On Thu, Oct 31, 2024 at 3:25 PM <c1337rog...@gmail.com> wrote: > I didn’t quite resolve this, but I think I narrowed it down to some bug > when switching between DPDK and non-DPDK drivers... I also switched back to > the default HG image for troubleshooting. After I bind the vfio-pci driver, > rebinding the i40e driver results in this error and I can’t really seem to > fix it. However, re-rebinding the vfio-pci driver lets me run > benchmark_rate with DPDK. > > Separate question: does DPDK constrain streaming applications to a single > core per interface? I notice I’m now CPU bottlenecked when running > benchmark_rate and just a single core is running at 100%, which I > definitely don’t remember ever being the case without DPDK. I tried adding > additional cores in the uhd.conf file but this resulted in errors. >
Yes, it does. We've thought about making it one core per streamer, but haven't prioritized this so far. --M
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