Usando meu antigo artigo como exemplo:
Consegui baixar o tempo de boot para 11s, bem provável que os maiores responsáveis por esse atraso são o DHCP e o update de cache de ícones, fontes, libs, etc, eles continuam rodando mas somente através do script rc.local, ou seja ao fim do carregamento do script multi-usuário, o rc.M.
Patrick Volkerding on https://www.linuxquestions.org/questions/interviews-28/interview-with-patrick-volkerding-of-slackwar...
Concerning systemd, I do like the idea of a faster boot time (obviously), but I also like controlling the startup of the system with shell scripts that are readable, and I'm guessing that's what most Slackware users prefer too. I don't spend all day rebooting my machine, and having looked at systemd config files it seems to me a very foreign way of controlling a system to me, and attempting to control services, sockets, devices, mounts, etc., all within one daemon flies in the face of the UNIX concept of doing one thing and doing it well.