dbpsk with symbol rate of 125k and a packet size of 1000 bytes the script would run but I would start getting "uU" messages between packet transmssions until the script fails. When I reduced the packet size to 100 I was getting less "uU" errors and the script would not fail. I'm assuming that "uU" means USRP underflow and the error would basically cause the beagleboard to throttle transmissions.
Has anyone tried this? Is the error caused by the beagleboard being too slow at producing packets? In order to further explore the issue what files should I look at? thanks al
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