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doc: FAPI WLS: provide information on performance optimization

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Jaroslava Fiedlerova
2025-12-03 16:00:10 +01:00
committed by Robert Schmidt
parent 18edbc0f15
commit b137478dc8
1 changed files with 20 additions and 0 deletions
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doc/nfapi.md
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@@ -173,6 +173,26 @@ After installing WLS, you can run the build command as shown below:
Refer to the above steps in [Quickstart](#quickstart), but run the PNF first as it is the WLS "master".
To optimize the performance of your setup, you can provide the option
`--thread-pool <list of allocated CPUs>` in the PNF command line. This allows
you to pin PNF processing threads to specific CPU cores, as they might
otherwise interfere with DPDK used by WLS.
Before selecting which CPU cores to allocate: run `nr-softmodem` without the
`--thread-pool` option and use a process monitoring tool such as htop to check
CPU availability. Check for lightly loaded cores, and use them in the
thread-pool for the PNF.
Example commands for running an OTA test with USRP B200 on 40MHz:
Run PNF
sudo NFAPI_TRACE_LEVEL=info ./nr-softmodem -O ../../../targets/PROJECTS/GENERIC-NR-5GC/CONF/gnb-pnf.band78.rfsim.conf --nfapi PNF --continuous-tx -E --thread-pool 1,2,3,4,5
Run VNF
sudo NFAPI_TRACE_LEVEL=info ./nr-softmodem -O ../../../targets/PROJECTS/GENERIC-NR-5GC/CONF/gnb-vnf.sa.band78.106prb.nfapi.conf --nfapi VNF
#### How to run OAI PNF with OSC/Radisys O-DU
Set up the hugepages for DPDK (1GB page size, 6 pages; this only needs to be