update from running system: $ cat /proc/cgroups #subsys_name hierarchy num_cgroups enabled debug 3 1 1 cpu 1 1 1 cpuacct 2 1 1 freezer 4 1 1
$ cat /proc/self/cgroup 5:name=systemd:/ 4:freezer:/ 3:debug:/ 2:cpuacct:/ 1:cpu:/
update from running system:
$ cat /proc/cgroups
#subsys_name hierarchy num_cgroups enabled
debug 3 1 1
cpu 1 1 1
cpuacct 2 1 1
freezer 4 1 1
$ cat /proc/self/cgroup
5:name=systemd:/
4:freezer:/
3:debug:/
2:cpuacct:/
1:cpu:/