systemd

Description

system and service manager
systemd is a system and service manager for Linux. It provides aggressive
parallelization capabilities, uses socket and D-Bus activation for starting
services, offers on-demand starting of daemons, keeps track of processes using
Linux control groups, maintains mount and automount points and implements an
elaborate transactional dependency-based service control logic.

systemd is compatible with SysV and LSB init scripts and can work as a
drop-in replacement for sysvinit.

Installing the systemd package will not switch your init system unless you
boot with init=/bin/systemd or install systemd-sysv in addition.