The road forward for systemd

1. we set up all sockets, af_inet and af_unix.
2. after that is done, we start all daemons at the same time
3. and then, the kernel figures everything else out for us, for free

in inetd you only have the first step, and it is mostly about af_inet, not af_unix.

(this is a a simplification btw, its a bit more complex in reality.)

this is explained in the "parallelizing socket services" part of the original blog post.