Hi skyung, On 2022-07-29 20:08 +0000, skyung--- via USRP-users wrote: > I am setting up OAI 5G gNB and UE with USRP N310 (connected through > 1GbE to a desktop with the following CPU: > > \- Intel(R) Core(TM) i9-7900X CPU @ 3.30GHz > > I tried running a benchmark with uhd (rx/tx_rate 41.667MHz) and found > that it was dropping the packets, meaning the CPU clock rate is not > enough for handling the transmission. > > The output of > > ``` > ./benchmark_rate --rx_rate 41.667e6 --tx_rate 41.667e6 --args > "addr=10.0.0.10” > ```
Is it in network mode (desktop runs UHD code) or embedded mode (desktop -> SSH to the N310 embedded OS -> UHD code)? If it this in network mode, then it can't work. 1 channel at 41 Msps is almost 1.3 Gbps (41 * 16 * 2) transfer rate over your 1GbE interface. Furthermore, by specifying the rx and tx rate, you start the benchmark in full-duplex (i.e Tx + Rx), doubling the required transfer rate. Either way, your network is not capable of handling that transfer rate, you need to setup a 10GbE network. I don't know the limitation of the N310 embedded ARM to have an opinion in embedded mode. Regards -- Cédric Hannotier _______________________________________________ USRP-users mailing list -- usrp-users@lists.ettus.com To unsubscribe send an email to usrp-users-le...@lists.ettus.com
