12:pids:/system.slice/system-serial\x2dgetty.slice/serial-getty@ttyS0.service
11:freezer:/
10:cpuset:/
9:net_cls,net_prio:/
8:rdma:/
7:hugetlb:/
6:perf_event:/
5:devices:/system.slice/system-serial\x2dgetty.slice
4:blkio:/system.slice/system-serial\x2dgetty.slice
3:memory:/system.slice/system-serial\x2dgetty.slice
2:cpu,cpuacct:/system.slice/system-serial\x2dgetty.slice
1:name=systemd:/system.slice/system-serial\x2dgetty.slice/serial-getty@ttyS0.service
0::/system.slice/system-serial\x2dgetty.slice/serial-getty@ttyS0.service