systemd: cpu usage of services

I'm running systemd 229-3 on an up-to-date Arch Linux installation. Lightdm is launched on startup, and starts my XFCE desktop environment. Furthermo...

dhcp option 252 what is it?

All over the internet I see example of how to set up dhcpd with WAPD proxy auto configuration using DHCP. In the /etc/dhcpd.conf file there are statements...