Show the top control groups of the local Linux control group hierarchy, ordered by their CPU, memory, or disk I/O load. See also:
top. More information: https://www.freedesktop.org/software/systemd/man/systemd-cgtop.html.
systemd-cgtop
systemd-cgtop {{[-i|--order]}} {{cpu|memory|path|tasks|io}}
systemd-cgtop --cpu percentage
ms, us, min):systemd-cgtop {{[-d|--delay]}} {{interval}}
systemd-cgtop -P