unbound SO_REUSEPORT

[dinguz]

Starting with release 12.0, FreeBSD has a working SO_REUSEPORT implementation, so with the release of 20.7 this has become available to us.
Within unbound, it is possible to use this option. I have enabled 'so-reuseport: yes' in the unbound config, and found it beneficial, mainly in providing better distribution of the load between the threads/CPUs.

Please try it for yourself, and maybe one day it could make its way into the unbound default settings.

[franco]

Thanks, I'm deploying this at the office to see how it behaves. Reminder ticket here:

https://github.com/opnsense/core/issues/4303


Cheers,
Franco