[root@bogon ~]# mkdir -p /sys/fs/cgroup/cpu/demo1
[root@bogon ~]# mkdir -p /sys/fs/cgroup/cpu/demo2
[root@bogon ~]# echo 1024 > /sys/fs/cgroup/cpu/demo1/cpu.shares
[root@bogon ~]# echo 512 > /sys/fs/cgroup/cpu/demo2/cpu.shares

[root@bogon ~]# ./cg_cpu.sh 1 &
[1] 76198
[root@bogon ~]# ./cg_cpu.sh 2 &
[2] 76211

[root@bogon ~]# echo 76198 > /sys/fs/cgroup/cpu/demo1/tasks
[root@bogon ~]# echo 76211 > /sys/fs/cgroup/cpu/demo2/tasks