[root@bogon ~]# mount -l | grep cgroup
tmpfs on /sys/fs/cgroup type tmpfs (ro,nosuid,nodev,noexec,mode=755)
cgroup on /sys/fs/cgroup/systemd type cgroup (rw,nosuid,nodev,noexec,relatime,xattr,release_agent=/usr/lib/systemd/systemd-cgroups-agent,name=systemd)
cgroup on /sys/fs/cgroup/memory type cgroup (rw,nosuid,nodev,noexec,relatime,memory)
cgroup on /sys/fs/cgroup/freezer type cgroup (rw,nosuid,nodev,noexec,relatime,freezer)
cgroup on /sys/fs/cgroup/net_cls,net_prio type cgroup (rw,nosuid,nodev,noexec,relatime,net_prio,net_cls)
……

[root@bogon ~]# ls -l /sys/fs/cgroup
total 0
drwxr-xr-x 6 root root  0 Jan  9 15:11 blkio
lrwxrwxrwx 1 root root 11 Jan  9 15:11 cpu -> cpu,cpuacct
lrwxrwxrwx 1 root root 11 Jan  9 15:11 cpuacct -> cpu,cpuacct
drwxr-xr-x 8 root root  0 Jan  9 15:11 cpu,cpuacct
drwxr-xr-x 5 root root  0 Jan  9 15:11 cpuset
drwxr-xr-x 5 root root  0 Jan  9 15:11 devices
drwxr-xr-x 2 root root  0 Jan  9 15:11 freezer
……