I think the frozen screen problem occurred because I set isolcpus in /etc/default/grub for the DPDK cores in my uhd.conf file. After removing that and rebooting, everything proceeds smoothly.
Thank you for your help! On Thu, Jun 23, 2022 at 11:33 AM Shane Flandermeyer < shaneflanderme...@gmail.com> wrote: > It looks like I had secure boot enabled. After disabling it > and modifying features as in the article, I'm not getting any sequence > errors or dropped samples! However, my desktop freezes up momentarily while > I run the benchmark. Is this normal with DPDK, or is it a configuration > issue? > > On Thu, Jun 23, 2022 at 11:09 AM Shane Flandermeyer < > shaneflanderme...@gmail.com> wrote: > >> Kernel: 5.15.0-39-generic >> OS: Ubuntu 22.04 >> >> For some reason, I am not able to modify the features file even when I'm >> root. I get the following error: >> >> cat: features: Operation not permitted >> >> On Thu, Jun 23, 2022 at 10:57 AM Dylan Baros <dcba...@utexas.edu> wrote: >> >>> Good morning Shane, >>> >>> Can you verify what Linux kernel you are using? See the bottom section >>> of this KB article: >>> https://kb.ettus.com/Getting_Started_with_DPDK_and_UHD >>> >>> Thanks, >>> Dylan Baros >>> Sent from my iPhone >>> >>> On Jun 23, 2022, at 10:47 AM, Shane Flandermeyer < >>> shaneflanderme...@gmail.com> wrote: >>> >>> >>> Hello, >>> >>> I'm trying to configure UHD to work with DPDK and my Intel X550T NIC. >>> When running the benchmark_rate UHD example, the x310 drops packets and >>> gives sequence errors even at lower sample rates. Below is an example of >>> the output from the script. Have I configured something incorrectly? >>> >>> /usr/local/lib/uhd/examples# ./benchmark_rate --rx_rate 100e6 --args >>> "addr=192.168.40.2,use_dpdk=1" >>> >>> [INFO] [UHD] linux; GNU C++ version 11.2.0; Boost_107400; DPDK_21.11; >>> UHD_4.2.0.HEAD-0-g46a70d85 >>> EAL: Detected CPU lcores: 16 >>> 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: VFIO support initialized >>> EAL: Using IOMMU type 8 (No-IOMMU) >>> EAL: Probe PCI driver: net_ixgbe (8086:1563) device: 0000:b3:00.0 >>> (socket 0) >>> TELEMETRY: No legacy callbacks, legacy socket not created >>> [00:00:00.000411] Creating the usrp device with: >>> addr=192.168.40.2,use_dpdk=1... >>> [INFO] [X300] X300 initialization sequence... >>> [INFO] [X300] Maximum frame size: 8000 bytes. >>> [INFO] [X300] Radio 1x clock: 200 MHz >>> Using Device: Single USRP: >>> Device: X-Series Device >>> Mboard 0: X310 >>> RX Channel: 0 >>> RX DSP: 0 >>> RX Dboard: A >>> RX Subdev: UBX RX >>> RX Channel: 1 >>> RX DSP: 1 >>> RX Dboard: B >>> RX Subdev: UBX RX >>> TX Channel: 0 >>> TX DSP: 0 >>> TX Dboard: A >>> TX Subdev: UBX TX >>> TX Channel: 1 >>> TX DSP: 1 >>> TX Dboard: B >>> TX Subdev: UBX TX >>> >>> [00:00:02.819147387] Setting device timestamp to 0... >>> [00:00:02.821865134] Testing receive rate 100.000000 Msps on 1 channels >>> [00:00:03.355548206] Detected Rx sequence error. >>> D[D00:00:04.355894703] Detected Rx sequence error. >>> [D00:00:05.356027514] Detected Rx sequence error. >>> [00:00:06.355927093] Detected Rx sequence error. >>> D[00:00:07.355947814] Detected Rx sequence error. >>> D[D00:00:08.355300086] Detected Rx sequence error. >>> [D00:00:09.355619635] Detected Rx sequence error. >>> [D00:00:10.355006440] Detected Rx sequence error. >>> [D00:00:11.355740470] Detected Rx sequence error. >>> [D00:00:12.354932569] Detected Rx sequence error. >>> [00:00:12.822469413] Benchmark complete. >>> >>> >>> Benchmark rate summary: >>> Num received samples: 961039704 >>> Num dropped samples: 38916012 >>> Num overruns detected: 0 >>> Num transmitted samples: 0 >>> Num sequence errors (Tx): 0 >>> Num sequence errors (Rx): 10 >>> Num underruns detected: 0 >>> Num late commands: 0 >>> Num timeouts (Tx): 0 >>> Num timeouts (Rx): 0 >>> >>> >>> 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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