Paolo, Your results match mine. I was never able to get my apu4 past about 600 Mb/s. I installed pfsense on my apu4 and was able to get speeds closer to 1 Gb/s so there does appear to be some bottleneck in openbsd which holds the hardware back.
If I recall correctly the i210at hardware checksum offloading was not enabled in openbsd due to a hardware quirk/bug. It looks like the i210at still doesn’t do hardware checksums: https://github.com/openbsd/src/blob/2207c4325726fdc5c4bcd0011af0fdf7d3dab137/sys/dev/pci/if_em.c#L1209 I didn’t profile the system so the lack of hardware checksums may not be the bottleneck. Elias On Wed, Sep 8, 2021 at 9:52 AM Paulo Manoel Mafra <pa...@mafra.eti.br> wrote: > Hello guys, > I've configured a pc engines apu4 with openbsd 6.9 and I verified the > network performance is around 550 mbit/s with pf and 700 mbit/s without. > > Is there any known issue for that poor performance ? > Running another OS on the same hardware I can reach some like 920 mbit/s. > > I've googled for this problem and it appears some messages from 2018. > > Kind Regards, > Paulo. > >
