EXP_5
spu_avenrun[1] = calc_load(spu_avenrun[1], EXP_5, active_tasks);
avenrun[1] = calc_load_n(avenrun[1], EXP_5, active, n);
avenrun[1] = calc_load(avenrun[1], EXP_5, active);
WRITE_ONCE(avg_usage, calc_load(avg_usage, EXP_5, cur));