Thanks for your details. My problem is that my problem can be simplified as follows: Toggle an IO with 4 KHz. I don't have an external 4 KHz clock, therefore my idea was to depend on any timer API linux provides. While nanosleep and clock_nanosleep work as expected (clock_getres returns a valid result), itimer is more like a nice random generator. But one of the problems I still have are the Max. latencies. I tried to track them down. With "ping -f x.x.x.x" running and the tracing subsystem activated I get the following results (55ms Max. Latency). Personally I think that is not ok that "time" is updated with jiffies (HZ=200 on this kernel). All of my traces look the same (if HZ=100 then time is updated with 10000us, ...). # cat /dfs/tracing/trace # tracer: wakeup # # wakeup latency trace v1.1.5 on 2.6.29.6-rt23 # -------------------------------------------------------------------- # latency: 55000 us, #726/726, CPU#0 | (M:preempt VP:0, KP:0, SP:0 HP:0) # ----------------- # | task: test-247 (uid:0 nice:0 policy:1 rt_prio:80) # ----------------- # # _------=> CPU# # / _-----=> irqs-off # | / _----=> need-resched # || / _---=> hardirq/softirq # ||| / _--=> preempt-depth # |||| / # ||||| delay # cmd pid ||||| time | caller # \ / ||||| \ | / sirq-net-6 0d.h3 0us : 6: 50:R + [000] 247: 19:S test sirq-net-6 0d.h3 0us : wake_up_process <-hrtimer_wakeup sirq-net-6 0d.h2 0us : check_preempt_curr_rt <-try_to_wake_up sirq-net-6 0dNh1 0us : preempt_schedule <-try_to_wake_up sirq-net-6 0dNh2 0us : hrtimer_rt_defer <-hrtimer_interrupt sirq-net-6 0dNh2 0us : __run_hrtimer <-hrtimer_interrupt sirq-net-6 0dNh2 0us : __remove_hrtimer <-__run_hrtimer sirq-net-6 0dNh1 0us : preempt_schedule <-__run_hrtimer sirq-net-6 0dNh1 0us : tick_sched_timer <-__run_hrtimer sirq-net-6 0dNh1 0us : ktime_get <-tick_sched_timer sirq-net-6 0dNh1 0us : tc_get_cycles <-ktime_get sirq-net-6 0dNh1 0us : ktime_add_ns <-ktime_get sirq-net-6 0dNh2 0us!: do_timer <-tick_sched_timer sirq-net-6 0dNh2 5000us : update_wall_time <-do_timer sirq-net-6 0dNh2 5000us : tc_get_cycles <-update_wall_time sirq-net-6 0dNh2 5000us : clocksource_get_next <-update_wall_time sirq-net-6 0dNh2 5000us : preempt_schedule <-clocksource_get_next sirq-net-6 0dNh2 5000us : calc_global_load <-do_timer sirq-net-6 0dNh1 5000us : preempt_schedule <-tick_sched_timer sirq-net-6 0dNh1 5000us : update_process_times <-tick_sched_timer sirq-net-6 0dNh1 5000us : account_process_tick <-update_process_times sirq-net-6 0dNh1 5000us : account_system_time <-account_process_tick sirq-net-6 0dNh1 5000us : scheduler_tick <-update_process_times sirq-net-6 0dNh2 5000us : task_tick_rt <-scheduler_tick sirq-net-6 0dNh2 5000us : update_curr_rt <-task_tick_rt sirq-net-6 0dNh2 5000us : preempt_schedule <-update_curr_rt sirq-net-6 0dNh1 5000us : preempt_schedule <-scheduler_tick sirq-net-6 0dNh1 5000us : run_local_timers <-update_process_times sirq-net-6 0dNh1 5000us : hrtimer_run_queues <-run_local_timers sirq-net-6 0dNh1 5000us : raise_softirq <-run_local_timers sirq-net-6 0dNh1 5000us : softlockup_tick <-run_local_timers sirq-net-6 0dNh1 5000us : rcu_pending <-update_process_times sirq-net-6 0dNh1 5000us : run_posix_cpu_timers <-update_process_times sirq-net-6 0dNh1 5000us : hrtimer_forward <-tick_sched_timer sirq-net-6 0dNh1 5000us : ktime_add_safe <-hrtimer_forward sirq-net-6 0dNh1 5000us : ktime_add_safe <-hrtimer_forward sirq-net-6 0dNh2 5000us : enqueue_hrtimer <-__run_hrtimer sirq-net-6 0dNh1 5000us : preempt_schedule <-hrtimer_interrupt sirq-net-6 0dNh1 5000us : tick_program_event <-hrtimer_interrupt sirq-net-6 0dNh1 5000us : tick_dev_program_event <-tick_program_event sirq-net-6 0dNh1 5000us : ktime_get <-tick_dev_program_event sirq-net-6 0dNh1 5000us : tc_get_cycles <-ktime_get sirq-net-6 0dNh1 5000us : ktime_add_ns <-ktime_get sirq-net-6 0dNh1 5000us : clockevents_program_event <-tick_dev_program_event sirq-net-6 0dNh1 5000us : tc_next_event <-clockevents_program_event sirq-net-6 0dNh1 5000us : note_interrupt <-handle_level_irq sirq-net-6 0dNh2 5000us : at91_aic_unmask_irq <-handle_level_irq sirq-net-6 0dNh1 5000us : preempt_schedule <-handle_level_irq sirq-net-6 0dNh1 5000us : irq_exit <-_text sirq-net-6 0dN.2 5000us : __do_softirq <-irq_exit sirq-net-6 0dN.2 5000us : trigger_softirqs <-__do_softirq sirq-net-6 0dN.. 5000us : preempt_schedule_irq <-svc_preempt sirq-net-6 0dN.. 5000us : __schedule <-preempt_schedule_irq sirq-net-6 0dN.. 5000us : rcu_qsctr_inc <-__schedule sirq-net-6 0d..2 5000us : put_prev_task_rt <-__schedule sirq-net-6 0d..2 5000us : update_curr_rt <-put_prev_task_rt sirq-net-6 0dN.2 5000us : preempt_schedule <-update_curr_rt sirq-net-6 0dN.2 5000us : pick_next_task_rt <-__schedule sirq-net-6 0dN.2 5000us : pick_next_task_fair <-__schedule sirq-net-6 0dN.2 5000us : set_next_entity <-pick_next_task_fair sirq-net-6 0.N.1 5000us : preempt_schedule <-__schedule sirq-net-6 0.N.1 5000us : preempt_schedule <-__schedule sirq-net-6 0.N.1 5000us : __rcu_read_lock <-__atomic_notifier_call_chain sirq-net-6 0.N.1 5000us : nwfpe_notify <-notifier_call_chain sirq-net-6 0.N.1 5000us : __rcu_read_unlock <-__atomic_notifier_call_chain pdflush-99 0...1 5000us : finish_task_switch <-__schedule pdflush-99 0.... 5000us : rt_spin_lock <-pdflush pdflush-99 0.... 5000us : __might_sleep <-rt_spin_lock pdflush-99 0.... 5000us : rt_spin_lock_slowlock <-rt_spin_lock pdflush-99 0d..1 5000us : do_try_to_take_rt_mutex <-rt_spin_lock_slowlock pdflush-99 0.... 5000us : rt_spin_unlock <-pdflush pdflush-99 0.... 5000us : rt_spin_lock_slowunlock <-rt_spin_unlock pdflush-99 0.... 5000us : wb_kupdate <-pdflush pdflush-99 0.... 5000us : sync_supers <-wb_kupdate pdflush-99 0.... 5000us : rt_spin_lock <-sync_supers pdflush-99 0.... 5000us : __might_sleep <-rt_spin_lock pdflush-99 0.... 5000us : rt_spin_lock_slowlock <-rt_spin_lock pdflush-99 0d..1 5000us : do_try_to_take_rt_mutex <-rt_spin_lock_slowlock pdflush-99 0.... 5000us : rt_spin_unlock <-sync_supers pdflush-99 0.... 5000us : rt_spin_lock_slowunlock <-rt_spin_unlock pdflush-99 0.... 5000us : writeback_inodes <-wb_kupdate pdflush-99 0.... 5000us : __might_sleep <-writeback_inodes pdflush-99 0.... 5000us : rt_spin_lock <-writeback_inodes pdflush-99 0.... 5000us : __might_sleep <-rt_spin_lock pdflush-99 0.... 5000us : rt_spin_lock_slowlock <-rt_spin_lock pdflush-99 0d..1 5000us : do_try_to_take_rt_mutex <-rt_spin_lock_slowlock pdflush-99 0.... 5000us : rt_spin_unlock <-writeback_inodes pdflush-99 0.... 5000us : rt_spin_lock_slowunlock <-rt_spin_unlock pdflush-99 0.... 5000us : rt_down_read_trylock <-writeback_inodes pdflush-99 0.... 5000us : rt_mutex_trylock <-rt_down_read_trylock pdflush-99 0d..1 5000us : do_try_to_take_rt_mutex <-rt_mutex_trylock pdflush-99 0.... 5000us : generic_sync_sb_inodes <-writeback_inodes pdflush-99 0.... 5000us : rt_spin_lock <-generic_sync_sb_inodes pdflush-99 0.... 5000us : __might_sleep <-rt_spin_lock pdflush-99 0.... 5000us : rt_spin_lock_slowlock <-rt_spin_lock pdflush-99 0d..1 5000us : do_try_to_take_rt_mutex <-rt_spin_lock_slowlock pdflush-99 0.... 5000us : rt_spin_unlock <-generic_sync_sb_inodes pdflush-99 0.... 5000us : rt_spin_lock_slowunlock <-rt_spin_unlock pdflush-99 0.... 5000us : rt_up_read <-writeback_inodes pdflush-99 0.... 5000us : rt_mutex_unlock <-rt_up_read pdflush-99 0.... 5000us : rt_mutex_slowunlock <-rt_mutex_unlock pdflush-99 0.... 5000us : rt_spin_lock <-writeback_inodes pdflush-99 0.... 5000us : __might_sleep <-rt_spin_lock pdflush-99 0.... 5000us : rt_spin_lock_slowlock <-rt_spin_lock pdflush-99 0d..1 5000us : do_try_to_take_rt_mutex <-rt_spin_lock_slowlock pdflush-99 0.... 5000us : __put_super_and_need_restart <-writeback_inodes pdflush-99 0.... 5000us : rt_spin_unlock <-writeback_inodes pdflush-99 0.... 5000us : rt_spin_lock_slowunlock <-rt_spin_unlock pdflush-99 0.... 5000us : mod_timer <-wb_kupdate pdflush-99 0.... 5000us : lock_timer_base <-mod_timer pdflush-99 0.... 5000us : rt_spin_lock <-lock_timer_base pdflush-99 0.... 5000us : __might_sleep <-rt_spin_lock pdflush-99 0.... 5000us : rt_spin_lock_slowlock <-rt_spin_lock pdflush-99 0d..1 5000us : do_try_to_take_rt_mutex <-rt_spin_lock_slowlock pdflush-99 0.... 5000us : internal_add_timer <-mod_timer pdflush-99 0.... 5000us : rt_spin_unlock <-mod_timer pdflush-99 0.... 5000us : rt_spin_lock_slowunlock <-rt_spin_unlock pdflush-99 0.... 5000us : rt_spin_lock <-pdflush pdflush-99 0.... 5000us : __might_sleep <-rt_spin_lock pdflush-99 0.... 5000us : rt_spin_lock_slowlock <-rt_spin_lock pdflush-99 0d..1 5000us : do_try_to_take_rt_mutex <-rt_spin_lock_slowlock pdflush-99 0.... 5000us : rt_spin_unlock <-pdflush pdflush-99 0.... 5000us : rt_spin_lock_slowunlock <-rt_spin_unlock pdflush-99 0.... 5000us : schedule <-pdflush pdflush-99 0d... 5000us : __schedule <-schedule pdflush-99 0d... 5000us : rcu_qsctr_inc <-__schedule pdflush-99 0d..2 5000us : touch_softlockup_watchdog <-__schedule pdflush-99 0d..2 5000us : dequeue_task <-__schedule pdflush-99 0d..2 5000us : dequeue_task_fair <-dequeue_task pdflush-99 0d..2 5000us : update_curr <-dequeue_task_fair pdflush-99 0d..2 5000us : put_prev_task_fair <-__schedule pdflush-99 0d..2 5000us : pick_next_task_rt <-__schedule pdflush-99 0d..2 5000us : pick_next_task_fair <-__schedule pdflush-99 0d..2 5000us : pick_next_task_idle <-__schedule pdflush-99 0...1 5000us : __rcu_read_lock <-__atomic_notifier_call_chain pdflush-99 0...1 5000us : nwfpe_notify <-notifier_call_chain pdflush-99 0...1 5000us : __rcu_read_unlock <-__atomic_notifier_call_chain <idle>-0 0...1 5000us : finish_task_switch <-__schedule <idle>-0 0...1 5000us : default_idle <-cpu_idle <idle>-0 0d..2 5000us : _text <-__irq_svc <idle>-0 0d..2 5000us : irq_enter <-_text <idle>-0 0d..2 5000us : idle_cpu <-irq_enter <idle>-0 0d.h2 5000us : tick_check_idle <-irq_enter <idle>-0 0d.h2 5000us : irq_to_desc <-_text <idle>-0 0d.h2 5000us : handle_level_irq <-_text <idle>-0 0d.h3 5000us : at91_aic_mask_irq <-handle_level_irq <idle>-0 0d.h3 5000us : at91_aic_mask_irq <-handle_level_irq <idle>-0 0d.h3 5000us : redirect_hardirq <-handle_level_irq <idle>-0 0d.h2 5000us : handle_IRQ_event <-handle_level_irq <idle>-0 0d.h2 5000us : ch2_irq <-handle_IRQ_event <idle>-0 0d.h2 5000us : hrtimer_interrupt <-ch2_irq <idle>-0 0d.h2 5000us : ktime_get <-hrtimer_interrupt <idle>-0 0d.h2 5000us : tc_get_cycles <-ktime_get <idle>-0 0d.h2 5000us : ktime_add_ns <-ktime_get <idle>-0 0d.h3 5000us : hrtimer_rt_defer <-hrtimer_interrupt <idle>-0 0d.h3 5000us : __run_hrtimer <-hrtimer_interrupt <idle>-0 0d.h3 5000us : __remove_hrtimer <-__run_hrtimer <idle>-0 0d.h2 5000us : tick_sched_timer <-__run_hrtimer <idle>-0 0d.h2 5000us : ktime_get <-tick_sched_timer <idle>-0 0d.h2 5000us : tc_get_cycles <-ktime_get <idle>-0 0d.h2 5000us : ktime_add_ns <-ktime_get <idle>-0 0d.h3 5000us!: do_timer <-tick_sched_timer <idle>-0 0d.h3 10000us : update_wall_time <-do_timer <idle>-0 0d.h3 10000us : tc_get_cycles <-update_wall_time <idle>-0 0d.h3 10000us : clocksource_get_next <-update_wall_time <idle>-0 0d.h3 10000us : calc_global_load <-do_timer <idle>-0 0d.h2 10000us : update_process_times <-tick_sched_timer <idle>-0 0d.h2 10000us : account_process_tick <-update_process_times <idle>-0 0d.h2 10000us : scheduler_tick <-update_process_times <idle>-0 0d.h2 10000us : run_local_timers <-update_process_times <idle>-0 0d.h2 10000us : hrtimer_run_queues <-run_local_timers <idle>-0 0d.h2 10000us : raise_softirq <-run_local_timers <idle>-0 0d.h2 10000us : softlockup_tick <-run_local_timers <idle>-0 0d.h2 10000us : rcu_pending <-update_process_times <idle>-0 0d.h2 10000us : run_posix_cpu_timers <-update_process_times <idle>-0 0d.h2 10000us : hrtimer_forward <-tick_sched_timer <idle>-0 0d.h2 10000us : ktime_add_safe <-hrtimer_forward <idle>-0 0d.h2 10000us : ktime_add_safe <-hrtimer_forward <idle>-0 0d.h3 10000us : enqueue_hrtimer <-__run_hrtimer <idle>-0 0d.h2 10000us : tick_program_event <-hrtimer_interrupt <idle>-0 0d.h2 10000us : tick_dev_program_event <-tick_program_event <idle>-0 0d.h2 10000us : ktime_get <-tick_dev_program_event <idle>-0 0d.h2 10000us : tc_get_cycles <-ktime_get <idle>-0 0d.h2 10000us : ktime_add_ns <-ktime_get <idle>-0 0d.h2 10000us : clockevents_program_event <-tick_dev_program_event <idle>-0 0d.h2 10000us : tc_next_event <-clockevents_program_event <idle>-0 0d.h2 10000us : note_interrupt <-handle_level_irq <idle>-0 0d.h3 10000us : at91_aic_unmask_irq <-handle_level_irq <idle>-0 0d.h2 10000us : irq_exit <-_text <idle>-0 0d..3 10000us : __do_softirq <-irq_exit <idle>-0 0d..3 10000us : trigger_softirqs <-__do_softirq <idle>-0 0...1 10000us : default_idle <-cpu_idle <idle>-0 0d..2 10000us : _text <-__irq_svc <idle>-0 0d..2 10000us : irq_enter <-_text <idle>-0 0d..2 10000us : idle_cpu <-irq_enter <idle>-0 0d.h2 10000us : tick_check_idle <-irq_enter <idle>-0 0d.h2 10000us : irq_to_desc <-_text <idle>-0 0d.h2 10000us : handle_level_irq <-_text <idle>-0 0d.h3 10000us : at91_aic_mask_irq <-handle_level_irq <idle>-0 0d.h3 10000us : at91_aic_mask_irq <-handle_level_irq <idle>-0 0d.h3 10000us : redirect_hardirq <-handle_level_irq <idle>-0 0d.h2 10000us : handle_IRQ_event <-handle_level_irq <idle>-0 0d.h2 10000us : ch2_irq <-handle_IRQ_event <idle>-0 0d.h2 10000us : hrtimer_interrupt <-ch2_irq <idle>-0 0d.h2 10000us : ktime_get <-hrtimer_interrupt <idle>-0 0d.h2 10000us : tc_get_cycles <-ktime_get <idle>-0 0d.h2 10000us : ktime_add_ns <-ktime_get <idle>-0 0d.h3 10000us : hrtimer_rt_defer <-hrtimer_interrupt <idle>-0 0d.h3 10000us : __run_hrtimer <-hrtimer_interrupt <idle>-0 0d.h3 10000us : __remove_hrtimer <-__run_hrtimer <idle>-0 0d.h2 10000us : tick_sched_timer <-__run_hrtimer <idle>-0 0d.h2 10000us : ktime_get <-tick_sched_timer <idle>-0 0d.h2 10000us : tc_get_cycles <-ktime_get <idle>-0 0d.h2 10000us : ktime_add_ns <-ktime_get <idle>-0 0d.h3 10000us!: do_timer <-tick_sched_timer <idle>-0 0d.h3 15000us : update_wall_time <-do_timer <idle>-0 0d.h3 15000us : tc_get_cycles <-update_wall_time <idle>-0 0d.h3 15000us : clocksource_get_next <-update_wall_time <idle>-0 0d.h3 15000us : calc_global_load <-do_timer <idle>-0 0d.h2 15000us : update_process_times <-tick_sched_timer <idle>-0 0d.h2 15000us : account_process_tick <-update_process_times <idle>-0 0d.h2 15000us : scheduler_tick <-update_process_times <idle>-0 0d.h2 15000us : run_local_timers <-update_process_times <idle>-0 0d.h2 15000us : hrtimer_run_queues <-run_local_timers <idle>-0 0d.h2 15000us : raise_softirq <-run_local_timers <idle>-0 0d.h2 15000us : softlockup_tick <-run_local_timers <idle>-0 0d.h2 15000us : rcu_pending <-update_process_times <idle>-0 0d.h2 15000us : run_posix_cpu_timers <-update_process_times <idle>-0 0d.h2 15000us : hrtimer_forward <-tick_sched_timer <idle>-0 0d.h2 15000us : ktime_add_safe <-hrtimer_forward <idle>-0 0d.h2 15000us : ktime_add_safe <-hrtimer_forward <idle>-0 0d.h3 15000us : enqueue_hrtimer <-__run_hrtimer <idle>-0 0d.h2 15000us : tick_program_event <-hrtimer_interrupt <idle>-0 0d.h2 15000us : tick_dev_program_event <-tick_program_event <idle>-0 0d.h2 15000us : ktime_get <-tick_dev_program_event <idle>-0 0d.h2 15000us : tc_get_cycles <-ktime_get <idle>-0 0d.h2 15000us : ktime_add_ns <-ktime_get <idle>-0 0d.h2 15000us : clockevents_program_event <-tick_dev_program_event <idle>-0 0d.h2 15000us : tc_next_event <-clockevents_program_event <idle>-0 0d.h2 15000us : note_interrupt <-handle_level_irq <idle>-0 0d.h3 15000us : at91_aic_unmask_irq <-handle_level_irq <idle>-0 0d.h2 15000us : irq_exit <-_text <idle>-0 0d..3 15000us : __do_softirq <-irq_exit <idle>-0 0d..3 15000us : trigger_softirqs <-__do_softirq <idle>-0 0...1 15000us : default_idle <-cpu_idle <idle>-0 0d..2 15000us : _text <-__irq_svc <idle>-0 0d..2 15000us : irq_enter <-_text <idle>-0 0d..2 15000us : idle_cpu <-irq_enter <idle>-0 0d.h2 15000us : tick_check_idle <-irq_enter <idle>-0 0d.h2 15000us : irq_to_desc <-_text <idle>-0 0d.h2 15000us : handle_level_irq <-_text <idle>-0 0d.h3 15000us : at91_aic_mask_irq <-handle_level_irq <idle>-0 0d.h3 15000us : at91_aic_mask_irq <-handle_level_irq <idle>-0 0d.h3 15000us : redirect_hardirq <-handle_level_irq <idle>-0 0d.h2 15000us : handle_IRQ_event <-handle_level_irq <idle>-0 0d.h2 15000us : ch2_irq <-handle_IRQ_event <idle>-0 0d.h2 15000us : hrtimer_interrupt <-ch2_irq <idle>-0 0d.h2 15000us : ktime_get <-hrtimer_interrupt <idle>-0 0d.h2 15000us : tc_get_cycles <-ktime_get <idle>-0 0d.h2 15000us : ktime_add_ns <-ktime_get <idle>-0 0d.h3 15000us : hrtimer_rt_defer <-hrtimer_interrupt <idle>-0 0d.h3 15000us : __run_hrtimer <-hrtimer_interrupt <idle>-0 0d.h3 15000us : __remove_hrtimer <-__run_hrtimer <idle>-0 0d.h2 15000us : tick_sched_timer <-__run_hrtimer <idle>-0 0d.h2 15000us : ktime_get <-tick_sched_timer <idle>-0 0d.h2 15000us : tc_get_cycles <-ktime_get <idle>-0 0d.h2 15000us : ktime_add_ns <-ktime_get <idle>-0 0d.h3 15000us!: do_timer <-tick_sched_timer <idle>-0 0d.h3 20000us : update_wall_time <-do_timer <idle>-0 0d.h3 20000us : tc_get_cycles <-update_wall_time <idle>-0 0d.h3 20000us : clocksource_get_next <-update_wall_time <idle>-0 0d.h3 20000us : calc_global_load <-do_timer <idle>-0 0d.h2 20000us : update_process_times <-tick_sched_timer <idle>-0 0d.h2 20000us : account_process_tick <-update_process_times <idle>-0 0d.h2 20000us : scheduler_tick <-update_process_times <idle>-0 0d.h2 20000us : run_local_timers <-update_process_times <idle>-0 0d.h2 20000us : hrtimer_run_queues <-run_local_timers <idle>-0 0d.h2 20000us : raise_softirq <-run_local_timers <idle>-0 0d.h2 20000us : softlockup_tick <-run_local_timers <idle>-0 0d.h2 20000us : rcu_pending <-update_process_times <idle>-0 0d.h2 20000us : run_posix_cpu_timers <-update_process_times <idle>-0 0d.h2 20000us : hrtimer_forward <-tick_sched_timer <idle>-0 0d.h2 20000us : ktime_add_safe <-hrtimer_forward <idle>-0 0d.h2 20000us : ktime_add_safe <-hrtimer_forward <idle>-0 0d.h3 20000us : enqueue_hrtimer <-__run_hrtimer <idle>-0 0d.h2 20000us : tick_program_event <-hrtimer_interrupt <idle>-0 0d.h2 20000us : tick_dev_program_event <-tick_program_event <idle>-0 0d.h2 20000us : ktime_get <-tick_dev_program_event <idle>-0 0d.h2 20000us : tc_get_cycles <-ktime_get <idle>-0 0d.h2 20000us : ktime_add_ns <-ktime_get <idle>-0 0d.h2 20000us : clockevents_program_event <-tick_dev_program_event <idle>-0 0d.h2 20000us : tc_next_event <-clockevents_program_event <idle>-0 0d.h2 20000us : note_interrupt <-handle_level_irq <idle>-0 0d.h3 20000us : at91_aic_unmask_irq <-handle_level_irq <idle>-0 0d.h2 20000us : irq_exit <-_text <idle>-0 0d..3 20000us : __do_softirq <-irq_exit <idle>-0 0d..3 20000us : trigger_softirqs <-__do_softirq <idle>-0 0...1 20000us : default_idle <-cpu_idle <idle>-0 0d..2 20000us : _text <-__irq_svc <idle>-0 0d..2 20000us : irq_enter <-_text <idle>-0 0d..2 20000us : idle_cpu <-irq_enter <idle>-0 0d.h2 20000us : tick_check_idle <-irq_enter <idle>-0 0d.h2 20000us : irq_to_desc <-_text <idle>-0 0d.h2 20000us : handle_level_irq <-_text <idle>-0 0d.h3 20000us : at91_aic_mask_irq <-handle_level_irq <idle>-0 0d.h3 20000us : at91_aic_mask_irq <-handle_level_irq <idle>-0 0d.h3 20000us : redirect_hardirq <-handle_level_irq <idle>-0 0d.h3 20000us : wake_up_process <-redirect_hardirq <idle>-0 0d.h3 20000us : try_to_wake_up <-wake_up_process <idle>-0 0d.h3 20000us : task_rq_lock <-try_to_wake_up <idle>-0 0d.h4 20000us : activate_task <-try_to_wake_up <idle>-0 0d.h4 20000us : enqueue_task <-activate_task <idle>-0 0d.h4 20000us : enqueue_task_rt <-enqueue_task <idle>-0 0d.h4 20000us : dequeue_rt_stack <-enqueue_task_rt <idle>-0 0d.h4 20000us : check_preempt_curr_idle <-try_to_wake_up <idle>-0 0dNh3 20000us : preempt_schedule <-try_to_wake_up <idle>-0 0dNh2 20000us : preempt_schedule <-handle_level_irq <idle>-0 0dNh2 20000us : irq_exit <-_text <idle>-0 0dN.3 20000us : __do_softirq <-irq_exit <idle>-0 0dN.3 20000us : trigger_softirqs <-__do_softirq <idle>-0 0dN.. 20000us : __schedule <-cpu_idle <idle>-0 0dN.. 20000us : rcu_qsctr_inc <-__schedule <idle>-0 0d..2 20000us : put_prev_task_idle <-__schedule <idle>-0 0d..2 20000us : pick_next_task_rt <-__schedule <idle>-0 0d..2 20000us : pick_next_task_fair <-__schedule <idle>-0 0d..2 20000us : pick_next_task_idle <-__schedule <idle>-0 0...1 20000us : default_idle <-cpu_idle <idle>-0 0d..2 20000us : _text <-__irq_svc <idle>-0 0d..2 20000us : irq_enter <-_text <idle>-0 0d..2 20000us : idle_cpu <-irq_enter <idle>-0 0d.h2 20000us : tick_check_idle <-irq_enter <idle>-0 0d.h2 20000us : irq_to_desc <-_text <idle>-0 0d.h2 20000us : handle_level_irq <-_text <idle>-0 0d.h3 20000us : at91_aic_mask_irq <-handle_level_irq <idle>-0 0d.h3 20000us : at91_aic_mask_irq <-handle_level_irq <idle>-0 0d.h3 20000us : redirect_hardirq <-handle_level_irq <idle>-0 0d.h2 20000us : handle_IRQ_event <-handle_level_irq <idle>-0 0d.h2 20000us : ch2_irq <-handle_IRQ_event <idle>-0 0d.h2 20000us : hrtimer_interrupt <-ch2_irq <idle>-0 0d.h2 20000us : ktime_get <-hrtimer_interrupt <idle>-0 0d.h2 20000us : tc_get_cycles <-ktime_get <idle>-0 0d.h2 20000us : ktime_add_ns <-ktime_get <idle>-0 0d.h3 20000us : hrtimer_rt_defer <-hrtimer_interrupt <idle>-0 0d.h3 20000us : __run_hrtimer <-hrtimer_interrupt <idle>-0 0d.h3 20000us : __remove_hrtimer <-__run_hrtimer <idle>-0 0d.h2 20000us : tick_sched_timer <-__run_hrtimer <idle>-0 0d.h2 20000us : ktime_get <-tick_sched_timer <idle>-0 0d.h2 20000us : tc_get_cycles <-ktime_get <idle>-0 0d.h2 20000us : ktime_add_ns <-ktime_get <idle>-0 0d.h3 20000us!: do_timer <-tick_sched_timer <idle>-0 0d.h3 25000us : update_wall_time <-do_timer <idle>-0 0d.h3 25000us : tc_get_cycles <-update_wall_time <idle>-0 0d.h3 25000us : clocksource_get_next <-update_wall_time <idle>-0 0d.h3 25000us : calc_global_load <-do_timer <idle>-0 0d.h2 25000us : update_process_times <-tick_sched_timer <idle>-0 0d.h2 25000us : account_process_tick <-update_process_times <idle>-0 0d.h2 25000us : scheduler_tick <-update_process_times <idle>-0 0d.h2 25000us : run_local_timers <-update_process_times <idle>-0 0d.h2 25000us : hrtimer_run_queues <-run_local_timers <idle>-0 0d.h2 25000us : raise_softirq <-run_local_timers <idle>-0 0d.h2 25000us : softlockup_tick <-run_local_timers <idle>-0 0d.h2 25000us : rcu_pending <-update_process_times <idle>-0 0d.h2 25000us : run_posix_cpu_timers <-update_process_times <idle>-0 0d.h2 25000us : hrtimer_forward <-tick_sched_timer <idle>-0 0d.h2 25000us : ktime_add_safe <-hrtimer_forward <idle>-0 0d.h2 25000us : ktime_add_safe <-hrtimer_forward <idle>-0 0d.h3 25000us : enqueue_hrtimer <-__run_hrtimer <idle>-0 0d.h2 25000us : tick_program_event <-hrtimer_interrupt <idle>-0 0d.h2 25000us : tick_dev_program_event <-tick_program_event <idle>-0 0d.h2 25000us : ktime_get <-tick_dev_program_event <idle>-0 0d.h2 25000us : tc_get_cycles <-ktime_get <idle>-0 0d.h2 25000us : ktime_add_ns <-ktime_get <idle>-0 0d.h2 25000us : clockevents_program_event <-tick_dev_program_event <idle>-0 0d.h2 25000us : tc_next_event <-clockevents_program_event <idle>-0 0d.h2 25000us : note_interrupt <-handle_level_irq <idle>-0 0d.h3 25000us : at91_aic_unmask_irq <-handle_level_irq <idle>-0 0d.h2 25000us : irq_exit <-_text <idle>-0 0d..3 25000us : __do_softirq <-irq_exit <idle>-0 0d..3 25000us : trigger_softirqs <-__do_softirq <idle>-0 0...1 25000us : default_idle <-cpu_idle <idle>-0 0d..2 25000us : _text <-__irq_svc <idle>-0 0d..2 25000us : irq_enter <-_text <idle>-0 0d..2 25000us : idle_cpu <-irq_enter <idle>-0 0d.h2 25000us : tick_check_idle <-irq_enter <idle>-0 0d.h2 25000us : irq_to_desc <-_text <idle>-0 0d.h2 25000us : handle_level_irq <-_text <idle>-0 0d.h3 25000us : at91_aic_mask_irq <-handle_level_irq <idle>-0 0d.h3 25000us : at91_aic_mask_irq <-handle_level_irq <idle>-0 0d.h3 25000us : redirect_hardirq <-handle_level_irq <idle>-0 0d.h2 25000us : handle_IRQ_event <-handle_level_irq <idle>-0 0d.h2 25000us : ch2_irq <-handle_IRQ_event <idle>-0 0d.h2 25000us : hrtimer_interrupt <-ch2_irq <idle>-0 0d.h2 25000us : ktime_get <-hrtimer_interrupt <idle>-0 0d.h2 25000us : tc_get_cycles <-ktime_get <idle>-0 0d.h2 25000us : ktime_add_ns <-ktime_get <idle>-0 0d.h3 25000us : hrtimer_rt_defer <-hrtimer_interrupt <idle>-0 0d.h3 25000us : __run_hrtimer <-hrtimer_interrupt <idle>-0 0d.h3 25000us : __remove_hrtimer <-__run_hrtimer <idle>-0 0d.h2 25000us : tick_sched_timer <-__run_hrtimer <idle>-0 0d.h2 25000us : ktime_get <-tick_sched_timer <idle>-0 0d.h2 25000us : tc_get_cycles <-ktime_get <idle>-0 0d.h2 25000us : ktime_add_ns <-ktime_get <idle>-0 0d.h3 25000us!: do_timer <-tick_sched_timer <idle>-0 0d.h3 30000us : update_wall_time <-do_timer <idle>-0 0d.h3 30000us : tc_get_cycles <-update_wall_time <idle>-0 0d.h3 30000us : clocksource_get_next <-update_wall_time <idle>-0 0d.h3 30000us : calc_global_load <-do_timer <idle>-0 0d.h2 30000us : update_process_times <-tick_sched_timer <idle>-0 0d.h2 30000us : account_process_tick <-update_process_times <idle>-0 0d.h2 30000us : scheduler_tick <-update_process_times <idle>-0 0d.h2 30000us : run_local_timers <-update_process_times <idle>-0 0d.h2 30000us : hrtimer_run_queues <-run_local_timers <idle>-0 0d.h2 30000us : raise_softirq <-run_local_timers <idle>-0 0d.h2 30000us : softlockup_tick <-run_local_timers <idle>-0 0d.h2 30000us : rcu_pending <-update_process_times <idle>-0 0d.h2 30000us : run_posix_cpu_timers <-update_process_times <idle>-0 0d.h2 30000us : hrtimer_forward <-tick_sched_timer <idle>-0 0d.h2 30000us : ktime_add_safe <-hrtimer_forward <idle>-0 0d.h2 30000us : ktime_add_safe <-hrtimer_forward <idle>-0 0d.h3 30000us : enqueue_hrtimer <-__run_hrtimer <idle>-0 0d.h2 30000us : tick_program_event <-hrtimer_interrupt <idle>-0 0d.h2 30000us : tick_dev_program_event <-tick_program_event <idle>-0 0d.h2 30000us : ktime_get <-tick_dev_program_event <idle>-0 0d.h2 30000us : tc_get_cycles <-ktime_get <idle>-0 0d.h2 30000us : ktime_add_ns <-ktime_get <idle>-0 0d.h2 30000us : clockevents_program_event <-tick_dev_program_event <idle>-0 0d.h2 30000us : tc_next_event <-clockevents_program_event <idle>-0 0d.h2 30000us : note_interrupt <-handle_level_irq <idle>-0 0d.h3 30000us : at91_aic_unmask_irq <-handle_level_irq <idle>-0 0d.h2 30000us : irq_exit <-_text <idle>-0 0d..3 30000us : __do_softirq <-irq_exit <idle>-0 0d..3 30000us : trigger_softirqs <-__do_softirq <idle>-0 0...1 30000us : default_idle <-cpu_idle <idle>-0 0d..2 30000us : _text <-__irq_svc <idle>-0 0d..2 30000us : irq_enter <-_text <idle>-0 0d..2 30000us : idle_cpu <-irq_enter <idle>-0 0d.h2 30000us : tick_check_idle <-irq_enter <idle>-0 0d.h2 30000us : irq_to_desc <-_text <idle>-0 0d.h2 30000us : handle_level_irq <-_text <idle>-0 0d.h3 30000us : at91_aic_mask_irq <-handle_level_irq <idle>-0 0d.h3 30000us : at91_aic_mask_irq <-handle_level_irq <idle>-0 0d.h3 30000us : redirect_hardirq <-handle_level_irq <idle>-0 0d.h2 30000us : handle_IRQ_event <-handle_level_irq <idle>-0 0d.h2 30000us : ch2_irq <-handle_IRQ_event <idle>-0 0d.h2 30000us : hrtimer_interrupt <-ch2_irq <idle>-0 0d.h2 30000us : ktime_get <-hrtimer_interrupt <idle>-0 0d.h2 30000us : tc_get_cycles <-ktime_get <idle>-0 0d.h2 30000us : ktime_add_ns <-ktime_get <idle>-0 0d.h3 30000us : hrtimer_rt_defer <-hrtimer_interrupt <idle>-0 0d.h3 30000us : __run_hrtimer <-hrtimer_interrupt <idle>-0 0d.h3 30000us : __remove_hrtimer <-__run_hrtimer <idle>-0 0d.h2 30000us : tick_sched_timer <-__run_hrtimer <idle>-0 0d.h2 30000us : ktime_get <-tick_sched_timer <idle>-0 0d.h2 30000us : tc_get_cycles <-ktime_get <idle>-0 0d.h2 30000us : ktime_add_ns <-ktime_get <idle>-0 0d.h3 30000us!: do_timer <-tick_sched_timer <idle>-0 0d.h3 35000us : update_wall_time <-do_timer <idle>-0 0d.h3 35000us : tc_get_cycles <-update_wall_time <idle>-0 0d.h3 35000us : clocksource_get_next <-update_wall_time <idle>-0 0d.h3 35000us : calc_global_load <-do_timer <idle>-0 0d.h2 35000us : update_process_times <-tick_sched_timer <idle>-0 0d.h2 35000us : account_process_tick <-update_process_times <idle>-0 0d.h2 35000us : scheduler_tick <-update_process_times <idle>-0 0d.h2 35000us : run_local_timers <-update_process_times <idle>-0 0d.h2 35000us : hrtimer_run_queues <-run_local_timers <idle>-0 0d.h2 35000us : raise_softirq <-run_local_timers <idle>-0 0d.h2 35000us : softlockup_tick <-run_local_timers <idle>-0 0d.h2 35000us : rcu_pending <-update_process_times <idle>-0 0d.h2 35000us : run_posix_cpu_timers <-update_process_times <idle>-0 0d.h2 35000us : hrtimer_forward <-tick_sched_timer <idle>-0 0d.h2 35000us : ktime_add_safe <-hrtimer_forward <idle>-0 0d.h2 35000us : ktime_add_safe <-hrtimer_forward <idle>-0 0d.h3 35000us : enqueue_hrtimer <-__run_hrtimer <idle>-0 0d.h2 35000us : tick_program_event <-hrtimer_interrupt <idle>-0 0d.h2 35000us : tick_dev_program_event <-tick_program_event <idle>-0 0d.h2 35000us : ktime_get <-tick_dev_program_event <idle>-0 0d.h2 35000us : tc_get_cycles <-ktime_get <idle>-0 0d.h2 35000us : ktime_add_ns <-ktime_get <idle>-0 0d.h2 35000us : clockevents_program_event <-tick_dev_program_event <idle>-0 0d.h2 35000us : tc_next_event <-clockevents_program_event <idle>-0 0d.h2 35000us : note_interrupt <-handle_level_irq <idle>-0 0d.h3 35000us : at91_aic_unmask_irq <-handle_level_irq <idle>-0 0d.h2 35000us : irq_exit <-_text <idle>-0 0d..3 35000us : __do_softirq <-irq_exit <idle>-0 0d..3 35000us : trigger_softirqs <-__do_softirq <idle>-0 0...1 35000us : default_idle <-cpu_idle <idle>-0 0d..2 35000us : _text <-__irq_svc <idle>-0 0d..2 35000us : irq_enter <-_text <idle>-0 0d..2 35000us : idle_cpu <-irq_enter <idle>-0 0d.h2 35000us : tick_check_idle <-irq_enter <idle>-0 0d.h2 35000us : irq_to_desc <-_text <idle>-0 0d.h2 35000us : handle_level_irq <-_text <idle>-0 0d.h3 35000us : at91_aic_mask_irq <-handle_level_irq <idle>-0 0d.h3 35000us : at91_aic_mask_irq <-handle_level_irq <idle>-0 0d.h3 35000us : redirect_hardirq <-handle_level_irq <idle>-0 0d.h2 35000us : handle_IRQ_event <-handle_level_irq <idle>-0 0d.h2 35000us : ch2_irq <-handle_IRQ_event <idle>-0 0d.h2 35000us : hrtimer_interrupt <-ch2_irq <idle>-0 0d.h2 35000us : ktime_get <-hrtimer_interrupt <idle>-0 0d.h2 35000us : tc_get_cycles <-ktime_get <idle>-0 0d.h2 35000us : ktime_add_ns <-ktime_get <idle>-0 0d.h3 35000us : hrtimer_rt_defer <-hrtimer_interrupt <idle>-0 0d.h3 35000us : __run_hrtimer <-hrtimer_interrupt <idle>-0 0d.h3 35000us : __remove_hrtimer <-__run_hrtimer <idle>-0 0d.h2 35000us : tick_sched_timer <-__run_hrtimer <idle>-0 0d.h2 35000us : ktime_get <-tick_sched_timer <idle>-0 0d.h2 35000us : tc_get_cycles <-ktime_get <idle>-0 0d.h2 35000us : ktime_add_ns <-ktime_get <idle>-0 0d.h3 35000us!: do_timer <-tick_sched_timer <idle>-0 0d.h3 40000us : update_wall_time <-do_timer <idle>-0 0d.h3 40000us : tc_get_cycles <-update_wall_time <idle>-0 0d.h3 40000us : clocksource_get_next <-update_wall_time <idle>-0 0d.h3 40000us : calc_global_load <-do_timer <idle>-0 0d.h2 40000us : update_process_times <-tick_sched_timer <idle>-0 0d.h2 40000us : account_process_tick <-update_process_times <idle>-0 0d.h2 40000us : scheduler_tick <-update_process_times <idle>-0 0d.h2 40000us : run_local_timers <-update_process_times <idle>-0 0d.h2 40000us : hrtimer_run_queues <-run_local_timers <idle>-0 0d.h2 40000us : raise_softirq <-run_local_timers <idle>-0 0d.h2 40000us : softlockup_tick <-run_local_timers <idle>-0 0d.h2 40000us : rcu_pending <-update_process_times <idle>-0 0d.h2 40000us : run_posix_cpu_timers <-update_process_times <idle>-0 0d.h2 40000us : hrtimer_forward <-tick_sched_timer <idle>-0 0d.h2 40000us : ktime_add_safe <-hrtimer_forward <idle>-0 0d.h2 40000us : ktime_add_safe <-hrtimer_forward <idle>-0 0d.h3 40000us : enqueue_hrtimer <-__run_hrtimer <idle>-0 0d.h2 40000us : tick_program_event <-hrtimer_interrupt <idle>-0 0d.h2 40000us : tick_dev_program_event <-tick_program_event <idle>-0 0d.h2 40000us : ktime_get <-tick_dev_program_event <idle>-0 0d.h2 40000us : tc_get_cycles <-ktime_get <idle>-0 0d.h2 40000us : ktime_add_ns <-ktime_get <idle>-0 0d.h2 40000us : clockevents_program_event <-tick_dev_program_event <idle>-0 0d.h2 40000us : tc_next_event <-clockevents_program_event <idle>-0 0d.h2 40000us : note_interrupt <-handle_level_irq <idle>-0 0d.h3 40000us : at91_aic_unmask_irq <-handle_level_irq <idle>-0 0d.h2 40000us : irq_exit <-_text <idle>-0 0d..3 40000us : __do_softirq <-irq_exit <idle>-0 0d..3 40000us : trigger_softirqs <-__do_softirq <idle>-0 0...1 40000us : default_idle <-cpu_idle <idle>-0 0d..2 40000us : _text <-__irq_svc <idle>-0 0d..2 40000us : irq_enter <-_text <idle>-0 0d..2 40000us : idle_cpu <-irq_enter <idle>-0 0d.h2 40000us : tick_check_idle <-irq_enter <idle>-0 0d.h2 40000us : irq_to_desc <-_text <idle>-0 0d.h2 40000us : handle_level_irq <-_text <idle>-0 0d.h3 40000us : at91_aic_mask_irq <-handle_level_irq <idle>-0 0d.h3 40000us : at91_aic_mask_irq <-handle_level_irq <idle>-0 0d.h3 40000us : redirect_hardirq <-handle_level_irq <idle>-0 0d.h2 40000us : handle_IRQ_event <-handle_level_irq <idle>-0 0d.h2 40000us : ch2_irq <-handle_IRQ_event <idle>-0 0d.h2 40000us : hrtimer_interrupt <-ch2_irq <idle>-0 0d.h2 40000us : ktime_get <-hrtimer_interrupt <idle>-0 0d.h2 40000us : tc_get_cycles <-ktime_get <idle>-0 0d.h2 40000us : ktime_add_ns <-ktime_get <idle>-0 0d.h3 40000us : hrtimer_rt_defer <-hrtimer_interrupt <idle>-0 0d.h3 40000us : __run_hrtimer <-hrtimer_interrupt <idle>-0 0d.h3 40000us : __remove_hrtimer <-__run_hrtimer <idle>-0 0d.h2 40000us : tick_sched_timer <-__run_hrtimer <idle>-0 0d.h2 40000us : ktime_get <-tick_sched_timer <idle>-0 0d.h2 40000us : tc_get_cycles <-ktime_get <idle>-0 0d.h2 40000us : ktime_add_ns <-ktime_get <idle>-0 0d.h3 40000us!: do_timer <-tick_sched_timer <idle>-0 0d.h3 45000us : update_wall_time <-do_timer <idle>-0 0d.h3 45000us : tc_get_cycles <-update_wall_time <idle>-0 0d.h3 45000us : clocksource_get_next <-update_wall_time <idle>-0 0d.h3 45000us : calc_global_load <-do_timer <idle>-0 0d.h2 45000us : update_process_times <-tick_sched_timer <idle>-0 0d.h2 45000us : account_process_tick <-update_process_times <idle>-0 0d.h2 45000us : scheduler_tick <-update_process_times <idle>-0 0d.h2 45000us : run_local_timers <-update_process_times <idle>-0 0d.h2 45000us : hrtimer_run_queues <-run_local_timers <idle>-0 0d.h2 45000us : raise_softirq <-run_local_timers <idle>-0 0d.h2 45000us : softlockup_tick <-run_local_timers <idle>-0 0d.h2 45000us : rcu_pending <-update_process_times <idle>-0 0d.h2 45000us : run_posix_cpu_timers <-update_process_times <idle>-0 0d.h2 45000us : hrtimer_forward <-tick_sched_timer <idle>-0 0d.h2 45000us : ktime_add_safe <-hrtimer_forward <idle>-0 0d.h2 45000us : ktime_add_safe <-hrtimer_forward <idle>-0 0d.h3 45000us : enqueue_hrtimer <-__run_hrtimer <idle>-0 0d.h2 45000us : tick_program_event <-hrtimer_interrupt <idle>-0 0d.h2 45000us : tick_dev_program_event <-tick_program_event <idle>-0 0d.h2 45000us : ktime_get <-tick_dev_program_event <idle>-0 0d.h2 45000us : tc_get_cycles <-ktime_get <idle>-0 0d.h2 45000us : ktime_add_ns <-ktime_get <idle>-0 0d.h2 45000us : clockevents_program_event <-tick_dev_program_event <idle>-0 0d.h2 45000us : tc_next_event <-clockevents_program_event <idle>-0 0d.h2 45000us : note_interrupt <-handle_level_irq <idle>-0 0d.h3 45000us : at91_aic_unmask_irq <-handle_level_irq <idle>-0 0d.h2 45000us : irq_exit <-_text <idle>-0 0d..3 45000us : __do_softirq <-irq_exit <idle>-0 0d..3 45000us : trigger_softirqs <-__do_softirq <idle>-0 0...1 45000us : default_idle <-cpu_idle <idle>-0 0d..2 45000us : _text <-__irq_svc <idle>-0 0d..2 45000us : irq_enter <-_text <idle>-0 0d..2 45000us : idle_cpu <-irq_enter <idle>-0 0d.h2 45000us : tick_check_idle <-irq_enter <idle>-0 0d.h2 45000us : irq_to_desc <-_text <idle>-0 0d.h2 45000us : handle_level_irq <-_text <idle>-0 0d.h3 45000us : at91_aic_mask_irq <-handle_level_irq <idle>-0 0d.h3 45000us : at91_aic_mask_irq <-handle_level_irq <idle>-0 0d.h3 45000us : redirect_hardirq <-handle_level_irq <idle>-0 0d.h2 45000us : handle_IRQ_event <-handle_level_irq <idle>-0 0d.h2 45000us : ch2_irq <-handle_IRQ_event <idle>-0 0d.h2 45000us : hrtimer_interrupt <-ch2_irq <idle>-0 0d.h2 45000us : ktime_get <-hrtimer_interrupt <idle>-0 0d.h2 45000us : tc_get_cycles <-ktime_get <idle>-0 0d.h2 45000us : ktime_add_ns <-ktime_get <idle>-0 0d.h3 45000us : hrtimer_rt_defer <-hrtimer_interrupt <idle>-0 0d.h3 45000us : __run_hrtimer <-hrtimer_interrupt <idle>-0 0d.h3 45000us : __remove_hrtimer <-__run_hrtimer <idle>-0 0d.h2 45000us : tick_sched_timer <-__run_hrtimer <idle>-0 0d.h2 45000us : ktime_get <-tick_sched_timer <idle>-0 0d.h2 45000us : tc_get_cycles <-ktime_get <idle>-0 0d.h2 45000us : ktime_add_ns <-ktime_get <idle>-0 0d.h3 45000us!: do_timer <-tick_sched_timer <idle>-0 0d.h3 50000us : update_wall_time <-do_timer <idle>-0 0d.h3 50000us : tc_get_cycles <-update_wall_time <idle>-0 0d.h3 50000us : clocksource_get_next <-update_wall_time <idle>-0 0d.h3 50000us : calc_global_load <-do_timer <idle>-0 0d.h2 50000us : update_process_times <-tick_sched_timer <idle>-0 0d.h2 50000us : account_process_tick <-update_process_times <idle>-0 0d.h2 50000us : scheduler_tick <-update_process_times <idle>-0 0d.h2 50000us : run_local_timers <-update_process_times <idle>-0 0d.h2 50000us : hrtimer_run_queues <-run_local_timers <idle>-0 0d.h2 50000us : raise_softirq <-run_local_timers <idle>-0 0d.h2 50000us : softlockup_tick <-run_local_timers <idle>-0 0d.h2 50000us : rcu_pending <-update_process_times <idle>-0 0d.h2 50000us : run_posix_cpu_timers <-update_process_times <idle>-0 0d.h2 50000us : hrtimer_forward <-tick_sched_timer <idle>-0 0d.h2 50000us : ktime_add_safe <-hrtimer_forward <idle>-0 0d.h2 50000us : ktime_add_safe <-hrtimer_forward <idle>-0 0d.h3 50000us : enqueue_hrtimer <-__run_hrtimer <idle>-0 0d.h2 50000us : tick_program_event <-hrtimer_interrupt <idle>-0 0d.h2 50000us : tick_dev_program_event <-tick_program_event <idle>-0 0d.h2 50000us : ktime_get <-tick_dev_program_event <idle>-0 0d.h2 50000us : tc_get_cycles <-ktime_get <idle>-0 0d.h2 50000us : ktime_add_ns <-ktime_get <idle>-0 0d.h2 50000us : clockevents_program_event <-tick_dev_program_event <idle>-0 0d.h2 50000us : tc_next_event <-clockevents_program_event <idle>-0 0d.h2 50000us : note_interrupt <-handle_level_irq <idle>-0 0d.h3 50000us : at91_aic_unmask_irq <-handle_level_irq <idle>-0 0d.h2 50000us : irq_exit <-_text <idle>-0 0d..3 50000us : __do_softirq <-irq_exit <idle>-0 0d..3 50000us : trigger_softirqs <-__do_softirq <idle>-0 0...1 50000us : default_idle <-cpu_idle <idle>-0 0d..2 50000us : _text <-__irq_svc <idle>-0 0d..2 50000us : irq_enter <-_text <idle>-0 0d..2 50000us : idle_cpu <-irq_enter <idle>-0 0d.h2 50000us : tick_check_idle <-irq_enter <idle>-0 0d.h2 50000us : irq_to_desc <-_text <idle>-0 0d.h2 50000us : handle_level_irq <-_text <idle>-0 0d.h3 50000us : at91_aic_mask_irq <-handle_level_irq <idle>-0 0d.h3 50000us : at91_aic_mask_irq <-handle_level_irq <idle>-0 0d.h3 50000us : redirect_hardirq <-handle_level_irq <idle>-0 0d.h2 50000us : handle_IRQ_event <-handle_level_irq <idle>-0 0d.h2 50000us : ch2_irq <-handle_IRQ_event <idle>-0 0d.h2 50000us : hrtimer_interrupt <-ch2_irq <idle>-0 0d.h2 50000us : ktime_get <-hrtimer_interrupt <idle>-0 0d.h2 50000us : tc_get_cycles <-ktime_get <idle>-0 0d.h2 50000us : ktime_add_ns <-ktime_get <idle>-0 0d.h3 50000us : hrtimer_rt_defer <-hrtimer_interrupt <idle>-0 0d.h3 50000us : __run_hrtimer <-hrtimer_interrupt <idle>-0 0d.h3 50000us : __remove_hrtimer <-__run_hrtimer <idle>-0 0d.h2 50000us : sched_rt_period_timer <-__run_hrtimer <idle>-0 0d.h2 50000us : ktime_get <-sched_rt_period_timer <idle>-0 0d.h2 50000us : tc_get_cycles <-ktime_get <idle>-0 0d.h2 50000us : ktime_add_ns <-ktime_get <idle>-0 0d.h2 50000us : hrtimer_forward <-sched_rt_period_timer <idle>-0 0d.h2 50000us : ktime_add_safe <-hrtimer_forward <idle>-0 0d.h2 50000us : ktime_add_safe <-hrtimer_forward <idle>-0 0dNh2 50000us : preempt_schedule <-sched_rt_period_timer <idle>-0 0dNh2 50000us : ktime_get <-sched_rt_period_timer <idle>-0 0dNh2 50000us : tc_get_cycles <-ktime_get <idle>-0 0dNh2 50000us : ktime_add_ns <-ktime_get <idle>-0 0dNh2 50000us : hrtimer_forward <-sched_rt_period_timer <idle>-0 0dNh3 50000us : enqueue_hrtimer <-__run_hrtimer <idle>-0 0dNh3 50000us : hrtimer_rt_defer <-hrtimer_interrupt <idle>-0 0dNh3 50000us : __run_hrtimer <-hrtimer_interrupt <idle>-0 0dNh3 50000us : __remove_hrtimer <-__run_hrtimer <idle>-0 0dNh2 50000us : preempt_schedule <-__run_hrtimer <idle>-0 0dNh2 50000us : tick_sched_timer <-__run_hrtimer <idle>-0 0dNh2 50000us : ktime_get <-tick_sched_timer <idle>-0 0dNh2 50000us : tc_get_cycles <-ktime_get <idle>-0 0dNh2 50000us : ktime_add_ns <-ktime_get <idle>-0 0dNh3 50000us!: do_timer <-tick_sched_timer <idle>-0 0dNh3 55000us : update_wall_time <-do_timer <idle>-0 0dNh3 55000us : tc_get_cycles <-update_wall_time <idle>-0 0dNh3 55000us : second_overflow <-update_wall_time <idle>-0 0dNh3 55000us : clocksource_get_next <-update_wall_time <idle>-0 0dNh3 55000us : preempt_schedule <-clocksource_get_next <idle>-0 0dNh3 55000us : calc_global_load <-do_timer <idle>-0 0dNh2 55000us : preempt_schedule <-tick_sched_timer <idle>-0 0dNh2 55000us : update_process_times <-tick_sched_timer <idle>-0 0dNh2 55000us : account_process_tick <-update_process_times <idle>-0 0dNh2 55000us : scheduler_tick <-update_process_times <idle>-0 0dNh2 55000us : preempt_schedule <-scheduler_tick <idle>-0 0dNh2 55000us : run_local_timers <-update_process_times <idle>-0 0dNh2 55000us : hrtimer_run_queues <-run_local_timers <idle>-0 0dNh2 55000us : raise_softirq <-run_local_timers <idle>-0 0dNh2 55000us : softlockup_tick <-run_local_timers <idle>-0 0dNh2 55000us : rcu_pending <-update_process_times <idle>-0 0dNh2 55000us : run_posix_cpu_timers <-update_process_times <idle>-0 0dNh2 55000us : hrtimer_forward <-tick_sched_timer <idle>-0 0dNh2 55000us : ktime_add_safe <-hrtimer_forward <idle>-0 0dNh2 55000us : ktime_add_safe <-hrtimer_forward <idle>-0 0dNh3 55000us : enqueue_hrtimer <-__run_hrtimer <idle>-0 0dNh2 55000us : preempt_schedule <-hrtimer_interrupt <idle>-0 0dNh2 55000us : tick_program_event <-hrtimer_interrupt <idle>-0 0dNh2 55000us : tick_dev_program_event <-tick_program_event <idle>-0 0dNh2 55000us : ktime_get <-tick_dev_program_event <idle>-0 0dNh2 55000us : tc_get_cycles <-ktime_get <idle>-0 0dNh2 55000us : ktime_add_ns <-ktime_get <idle>-0 0dNh2 55000us : clockevents_program_event <-tick_dev_program_event <idle>-0 0dNh2 55000us : tc_next_event <-clockevents_program_event <idle>-0 0dNh2 55000us : note_interrupt <-handle_level_irq <idle>-0 0dNh3 55000us : at91_aic_unmask_irq <-handle_level_irq <idle>-0 0dNh2 55000us : preempt_schedule <-handle_level_irq <idle>-0 0dNh2 55000us : irq_exit <-_text <idle>-0 0dN.3 55000us : __do_softirq <-irq_exit <idle>-0 0dN.3 55000us : trigger_softirqs <-__do_softirq <idle>-0 0dN.. 55000us : __schedule <-cpu_idle <idle>-0 0dN.. 55000us : rcu_qsctr_inc <-__schedule <idle>-0 0d..2 55000us : put_prev_task_idle <-__schedule <idle>-0 0d..2 55000us : pick_next_task_rt <-__schedule <idle>-0 0...2 55000us : cpu_idle <-rest_init <idle>-0 0...2 55000us : 0:140:R ==> [000] 247: 19:R test -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
