On 2017-12-14, ti...@openmailbox.org <ti...@openmailbox.org> wrote: > Hi! > > Do you see any typical pf.conf or sysctl settings to tweak/speedup > NAT/networking stack throughput? > > (On USB2 dongles, sigh. > > Current speed is quite OK actually, a client with good hardware would get up > to 70mbps through the NAT. I was still curious to know if there are any > obvious toggles in sysctl/pf.conf for up:ing NAT/networking stack throughput > though. RAM is not an issue with me, I have plenty. I thought possibly some > settings were set to unnecessarily low defaults, for OpenBSD to work well on > machines with <1GB RAM, say.) > > Tinker
Generally not. The most common things to touch are: - raising net.inet.ip.ifq.maxlen if net.inet.ip.ifq.drops is increasing (trade-off against latency). - increasing "set limit states" on busier systems if needed. - using a wider port range than the default 50001:65535 on busier systems if needed (in PF nat rules; avoid starving the host itself of free ephemeral ports for locally initiated connections).
