preemption latency trace v1.0.6 on 2.6.9-rc1-bk12-VP-R6
--------------------------------------------------
 latency: 268 us, entries: 39 (39)  [VP:1 KP:1 SP:1 HP:1 #CPUS:1]
    -----------------
    | task: kswapd0/33, uid:0 nice:0 policy:0 rt_prio:0
    -----------------
 => started at: get_swap_page+0x28/0x280
 => ended at:   get_swap_page+0x96/0x280
=======>
00000001 0.000ms (+0.125ms): get_swap_page (add_to_swap)
00010002 0.125ms (+0.000ms): do_IRQ (get_swap_page)
00010002 0.125ms (+0.000ms): do_IRQ (<00000000>)
00010003 0.125ms (+0.003ms): mask_and_ack_8259A (do_IRQ)
00010003 0.129ms (+0.000ms): generic_redirect_hardirq (do_IRQ)
00010002 0.129ms (+0.000ms): generic_handle_IRQ_event (do_IRQ)
00010002 0.130ms (+0.000ms): timer_interrupt (generic_handle_IRQ_event)
00010003 0.130ms (+0.009ms): mark_offset_tsc (timer_interrupt)
00010003 0.140ms (+0.000ms): do_timer (timer_interrupt)
00010003 0.141ms (+0.000ms): update_process_times (do_timer)
00010003 0.141ms (+0.000ms): update_one_process (update_process_times)
00010003 0.142ms (+0.000ms): run_local_timers (update_process_times)
00010003 0.142ms (+0.000ms): raise_softirq (update_process_times)
00010003 0.142ms (+0.000ms): scheduler_tick (update_process_times)
00010003 0.143ms (+0.002ms): sched_clock (scheduler_tick)
00010004 0.145ms (+0.000ms): task_timeslice (scheduler_tick)
00010003 0.146ms (+0.000ms): update_wall_time (do_timer)
00010003 0.146ms (+0.000ms): update_wall_time_one_tick (update_wall_time)
00010003 0.147ms (+0.000ms): profile_tick (timer_interrupt)
00010003 0.147ms (+0.000ms): profile_hook (profile_tick)
00010004 0.148ms (+0.000ms): notifier_call_chain (profile_hook)
00010003 0.148ms (+0.001ms): profile_hit (timer_interrupt)
00010003 0.149ms (+0.000ms): generic_note_interrupt (do_IRQ)
00010003 0.150ms (+0.000ms): end_8259A_irq (do_IRQ)
00010003 0.150ms (+0.001ms): enable_8259A_irq (do_IRQ)
00000003 0.152ms (+0.000ms): do_softirq (do_IRQ)
00000003 0.152ms (+0.000ms): __do_softirq (do_softirq)
00000003 0.153ms (+0.000ms): wake_up_process (do_softirq)
00000003 0.153ms (+0.000ms): try_to_wake_up (wake_up_process)
00000003 0.153ms (+0.000ms): task_rq_lock (try_to_wake_up)
00000004 0.154ms (+0.000ms): activate_task (try_to_wake_up)
00000004 0.154ms (+0.000ms): sched_clock (activate_task)
00000004 0.155ms (+0.000ms): recalc_task_prio (activate_task)
00000004 0.155ms (+0.000ms): effective_prio (recalc_task_prio)
00000004 0.156ms (+0.000ms): enqueue_task (activate_task)
00000003 0.157ms (+0.111ms): preempt_schedule (try_to_wake_up)
00000001 0.268ms (+0.000ms): preempt_schedule (get_swap_page)
00000001 0.268ms (+0.000ms): sub_preempt_count (get_swap_page)
00000001 0.269ms (+0.000ms): update_max_trace (check_preempt_timing)