CP_SYS
cpu_states[CP_SYS] += cputime_percpu[cpu].cp_sys;
cpu_states[CP_SYS] = cputime_percpu[cpu].cp_sys;
cpu_states[CP_SYS] += cputime_percpu[n].cp_sys;
(cpu_states[CP_SYS] + lsb) * 10000 / acc);