CP_NICE
cpu_states[CP_NICE] += cputime_percpu[cpu].cp_nice;
cpu_states[CP_NICE] = cputime_percpu[cpu].cp_nice;
cpu_states[CP_NICE] += cputime_percpu[n].cp_nice;
return((cpu_states[CP_USER] + cpu_states[CP_NICE] + lsb) * 10000 / acc);