Control group /:
-.slice
|-user.slice 
| `-user-500.slice 
|   |-user@500.service ...
|   | |-session.slice 
|   | | |-plasma-ksmserver.service 
|   | | | `- 3893 /usr/lib/kf5/bin/ksmserver
|   | | |-plasma-kwin_x11.service 
|   | | | `- 3896 /usr/lib/kf5/bin/kwin_x11 --replace
|   | | |-plasma-kded.service 
|   | | | |- 3895 /usr/lib/kf5/bin/kded5
|   | | | `- 4011 /usr/bin/xsettingsd
|   | | |-plasma-plasmashell.service 
|   | | | |- 3940 /usr/lib/kf5/bin/plasmashell --no-respawn
|   | | | `- 4181 /usr/bin/pulseaudio --start --log-target=syslog
|   | | `-dbus.service 
|   | |   `- 3850 /bin/dbus-daemon --session --address=systemd: --nofork --no...
|   | |-background.slice 
|   | | |-plasma-kactivitymanagerd.service 
|   | | | `- 3970 /usr/libexec/kf5/kactivitymanagerd
|   | | |-plasma-polkit-agent.service 
|   | | | `- 3972 /usr/libexec/kf5/polkit-kde-authentication-agent-1
|   | | |-plasma-kscreen.service 
|   | | | `- 4110 /usr/libexec/kf5/kscreen_backend_launcher
|   | | |-plasma-xembedsniproxy.service 
|   | | | `- 3975 /usr/lib/kf5/bin/xembedsniproxy
|   | | |-plasma-kglobalaccel.service 
|   | | | `- 3935 /usr/lib/kf5/bin/kglobalaccel5
|   | | |-plasma-gmenudbusmenuproxy.service 
|   | | | `- 3971 /usr/lib/kf5/bin/gmenudbusmenuproxy
|   | | `-plasma-powerdevil.service 
|   | |   `- 3974 /usr/libexec/kf5/org_kde_powerdevil
|   | |-app.slice 
|   | | |-app-org.kde.kdeconnect.daemon@autostart.service 
|   | | | `- 4086 /usr/libexec/kf5/kdeconnectd
|   | | |-app-org.kde.discover.notifier@autostart.service 
|   | | | `- 4101 /usr/libexec/DiscoverNotifier
|   | | |-app-kaccess@autostart.service 
|   | | | `- 4095 /usr/lib/kf5/bin/kaccess
|   | | |-app-kf5\x2dorg.kde.konsole-269be00f08cc409e91e2a4c8031d34ce.scope 
|   | | | |- 4915 /usr/bin/konsole --workdir /home/test
|   | | | |- 4929 /bin/bash
|   | | | |- 5203 su -
|   | | | `- 5211 -bash
|   | | |-dconf.service 
|   | | | `- 4001 /usr/libexec/dconf-service
|   | | |-ssh-agent.service 
|   | | | `- 3976 /usr/bin/ssh-agent -D -a /run/user/500/ssh-agent.socket
|   | | |-obex.service 
|   | | | `- 3877 /usr/libexec/bluetooth/obexd
|   | | `-app-org.kde.kalendarac@autostart.service 
|   | |   `- 4103 /usr/lib/kf5/bin/kalendarac
|   | `-init.scope 
|   |   |- 3731 /lib/systemd/systemd --user
|   |   `- 3733 (sd-pam)
|   |-session-3.scope 
|   | |- 3723 lightdm --session-child 12 19
|   | |- 3744 /usr/lib/kf5/bin/kwalletd5 --pam-login 8 9
|   | |- 3745 /usr/lib/kf5/bin/startplasma-x11
|   | |- 3790 ssh-agent -u
|   | `- 3804 /usr/bin/xauthority-hostname-updater -d
|   `-session-5.scope 
|     |- 5275 sshd: test [priv]
|     |- 5281 sshd: test@pts/1
|     |- 5282 -bash
|     |- 5323 su -
|     |- 5327 -bash
|     |- 6566 /usr/bin/python2.7 /usr/sbin/sosreport
|     |- 6695 timeout 300s systemd-cgls
|     `- 6696 systemd-cgls
|-init.scope 
| `- 1 /sbin/init splash
`-system.slice 
  |-rngd.service 
  | `- 2772 /usr/sbin/rngd -f
  |-nmb.service 
  | `- 3012 /usr/sbin/nmbd --no-process-group
  |-systemd-udevd.service 
  | |- 2486 /lib/systemd/systemd-udevd
  | |- 6642 (udev-worker)
  | |- 6644 (udev-worker)
  | `- 6645 (udev-worker)
  |-polkit.service 
  | `- 2764 /usr/libexec/polkit-1/polkitd --no-debug
  |-chronyd.service 
  | `- 5182 /usr/sbin/chronyd
  |-bluetooth.service 
  | `- 2753 /usr/libexec/bluetooth/bluetoothd
  |-accounts-daemon.service 
  | `- 3641 /usr/libexec/accounts-daemon
  |-wpa_supplicant.service 
  | `- 3047 /usr/sbin/wpa_supplicant -u
  |-lightdm.service 
  | |- 3632 /usr/sbin/lightdm
  | `- 3640 X -nolisten tcp :0 -seat seat0 -auth /run/lightdm/root/:0 -nolist...
  |-ModemManager.service 
  | `- 2887 /usr/sbin/ModemManager
  |-systemd-journald.service 
  | `- 2459 /lib/systemd/systemd-journald
  |-power-profiles-daemon.service 
  | `- 2770 /usr/lib/power-profiles-daemon
  |-sshd.service 
  | `- 2940 /usr/sbin/sshd -D
  |-fwupd.service 
  | |- 5401 /usr/libexec/fwupd/fwupd
  | `- 5430 gpg-agent --homedir /var/lib/fwupd/gnupg --use-standard-socket --...
  |-crond.service 
  | `- 2931 /usr/sbin/crond -n
  |-colord.service 
  | `- 4541 /usr/libexec/colord
  |-NetworkManager.service 
  | `- 2906 /usr/sbin/NetworkManager --no-daemon
  |-ahttpd.service 
  | `- 2928 /usr/bin/guile --no-auto-compile /usr/sbin/ahttpd
  |-systemd-userdbd.service 
  | |- 2487 /lib/systemd/systemd-userdbd
  | |- 6288 systemd-userwork: waiting...
  | |- 6308 systemd-userwork: waiting...
  | `- 6309 systemd-userwork: waiting...
  |-iio-sensor-proxy.service 
  | `- 2761 /usr/libexec/iio-sensor-proxy
  |-rpcbind.service 
  | `- 2474 /sbin/rpcbind -w -l
  |-cups-browsed.service 
  | `- 2944 /usr/sbin/cups-browsed
  |-postfix.service 
  | |- 3528 /usr/libexec/postfix/master -w
  | |- 3529 pickup -l -t fifo -u -c
  | `- 3530 qmgr -l -t fifo -u -c
  |-cups.service 
  | |- 2917 /usr/sbin/cupsd -l
  | |- 4539 /usr/lib/cups/notifier/dbus dbus://
  | `- 4540 /usr/lib/cups/notifier/dbus dbus://
  |-smb.service 
  | |- 3117 /usr/sbin/smbd --no-process-group
  | |- 3136 /usr/sbin/smbd --no-process-group
  | `- 3138 /usr/sbin/smbd --no-process-group
  |-upower.service 
  | `- 3993 /usr/libexec/upower/upowerd
  |-alteratord.service 
  | `- 2740 /usr/bin/guile --no-auto-compile /usr/sbin/alteratord
  |-systemd-oomd.service 
  | `- 3665 /lib/systemd/systemd-oomd
  |-udisks2.service 
  | `- 4059 /usr/libexec/udisks2/udisksd
  |-acpid.service 
  | `- 2737 /usr/sbin/acpid -f -n
  |-dbus.service 
  | `- 2758 /bin/dbus-daemon --system --address=systemd: --nofork --nopidfile...
  |-avahi-daemon.service 
  | |- 2747 avahi-daemon: running [leasemix.local]
  | `- 2795 avahi-daemon: chroot helper
  `-systemd-logind.service 
    `- 2774 /lib/systemd/systemd-logind
