On 2022-02-02 09:39, Rob Kossler wrote:
Ok. If benchmark_rate fails, this means that either your host is not
optimized or else it is underpowered, I think. Did you try the items
at this
<https://kb.ettus.com/USRP_Host_Performance_Tuning_Tips_and_Tricks#Adjust_Network_Buffers>link?
Are you getting any error messages or warnings (other than those
shown) when you run benchmark_rate? How about rx_streaming - are you
able to consume Rx streaming at high rates without errors?
Or there's something wrong with the ethernet interface hardware, or the
drivers for it.
Other folks have (quite recently) done 2-channel transmit experiments
with N320/N321 without any issue. I don't have one of these myself, so
I cannot do
experiments.
But if "benchmark_rate" fails at low sample rates (and 5Msps X 2 is
pretty modest), then something is woefully wrong with your system.
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