Control group /:
-.slice
|-user.slice 
| `-user-500.slice 
|   |-user@500.service ...
|   | |-session.slice 
|   | | |-pulseaudio.service 
|   | | | `- 3067 /usr/bin/pulseaudio --daemonize=no --log-target=journal
|   | | `-dbus.service 
|   | |   |- 3071 /bin/dbus-daemon --session --address=systemd: --nofork --no...
|   | |   |- 3334 mate-menu
|   | |   |- 3341 /usr/libexec/goa-daemon
|   | |   `- 3368 /usr/libexec/goa-identity-service
|   | |-background.slice 
|   | | `-tracker-miner-fs-3.service 
|   | |   `- 3327 /usr/libexec/tracker-miner-fs-3
|   | |-app.slice 
|   | | |-gvfs-goa-volume-monitor.service 
|   | | | `- 3335 /usr/libexec/gvfs/gvfs-goa-volume-monitor
|   | | |-dconf.service 
|   | | | `- 3240 /usr/libexec/dconf-service
|   | | |-gvfs-daemon.service 
|   | | | |- 3074 /usr/libexec/gvfs/gvfsd
|   | | | |- 3082 /usr/libexec/gvfs/gvfsd-fuse /run/user/500/gvfs -f
|   | | | |- 3436 /usr/libexec/gvfs/gvfsd-trash --spawner :1.3 /org/gtk/gvfs/...
|   | | | |- 3794 /usr/libexec/gvfs/gvfsd-network --spawner :1.3 /org/gtk/gvf...
|   | | | `- 3807 /usr/libexec/gvfs/gvfsd-dnssd --spawner :1.3 /org/gtk/gvfs/...
|   | | |-gvfs-udisks2-volume-monitor.service 
|   | | | `- 3310 /usr/libexec/gvfs/gvfs-udisks2-volume-monitor
|   | | |-gvfs-gphoto2-volume-monitor.service 
|   | | | `- 3325 /usr/libexec/gvfs/gvfs-gphoto2-volume-monitor
|   | | |-obex.service 
|   | | | `- 3465 /usr/libexec/bluetooth/obexd
|   | | |-at-spi-dbus-bus.service 
|   | | | |- 3217 /usr/libexec/at-spi-bus-launcher
|   | | | |- 3228 /bin/dbus-daemon --config-file=/usr/share/defaults/at-spi2/...
|   | | | `- 3275 /usr/libexec/at-spi2-registryd --use-gnome-session
|   | | |-gvfs-metadata.service 
|   | | | `- 3510 /usr/libexec/gvfs/gvfsd-metadata
|   | | |-gvfs-mtp-volume-monitor.service 
|   | | | `- 3320 /usr/libexec/gvfs/gvfs-mtp-volume-monitor
|   | | `-gvfs-afc-volume-monitor.service 
|   | |   `- 3389 /usr/libexec/gvfs/gvfs-afc-volume-monitor
|   | `-init.scope 
|   |   |- 3058 /lib/systemd/systemd --user
|   |   `- 3060 (sd-pam)
|   `-session-3.scope 
|     |- 2967 lightdm --session-child 12 19
|     |- 3078 /usr/bin/gnome-keyring-daemon --daemonize --login
|     |- 3089 /usr/bin/mate-session
|     |- 3138 ssh-agent -u
|     |- 3273 /usr/libexec/mate-settings-daemon
|     |- 3290 marco
|     |- 3300 mate-panel
|     |- 3322 /usr/bin/caja
|     |- 3346 /usr/bin/python3 /usr/share/system-config-printer/applet.py
|     |- 3347 nm-applet
|     |- 3351 mate-power-manager
|     |- 3372 blueberry-tray
|     |- 3373 mate-screensaver
|     |- 3385 parcellite
|     |- 3390 apt-indicator --autostarted
|     |- 3392 mate-volume-control-status-icon
|     |- 3398 blueberry-obex-agent
|     |- 3401 /usr/libexec/polkit-mate-authentication-agent-1
|     |- 3480 /bin/sh /usr/share/blueberry/safechild /usr/sbin/rfkill event
|     |- 3482 /usr/sbin/rfkill event
|     |- 3531 mate-terminal
|     |- 3578 bash
|     |- 3614 su -
|     |- 3621 -bash
|     |- 4119 /bin/bash ./run.sh logs
|     |- 4626 /usr/libexec/mate-screensaver/floaters /usr/share/pixmaps/gnome...
|     |- 4682 dbus-launch --exit-with-session /usr/bin/mate-session --version
|     |- 4683 /bin/dbus-daemon --syslog --fork --print-pid 5 --print-address ...
|     |- 4791 /usr/bin/python2.7 /usr/sbin/sosreport
|     |- 4932 timeout 300s systemd-cgls
|     `- 4933 systemd-cgls
|-init.scope 
| `- 1 /sbin/init splash
`-system.slice 
  |-systemd-udevd.service 
  | |- 2115 /lib/systemd/systemd-udevd
  | |- 4860 (udev-worker)
  | |- 4886 (udev-worker)
  | |- 4887 (udev-worker)
  | `- 4888 (udev-worker)
  |-polkit.service 
  | `- 2402 /usr/libexec/polkit-1/polkitd --no-debug
  |-chronyd.service 
  | `- 4020 /usr/sbin/chronyd
  |-bluetooth.service 
  | `- 2378 /usr/libexec/bluetooth/bluetoothd
  |-accounts-daemon.service 
  | `- 2373 /usr/libexec/accounts-daemon
  |-wpa_supplicant.service 
  | `- 2702 /usr/sbin/wpa_supplicant -u
  |-lightdm.service 
  | |- 2822 /usr/sbin/lightdm
  | `- 2830 X -nolisten tcp :0 -seat seat0 -auth /run/lightdm/root/:0 -nolist...
  |-ModemManager.service 
  | `- 2528 /usr/sbin/ModemManager
  |-systemd-journald.service 
  | `- 2083 /lib/systemd/systemd-journald
  |-sshd.service 
  | `- 4100 /usr/sbin/sshd -D
  |-crond.service 
  | `- 2691 /usr/sbin/crond -n
  |-colord.service 
  | `- 2697 /usr/libexec/colord
  |-NetworkManager.service 
  | `- 2540 /usr/sbin/NetworkManager --no-daemon
  |-system-cups.slice 
  | `-cups.service 
  |   |- 2682 /usr/sbin/cupsd -l
  |   `- 4040 /usr/lib/cups/notifier/dbus dbus://
  |-cups-browsed.service 
  | `- 3046 /usr/sbin/cups-browsed
  |-pcscd.service 
  | `- 3775 /usr/sbin/pcscd --foreground --auto-exit
  |-smb.service 
  | |- 3677 /usr/sbin/smbd --foreground --no-process-group
  | |- 3679 /usr/sbin/smbd --foreground --no-process-group
  | `- 3680 /usr/sbin/smbd --foreground --no-process-group
  |-upower.service 
  | `- 2412 /usr/libexec/upower/upowerd
  |-alteratord.service 
  | `- 2375 /usr/bin/guile --no-auto-compile /usr/sbin/alteratord
  |-udisks2.service 
  | `- 2409 /usr/libexec/udisks2/udisksd
  |-dbus.service 
  | `- 2396 /bin/dbus-daemon --system --address=systemd: --nofork --nopidfile...
  |-avahi-daemon.service 
  | |- 2377 avahi-daemon: running [umkvzdgsx23rr.local]
  | `- 2427 avahi-daemon: chroot helper
  `-systemd-logind.service 
    `- 2406 /lib/systemd/systemd-logind
