Thank you @Noth. You are right. The OpenBSD PF FAQ also says: > PF will only use one processor, so multiple processors (or multiple cores) WILL NOT improve PF performance.
For PC Engines APU users, I can highly recommend to update the BIOS. It improved my networking performance quite a bit: https://pcengines.github.io/ When testing with iperf3 I now get 450Mbit/s instead of 200Mbit/s (with pf enabled). With pf disabled, I get ~750Mbit/s. Copying files from one to another machine (same physical NIC on APU, with VLANs and PF enabled) gave me around 930Mbit/s. Again, many thanks for all your help and inputs! On 2/5/2020 12:56 AM, Noth wrote: > According to the manufacturer of the APU2, the problem is with OpenBSD not > using all cores for network traffic management: > https://teklager.se/en/knowledge-base/apu2c0-ipfire-throughput-test-much-faster-pfsense/
