12:devices:/system.slice/pdns.service 11:rdma:/ 10:pids:/system.slice/pdns.service 9:perf_event:/ 8:net_cls,net_prio:/ 7:cpu,cpuacct:/system.slice 6:blkio:/system.slice 5:freezer:/ 4:memory:/system.slice/pdns.service 3:hugetlb:/ 2:cpuset:/ 1:name=systemd:/system.slice/pdns.service