-+ blkio = /dev/cgroup/blkio;
-+ cpu = /dev/cgroup/cpu;
-+ cpuacct = /dev/cgroup/cpuacct;
-+ cpuset = /dev/cgroup/cpuset;
-+ debug = /dev/cgroup/debug;
-+ devices = /dev/cgroup/devices;
-+ freezer = /dev/cgroup/freezer;
-+ memory = /dev/cgroup/memory;
-+ net_cls = /dev/cgroup/net_cls;
++ blkio = /sys/fs/cgroup/blkio;
++ cpu = /sys/fs/cgroup/cpu;
++ cpuacct = /sys/fs/cgroup/cpuacct;
++ cpuset = /sys/fs/cgroup/cpuset;
++## debug = /sys/fs/cgroup/debug;
++ devices = /sys/fs/cgroup/devices;
++ freezer = /sys/fs/cgroup/freezer;
++ memory = /sys/fs/cgroup/memory;
++ net_cls = /sys/fs/cgroup/net_cls;
++ perf_event = /sys/fs/cgroup/perf_event;