<idle>-0 3dN.2 14us : sched_avg_update <-__cpu_load_update
<idle>-0 3dN.2 14us : _raw_spin_unlock <-cpu_load_update_nohz
<idle>-0 3dN.2 14us : sub_preempt_count <-_raw_spin_unlock
- <idle>-0 3dN.1 15us : calc_load_exit_idle <-tick_nohz_idle_exit
+ <idle>-0 3dN.1 15us : calc_load_nohz_stop <-tick_nohz_idle_exit
<idle>-0 3dN.1 15us : touch_softlockup_watchdog <-tick_nohz_idle_exit
<idle>-0 3dN.1 15us : hrtimer_cancel <-tick_nohz_idle_exit
<idle>-0 3dN.1 15us : hrtimer_try_to_cancel <-hrtimer_cancel