On 30/10/2024 13:38, dhpanch...@gmail.com wrote:
I had to change my 100G IP address to 192.168.120.2 and channels on
the X410 to “A”.
I set the CPU to Performance Mode and lowered the sample rate to
122.88e6.
However, I’m still experiencing dropped packets and sequence errors.
/usr/local/lib/uhd/examples$ sudo ./benchmark_rate --args
"type=x4xx,product=x410,addr=192.168.120.2,mgmt_addr=192.168.1.3,use_dpdk=1"
--priority "high" --rx_rate 122.88e6 --rx_subdev "A:1" --tx_rate
122.88e6 --tx_subdev "A:0"
[INFO] [UHD] linux; GNU C++ version 11.4.0; Boost_107400; DPDK_21.11;
UHD_4.7.0.HEAD-0-ga5ed1872
EAL: Detected CPU lcores: 32
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 'VA'
EAL: No available 1048576 kB hugepages reported
EAL: Probe PCI driver: mlx5_pci (15b3:1017) device: 0000:01:00.0
(socket 0)
EAL: Probe PCI driver: mlx5_pci (15b3:1017) device: 0000:01:00.1
(socket 0)
TELEMETRY: No legacy callbacks, legacy socket not created
[00:00:00.000094] Creating the usrp device with:
type=x4xx,product=x410,addr=192.168.120.2,mgmt_addr=192.168.1.3,use_dpdk=1...
[INFO] [MPMD] Initializing 1 device(s) in parallel with args:
mgmt_addr=192.168.1.3,type=x4xx,product=x410,serial=328AFD7,name=ni-x4xx-328AFD7,fpga=UC_200,claimed=False,addr=192.168.120.2,use_dpdk=1
[INFO] [MPM.PeriphManager] init() called with device args
`fpga=UC_200,mgmt_addr=192.168.1.3,name=ni-x4xx-328AFD7,product=x410,use_dpdk=1,clock_source=internal,time_source=internal,initializing=True'.
Using Device: Single USRP:
Device: X400-Series Device
Mboard 0: x410
RX Channel: 0
RX DSP: 0
RX Dboard: A
RX Subdev: 1
TX Channel: 0
TX DSP: 0
TX Dboard: A
TX Subdev: 0
[00:00:01.954717000] Setting device timestamp to 0...
[00:00:01.955999062] Testing receive rate 122.880000 Msps on 1 channels
Setting TX spp to 1992
[00:00:01.956816655] Testing transmit rate 122.880000 Msps on 1 channels
U[00:00:02.575486749] Detected Rx sequence error.
DU[00:00:03.575529623] Detected Rx sequence error.
DU[00:00:04.575537036] Detected Rx sequence error.
DU[00:00:05.575477062] Detected Rx sequence error.
DU[00:00:06.575465296] Detected Rx sequence error.
DU[00:00:07.575549183] Detected Rx sequence error.
DU[00:00:08.575539569] Detected Rx sequence error.
DU[00:00:09.575532702] Detected Rx sequence error.
DU[00:00:10.575479853] Detected Rx sequence error.
DU[00:00:11.575464597] Detected Rx sequence error.
D[00:00:11.958336752] Benchmark complete.
Benchmark rate summary:
Num received samples: 1176736199
Num dropped samples: 52167456
Num overruns detected: 0
Num transmitted samples: 1168152624
Num sequence errors (Tx): 0
Num sequence errors (Rx): 10
Num underruns detected: 10
Num late commands: 0
Num timeouts (Tx): 0
Num timeouts (Rx): 0
Done!
My /root/.config/uhd.conf file:
[use_dpdk=1]
dpdk_mtu=9000
dpdk_driver=/usr/lib/x86_64-linux-gnu/dpdk/pmds-22.0/
dpdk_corelist=10,11
dpdk_num_mbufs=4095
dpdk_mbuf_cache_size=315
[dpdk_mac=b8:3f:d2:b0:d7:58]
dpdk_lcore = 11
dpdk_ipv4 = 192.168.120.33/24
#dpdk_num_desc = 4096
I have attached screenshot of the performance GUI and system monitor
of the CPU usage
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This is on a "bare metal" system, and NOT on a VM, I assume?
I just ran a test (using a different USRP) doing 125Msps of receive into
my system, over a cheap 10GiGe card. Worked without
ANY dropped samples--just using the "benchmark_rate" application as
you have. My system is a 8-year-old dual-chip,
6-core Xeon system with 32G of memory, running on Ubuntu 22.04. Your
system SHOULD be capable of MUCH more.
I assume you've followed the various bits of advice here:
https://kb.ettus.com/USRP_Host_Performance_Tuning_Tips_and_Tricks#Increasing_Ring_Buffers
I wonder if you have a PHY-layer issue with your cabling?
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