OPNsense System Tunables Configuration

[yeraycito]

https://github.com/nightcomdev/opnsense/tree/main/tunables

[pfry]

It's an interesting reference, but you're going to get a number of "unknown OID" errors if you use them indiscriminately (e.g. net.inet.tcp.recvbuf_inc). Probably a good idea to check them before use. Also, defaults (seem to) change often.

[falken]

Some of those setting violate certain RFCs, and others could break intended behavior or make performance worse depending on circumstances.  I would make sure to only adjust what you know will bring your environment value.

[Seimus]

Tuning for the sake of tuning is never a great idea.

Tunables should be touched only in case to fix some particular problem or to achieve some specific goal.

Regards,
S.

[falken]

Tuning for the sake of tuning is never a great idea.

Tunables should be touched only in case to fix some particular problem or to achieve some specific goal.

Regards,
S.

This. I only adjusted a few settings, with a specific reason. I get full theoretical LAN and routing speed after TCP/IP overhead, and with a 2G symmetrical WAN link. Trying to optimize further would just invite problems with no additional gain.