Hi, I can see it's dropping a lot of packets from the S and D letters that are being printed. The 'D' means the host dropped an RX packet. The 'S' means the FPGA got a packet that did not have the right sequence number, which in practice means a packet was dropped. The rate you're testing is pretty low, but the computer (i7-6700) is also pretty slow. I would expect it to work, but maybe the computer is not able to keep up?
Make sure you have a high-quality cable. A bad cable can lead to bit errors that cause the packets to be dropped. You mentioned USRP X440 with 2 x SFP (10GbE). Can you confirm which FPGA image you're using? The X440_X4_400 is optimized for use with the replay block, and not for direct streaming, because it has so many channels. But still, I'd expect it to work fine at least for RX streaming at the rate you're testing, if the host can keep up. Wade On Mon, Mar 17, 2025 at 7:40 AM Rilbert Lima via USRP-users < usrp-users@lists.ettus.com> wrote: > Hello everyone, > > Has anyone else had this problem? I'm new to USRP and I haven't been able > to solve this timeout issue yet. > > > rilbert.si...@embedded.ufcg.edu.br wrote: > > Hello everyone, > > I'm running benchmark tests using the USRP X440. Using another host, > connected with 2x SFP (10GbE) through a NIC Mellanox. > > I performed benchmark tests without and with DPDK, but the same RX > Sequence Detection Error appears during the executions. > > sudo /usr/local/lib/uhd/examples/benchmark_rate --args > "type=x4xx,mgmt_addr=10.4.21.7,addr=192.168.10.2,second_addr=192.168.11.2,use_dpdk=1" > --duration 10 --channels "0" --rx_rate 122.88e6 --rx_subdev "A:0" --tx_rate > 122.88e6 --tx_subdev "A:0" > > The specifications and generated logs are added below. > > Server specification > > OS: Ubuntu 22.04.5 LTS > > UHD/DPDK: [INFO] [UHD] linux; GNU C++ version 11.4.0; Boost_107400; > DPDK_21.11; UHD_4.8.0.HEAD-0-g308126a4 > > CPU: Intel(R) Core(TM) i7-6700 CPU @ 3.40GHz > > RAM: 24 GB DDR4 2133 MHz > > HDD: 1TB WDC WD10EZEX-00WN4A0 > > USRP: X440 > > FPGA: X4_200 > > NIC: > > 01:00.0 Ethernet controller: Mellanox Technologies MT27710 Family > [ConnectX-4 Lx] > > 01:00.1 Ethernet controller: Mellanox Technologies MT27710 Family > [ConnectX-4 Lx] > > All installations and performance tunning carried out > > virtus@Open-Ran:~$ sudo /usr/local/lib/uhd/examples/benchmark_rate --args > "type=x4xx,mgmt_addr=10.4.21.7,addr=192.168.10.2,second_addr=192.168.11.2,use_dpdk=1" > --duration 10 --channels "0" --rx_rate 122.88e6 --rx_subdev "A:0" --tx_rate > 122.88e6 --tx_subdev "A:0" > > [INFO] [UHD] linux; GNU C++ version 11.4.0; Boost_107400; DPDK_21.11; > UHD_4.8.0.HEAD-0-g308126a4 > > EAL: Detected CPU lcores: 4 > > EAL: Detected NUMA nodes: 1 > > EAL: Detected shared linkage of DPDK > > EAL: Multi-process socket /var/run/dpdk/rte/mp_socket > > EAL: Selected IOVA mode 'PA' > > EAL: No available 1048576 kB hugepages reported > > EAL: Probe PCI driver: mlx5_pci (15b3:1015) device: 0000:01:00.0 (socket 0) > > EAL: Probe PCI driver: mlx5_pci (15b3:1015) device: 0000:01:00.1 (socket 0) > > TELEMETRY: No legacy callbacks, legacy socket not created > > [00:00:00.000131] Creating the usrp device with: > type=x4xx,mgmt_addr=10.4.21.7,addr=192.168.10.2,second_addr=192.168.11.2,use_dpdk=1... > > [INFO] [MPMD] Initializing 1 device(s) in parallel with args: > mgmt_addr=10.4.21.7,type=x4xx,product=x440,serial=342597F,name=ni-x4xx-342597F,fpga=X4_200,claimed=False,addr=192.168.10.2,second_addr=192.168.11.2,use_dpdk=1 > > [WARNING] [MPM.RPCServer] A timeout event occured! > > [INFO] [MPM.PeriphManager] init() called with device args > `fpga=X4_200,mgmt_addr=10.4.21.7,name=ni-x4xx-342597F,product=x440,second_addr=192.168.11.2,use_dpdk=1,clock_source=internal,time_source=internal,initializing=True'. > > [WARNING] [RFNOC::GRAPH] One or more blocks timed out during flush! > > Using Device: Single USRP: > > Device: X400-Series Device > > Mboard 0: x440 > > RX Channel: 0 > > RX DSP: 0 > > RX Dboard: A > > RX Subdev: 0 > > TX Channel: 0 > > TX DSP: 0 > > TX Dboard: A > > TX Subdev: 0 > > [00:00:04.890785254] Setting device timestamp to 0... > > [00:00:04.893573392] Testing receive rate 122.880000 Msps on 1 channels > > Setting TX samples per packet (spp) to 2000 > > Setting TX samples per burst (spb) to 2000 > > [00:00:04.895115960] Testing transmit rate 122.880000 Msps on 1 channels > > [WARNING] [DPDK::IO_SERVICE] Dropping packet: No receiver xport found > > [00:00:04.895333965] Detected Rx sequence error. > > D[00:00:04.900956500] Detected Rx sequence error. > > D[00:00:04.901945039] Detected Rx sequence error. > > DS[00:00:04.908254438D] Detected Rx sequence error. > > [00:00:04.923984076] Detected Rx sequence error. > > DD[00:00:04.927156293] Detected Rx sequence error. > > S[00:00:04.933418309] Detected Rx sequence error. > > D[00:00:04.934999706] Detected Rx sequence error. > > DS[00:00:04.944429296] Detected Rx sequence error. > > D[D00:00:04.960792200] Detected Rx sequence error. > > [00:00:04.980643423D] Detected Rx sequence error. > > [00:00:04.990066689D] Detected Rx sequence error. > > [00:00:05.12097875D] Detected Rx sequence error. > > [00:00:05.29378268D] Detected Rx sequence error. > > S[00:00:05.30947174] Detected Rx sequence error. > > D[00:00:05.32531208D] Detected Rx sequence error. > > [00:00:05.48273124D] Detected Rx sequence error. > > [00:00:05.56130841D] Detected Rx sequence error. > > [00:00:05.62399657D] Detected Rx sequence error. > > [00:00:05.84382872] Detected Rx sequence error. > > D[D00:00:05.87587455] Detected Rx sequence error. > > [00:00:05.92294289] Detected Rx sequence error. > > DD[00:00:05.123768021] Detected Rx sequence error. > > [00:00:05.128453051D] Detected Rx sequence error. > > [00:00:05.144189840D] Detected Rx sequence error. > > [00:00:05.153635670] Detected Rx sequence error. > > D[00:00:05.155206941D] Detected Rx sequence error. > > S[00:00:05.175641539D] Detected Rx sequence error. > > [00:00:05.186625501] Detected Rx sequence error. > > D[D00:00:05.192945499] Detected Rx sequence error. > > [00:00:05.214956297] Detected Rx sequence error. > > D[00:00:05.215528236] Detected Rx sequence error. > > DD[00:00:05.229140936] Detected Rx sequence error. > > [00:00:05.230693026D] Detected Rx sequence error. > > [00:00:05.235426475D] Detected Rx sequence error. > > [00:00:05.243884071D] Detected Rx sequence error. > > [00:00:05.251735061D] Detected Rx sequence error. > > [00:00:05.254276876] Detected Rx sequence error. > > DD[00:00:05.255857541] Detected Rx sequence error. > > D[00:00:05.256447694] Detected Rx sequence error. > > [00:00:05.257445649] Detected Rx sequence error. > > DD[00:00:05.260595743] Detected Rx sequence error. > > [00:00:05.265305340D] Detected Rx sequence error. > > [00:00:05.267453316D] Detected Rx sequence error. > > [D00:00:05.268459891] Detected Rx sequence error. > > D[00:00:05.270033261] Detected Rx sequence error. > > D[00:00:05.270600506] Detected Rx sequence error. > > [00:00:05.271603978] Detected Rx sequence error. > > D[00:00:05.273152681] Detected Rx sequence error. > > D[00:00:05.274750683D] Detected Rx sequence error. > > [00:00:05.278454413D] Detected Rx sequence error. > > [00:00:05.279465965D] Detected Rx sequence error. > > [00:00:05.281028385D] Detected Rx sequence error. > > [00:00:05.282586950] Detected Rx sequence error.D > > [00:00:05.285732455] Detected Rx sequence error. > > D[D00:00:05.287320550] Detected Rx sequence error. > > [00:00:05.290471298D] Detected Rx sequence error. > > [D00:00:05.292823999] Detected Rx sequence error. > > [00:00:05.293605393] Detected Rx sequence error. > > DD[00:00:05.294215260] Detected Rx sequence error. > > [00:00:05.296761586D] Detected Rx sequence error. > > [00:00:05.298309949D] Detected Rx sequence error. > > [00:00:05.306189777D] Detected Rx sequence error. > > [00:00:05.307741083] Detected Rx sequence error. > > DD[00:00:05.308291334] Detected Rx sequence error. > > D[00:00:05.310090226] Detected Rx sequence error. > > [00:00:05.310891273] Detected Rx sequence error. > > D[00:00:05.312482113] Detected Rx sequence error. > > DD[00:00:05.314057525] Detected Rx sequence error. > > [00:00:05.317195566] Detected Rx sequence error. > > D[00:00:05.318792076D] Detected Rx sequence error. > > [00:00:05.319087621D] Detected Rx sequence error. > > [00:00:05.320357278] Detected Rx sequence error. > > D[D00:00:05.321107619] Detected Rx sequence error. > > [00:00:05.321907249] Detected Rx sequence error. > > D[00:00:05.323477508] Detected Rx sequence error. > > D[00:00:05.326625539D] Detected Rx sequence error. > > [00:00:05.327215810] Detected Rx sequence error. > > D[00:00:05.328212545] Detected Rx sequence error. > > D[00:00:05.329808521D] Detected Rx sequence error. > > [00:00:05.332946373D] Detected Rx sequence error. > > [00:00:05.339214526D] Detected Rx sequence error. > > [00:00:05.340783692D] Detected Rx sequence error. > > [00:00:05.342371022] Detected Rx sequence error. > > DD[00:00:05.351834601] Detected Rx sequence error. > > [00:00:05.353390826D] Detected Rx sequence error. > > [00:00:05.354133415] Detected Rx sequence error. > > D[D00:00:05.356538412] Detected Rx sequence error. > > [00:00:05.358107284] Detected Rx sequence error. > > D[00:00:05.359658331] Detected Rx sequence error. > > DD[00:00:05.360274266] Detected Rx sequence error. > > [00:00:05.361234564D] Detected Rx sequence error. > > [00:00:05.362830565D] Detected Rx sequence error. > > [00:00:05.364390138] Detected Rx sequence error. > > DD[00:00:05.372376266] Detected Rx sequence error. > > [00:00:05.378512826] Detected Rx sequence error. > > D[D00:00:05.384846759] Detected Rx sequence error. > > [00:00:05.385190643] Detected Rx sequence error. > > D[00:00:05.387965549] Detected Rx sequence error. > > D[00:00:05.391116043D] Detected Rx sequence error. > > [00:00:05.397458107] Detected Rx sequence error. > > DD[00:00:05.398998407] Detected Rx sequence error. > > [00:00:05.413165278D] Detected Rx sequence error. > > [00:00:05.420023779D] Detected Rx sequence error. > > [00:00:05.424129172] Detected Rx sequence error. > > D[00:00:05.437304718D] Detected Rx sequence error. > > [00:00:05.438301737] Detected Rx sequence error. > > DD[00:00:05.439862012] Detected Rx sequence error. > > [00:00:05.444585302D] Detected Rx sequence error. > > [D00:00:05.446199848] Detected Rx sequence error. > > [DU00:00:05.497738375] Detected Rx sequence error. > > [D00:00:05.498073029O] Detected Rx sequence error. > > [00:00:05.498514204] Detected Rx sequence error. > > [00:00:05.499152346] Detected Rx sequence error. > > [00:00:05.499195156] Detected Rx sequence error. > > [00:00:05.499263931] Detected Rx sequence error. > > [00:00:05.499478660] Detected Rx sequence error. > > [00:00:05.499692422] Detected Rx sequence error. > > [00:00:05.499801147] Detected Rx sequence error. > > [00:00:05.499907721] Detected Rx sequence error. > > [00:00:05.500014919] Detected Rx sequence error. > > DDDDDDDDDUUD[00:00:05.500546955] Detected Rx sequence error. > > D[00:00:05.500936289] Detected Rx sequence error. > > D[00:00:05.501338452] Detected Rx sequence error. > > [00:00:05.501579909] Detected Rx sequence error. > > [00:00:05.501810887] Detected Rx sequence error. > > DDD[00:00:05.502141658] Detected Rx sequence error. > > D[00:00:05.502536353] Detected Rx sequence error. > > SD[00:00:05.561635860] Detected Rx sequence error. > > D[00:00:05.568885003] Detected Rx sequence error. > > D[00:00:05.570467323] Detected Rx sequence error. > > S[00:00:05.680940286] Tx timeouts: 1[00:00:05.681045292 > > ] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:05.781263461] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:05.881470970] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:05.981714487] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:06.81886066] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:06.182094787] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:06.282255511] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:06.382391150] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:06.482446405] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:06.582506185] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:06.682542358] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:06.782595730] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:06.882646052] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:06.982705939] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:07.82751048] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:07.182803451] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:07.282855356] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:07.382910004] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:07.482981623] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:07.583014966] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:07.683064065] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:07.783124713] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:07.883193114] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:07.983244308] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:08.83338416] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:08.183522761] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:08.283716852] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:08.383880654] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:08.484009845] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:08.584070695] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:08.684124885] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:08.784209791] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:08.884282459] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:08.984334932] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:09.84413982] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:09.184450043] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:09.284490510] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:09.384552969] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:09.484594107] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:09.584652503] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:09.684700395] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:09.784760323] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:09.884868319] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:09.984907159] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:10.84976027] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:10.185012907] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:10.285090675] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:10.385130885] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:10.485180072] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:10.585241383] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:10.685314802] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:10.785441419] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:10.885506147] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:10.985621158] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:11.85663518] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:11.185777865] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:11.285815968] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:11.385882448] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:11.485956044] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:11.586013034] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:11.686076150] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:11.786207449] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:11.886285555] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:11.986362093] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:12.86413907] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:12.186501620] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:12.286542250] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:12.386622644] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:12.486697602] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:12.586752225] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:12.686809665] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:12.786872686] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:12.886986520] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:12.987025434] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:13.87089960] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:13.187135792] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:13.287222358] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:13.387413666] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:13.487543059] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:13.587596929] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:13.687646719] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:13.787733380] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:13.887879710] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:13.987968621] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:14.88013897] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:14.188090021] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:14.288132695] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:14.388182017] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:14.488231856] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:14.588282301] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:14.688337374] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:14.788393608] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:14.888453530] Receiver error: ERROR_CODE_TIMEOUT, continuing... > > [00:00:15.93979158] Benchmark complete. > > Benchmark rate summary: > > Num received samples: 77201576 > > Num dropped samples: 7544292 > > Num overruns detected: 1 > > Num transmitted samples: 78082000 > > Num sequence errors (Tx): 7 > > Num sequence errors (Rx): 131 > > Num underruns detected: 3 > > Num late commands: 0 > > Num timeouts (Tx): 94 > > Num timeouts (Rx): 93 > > Done! > > _______________________________________________ > USRP-users mailing list -- usrp-users@lists.ettus.com > To unsubscribe send an email to usrp-users-le...@lists.ettus.com >
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