preemption latency trace v1.0.7 on 2.6.9-rc1-bk12-VP-S0 ------------------------------------------------------- latency: 198 us, entries: 293 (293) | [VP:1 KP:1 SP:1 HP:1 #CPUS:1] ----------------- | task: kswapd0/33, uid:0 nice:0 policy:0 rt_prio:0 ----------------- => started at: page_referenced_file+0x3d/0xf0 => ended at: page_referenced_file+0xac/0xf0 =======> 00000001 0.000ms (+0.000ms): page_referenced_file (page_referenced) 00000001 0.000ms (+0.000ms): vma_prio_tree_next (page_referenced_file) 00000001 0.001ms (+0.001ms): prio_tree_first (vma_prio_tree_next) 00000001 0.003ms (+0.001ms): prio_tree_left (prio_tree_first) 00000001 0.004ms (+0.000ms): page_referenced_one (page_referenced_file) 00000002 0.005ms (+0.000ms): page_address (page_referenced_one) 00000001 0.006ms (+0.000ms): vma_prio_tree_next (page_referenced_file) 00000001 0.006ms (+0.001ms): page_referenced_one (page_referenced_file) 00000002 0.008ms (+0.000ms): page_address (page_referenced_one) 00000001 0.008ms (+0.000ms): vma_prio_tree_next (page_referenced_file) 00000001 0.009ms (+0.001ms): page_referenced_one (page_referenced_file) 00000002 0.010ms (+0.000ms): page_address (page_referenced_one) 00000001 0.011ms (+0.000ms): vma_prio_tree_next (page_referenced_file) 00000001 0.011ms (+0.001ms): page_referenced_one (page_referenced_file) 00000002 0.013ms (+0.000ms): page_address (page_referenced_one) 00000001 0.013ms (+0.000ms): vma_prio_tree_next (page_referenced_file) 00000001 0.014ms (+0.001ms): page_referenced_one (page_referenced_file) 00000002 0.015ms (+0.000ms): page_address (page_referenced_one) 00000001 0.015ms (+0.000ms): vma_prio_tree_next (page_referenced_file) 00000001 0.016ms (+0.001ms): page_referenced_one (page_referenced_file) 00000002 0.017ms (+0.000ms): page_address (page_referenced_one) 00000001 0.018ms (+0.000ms): vma_prio_tree_next (page_referenced_file) 00000001 0.018ms (+0.001ms): page_referenced_one (page_referenced_file) 00000002 0.019ms (+0.000ms): page_address (page_referenced_one) 00000001 0.020ms (+0.000ms): vma_prio_tree_next (page_referenced_file) 00000001 0.020ms (+0.001ms): page_referenced_one (page_referenced_file) 00000002 0.022ms (+0.000ms): page_address (page_referenced_one) 00000001 0.022ms (+0.000ms): vma_prio_tree_next (page_referenced_file) 00000001 0.023ms (+0.001ms): page_referenced_one (page_referenced_file) 00000002 0.024ms (+0.000ms): page_address (page_referenced_one) 00000001 0.025ms (+0.000ms): vma_prio_tree_next (page_referenced_file) 00000001 0.025ms (+0.001ms): page_referenced_one (page_referenced_file) 00000002 0.026ms (+0.000ms): page_address (page_referenced_one) 00000001 0.027ms (+0.000ms): vma_prio_tree_next (page_referenced_file) 00000001 0.027ms (+0.001ms): page_referenced_one (page_referenced_file) 00000002 0.029ms (+0.000ms): page_address (page_referenced_one) 00000001 0.029ms (+0.000ms): vma_prio_tree_next (page_referenced_file) 00000001 0.030ms (+0.001ms): page_referenced_one (page_referenced_file) 00000002 0.031ms (+0.000ms): page_address (page_referenced_one) 00000001 0.032ms (+0.000ms): vma_prio_tree_next (page_referenced_file) 00000001 0.032ms (+0.001ms): page_referenced_one (page_referenced_file) 00000002 0.033ms (+0.000ms): page_address (page_referenced_one) 00000001 0.034ms (+0.000ms): vma_prio_tree_next (page_referenced_file) 00000001 0.034ms (+0.001ms): page_referenced_one (page_referenced_file) 00000002 0.036ms (+0.000ms): page_address (page_referenced_one) 00000001 0.036ms (+0.000ms): vma_prio_tree_next (page_referenced_file) 00000001 0.037ms (+0.001ms): page_referenced_one (page_referenced_file) 00000002 0.038ms (+0.000ms): page_address (page_referenced_one) 00000001 0.039ms (+0.000ms): vma_prio_tree_next (page_referenced_file) 00000001 0.039ms (+0.001ms): page_referenced_one (page_referenced_file) 00010001 0.041ms (+0.000ms): do_IRQ (page_referenced_one) 00010001 0.041ms (+0.000ms): do_IRQ (<00000000>) 00010002 0.042ms (+0.002ms): mask_and_ack_8259A (do_IRQ) 00010002 0.044ms (+0.000ms): redirect_hardirq (do_IRQ) 00010001 0.045ms (+0.000ms): handle_IRQ_event (do_IRQ) 00010001 0.045ms (+0.000ms): timer_interrupt (handle_IRQ_event) 00010002 0.046ms (+0.007ms): mark_offset_tsc (timer_interrupt) 00010002 0.053ms (+0.000ms): do_timer (timer_interrupt) 00010002 0.053ms (+0.000ms): update_process_times (do_timer) 00010002 0.054ms (+0.000ms): update_one_process (update_process_times) 00010002 0.054ms (+0.000ms): run_local_timers (update_process_times) 00010002 0.055ms (+0.000ms): raise_softirq (update_process_times) 00010002 0.055ms (+0.000ms): scheduler_tick (update_process_times) 00010002 0.056ms (+0.002ms): sched_clock (scheduler_tick) 00010003 0.058ms (+0.000ms): task_timeslice (scheduler_tick) 00010002 0.059ms (+0.000ms): update_wall_time (do_timer) 00010002 0.059ms (+0.000ms): update_wall_time_one_tick (update_wall_time) 00010002 0.060ms (+0.000ms): profile_tick (timer_interrupt) 00010002 0.061ms (+0.000ms): profile_hook (profile_tick) 00010003 0.061ms (+0.000ms): notifier_call_chain (profile_hook) 00010002 0.062ms (+0.000ms): profile_hit (timer_interrupt) 00010002 0.063ms (+0.000ms): note_interrupt (do_IRQ) 00010002 0.063ms (+0.000ms): end_8259A_irq (do_IRQ) 00010002 0.064ms (+0.001ms): enable_8259A_irq (do_IRQ) 00000002 0.065ms (+0.000ms): do_softirq (do_IRQ) 00000002 0.065ms (+0.000ms): __do_softirq (do_softirq) 00000002 0.066ms (+0.000ms): wake_up_process (do_softirq) 00000002 0.066ms (+0.000ms): try_to_wake_up (wake_up_process) 00000002 0.067ms (+0.000ms): task_rq_lock (try_to_wake_up) 00000003 0.067ms (+0.000ms): activate_task (try_to_wake_up) 00000003 0.067ms (+0.000ms): sched_clock (activate_task) 00000003 0.068ms (+0.000ms): recalc_task_prio (activate_task) 00000003 0.069ms (+0.000ms): effective_prio (recalc_task_prio) 00000003 0.069ms (+0.000ms): enqueue_task (activate_task) 00000002 0.070ms (+0.001ms): preempt_schedule (try_to_wake_up) 00000002 0.072ms (+0.000ms): page_address (page_referenced_one) 00000001 0.072ms (+0.000ms): preempt_schedule (page_referenced_one) 00000001 0.073ms (+0.000ms): vma_prio_tree_next (page_referenced_file) 00000001 0.073ms (+0.001ms): page_referenced_one (page_referenced_file) 00000002 0.074ms (+0.000ms): page_address (page_referenced_one) 00000001 0.075ms (+0.000ms): preempt_schedule (page_referenced_one) 00000001 0.075ms (+0.000ms): vma_prio_tree_next (page_referenced_file) 00000001 0.076ms (+0.000ms): page_referenced_one (page_referenced_file) 00000002 0.077ms (+0.000ms): page_address (page_referenced_one) 00000001 0.077ms (+0.000ms): preempt_schedule (page_referenced_one) 00000001 0.078ms (+0.000ms): vma_prio_tree_next (page_referenced_file) 00000001 0.078ms (+0.000ms): page_referenced_one (page_referenced_file) 00000002 0.079ms (+0.000ms): page_address (page_referenced_one) 00000001 0.080ms (+0.000ms): preempt_schedule (page_referenced_one) 00000001 0.080ms (+0.000ms): vma_prio_tree_next (page_referenced_file) 00000001 0.081ms (+0.001ms): page_referenced_one (page_referenced_file) 00000002 0.082ms (+0.000ms): page_address (page_referenced_one) 00000001 0.083ms (+0.000ms): preempt_schedule (page_referenced_one) 00000001 0.083ms (+0.000ms): vma_prio_tree_next (page_referenced_file) 00000001 0.083ms (+0.001ms): page_referenced_one (page_referenced_file) 00000002 0.084ms (+0.000ms): page_address (page_referenced_one) 00000001 0.085ms (+0.000ms): preempt_schedule (page_referenced_one) 00000001 0.085ms (+0.000ms): vma_prio_tree_next (page_referenced_file) 00000001 0.086ms (+0.001ms): page_referenced_one (page_referenced_file) 00000002 0.087ms (+0.000ms): page_address (page_referenced_one) 00000001 0.088ms (+0.000ms): preempt_schedule (page_referenced_one) 00000001 0.088ms (+0.000ms): vma_prio_tree_next (page_referenced_file) 00000001 0.088ms (+0.000ms): page_referenced_one (page_referenced_file) 00000002 0.089ms (+0.000ms): page_address (page_referenced_one) 00000001 0.090ms (+0.000ms): preempt_schedule (page_referenced_one) 00000001 0.090ms (+0.000ms): vma_prio_tree_next (page_referenced_file) 00000001 0.091ms (+0.001ms): page_referenced_one (page_referenced_file) 00000002 0.092ms (+0.000ms): page_address (page_referenced_one) 00000001 0.093ms (+0.000ms): preempt_schedule (page_referenced_one) 00000001 0.093ms (+0.000ms): vma_prio_tree_next (page_referenced_file) 00000001 0.093ms (+0.001ms): page_referenced_one (page_referenced_file) 00000002 0.094ms (+0.000ms): page_address (page_referenced_one) 00000001 0.095ms (+0.000ms): preempt_schedule (page_referenced_one) 00000001 0.095ms (+0.000ms): vma_prio_tree_next (page_referenced_file) 00000001 0.096ms (+0.001ms): page_referenced_one (page_referenced_file) 00000002 0.097ms (+0.000ms): page_address (page_referenced_one) 00000001 0.097ms (+0.000ms): preempt_schedule (page_referenced_one) 00000001 0.098ms (+0.000ms): vma_prio_tree_next (page_referenced_file) 00000001 0.098ms (+0.000ms): page_referenced_one (page_referenced_file) 00000002 0.099ms (+0.000ms): page_address (page_referenced_one) 00000001 0.100ms (+0.000ms): preempt_schedule (page_referenced_one) 00000001 0.100ms (+0.000ms): vma_prio_tree_next (page_referenced_file) 00000001 0.101ms (+0.000ms): page_referenced_one (page_referenced_file) 00000002 0.102ms (+0.000ms): page_address (page_referenced_one) 00000001 0.102ms (+0.000ms): preempt_schedule (page_referenced_one) 00000001 0.102ms (+0.000ms): vma_prio_tree_next (page_referenced_file) 00000001 0.103ms (+0.001ms): page_referenced_one (page_referenced_file) 00000002 0.104ms (+0.000ms): page_address (page_referenced_one) 00000001 0.105ms (+0.000ms): preempt_schedule (page_referenced_one) 00000001 0.105ms (+0.000ms): vma_prio_tree_next (page_referenced_file) 00000001 0.105ms (+0.001ms): page_referenced_one (page_referenced_file) 00000002 0.106ms (+0.000ms): page_address (page_referenced_one) 00000001 0.107ms (+0.000ms): preempt_schedule (page_referenced_one) 00000001 0.107ms (+0.000ms): vma_prio_tree_next (page_referenced_file) 00000001 0.108ms (+0.001ms): page_referenced_one (page_referenced_file) 00000002 0.109ms (+0.000ms): page_address (page_referenced_one) 00000001 0.110ms (+0.000ms): preempt_schedule (page_referenced_one) 00000001 0.110ms (+0.000ms): vma_prio_tree_next (page_referenced_file) 00000001 0.110ms (+0.001ms): page_referenced_one (page_referenced_file) 00000002 0.112ms (+0.000ms): page_address (page_referenced_one) 00000001 0.112ms (+0.000ms): preempt_schedule (page_referenced_one) 00000001 0.112ms (+0.000ms): vma_prio_tree_next (page_referenced_file) 00000001 0.113ms (+0.001ms): page_referenced_one (page_referenced_file) 00000002 0.114ms (+0.000ms): page_address (page_referenced_one) 00000001 0.114ms (+0.000ms): preempt_schedule (page_referenced_one) 00000001 0.115ms (+0.000ms): vma_prio_tree_next (page_referenced_file) 00000001 0.115ms (+0.001ms): page_referenced_one (page_referenced_file) 00000002 0.116ms (+0.000ms): page_address (page_referenced_one) 00000001 0.117ms (+0.000ms): preempt_schedule (page_referenced_one) 00000001 0.117ms (+0.000ms): vma_prio_tree_next (page_referenced_file) 00000001 0.118ms (+0.001ms): page_referenced_one (page_referenced_file) 00000002 0.119ms (+0.000ms): page_address (page_referenced_one) 00000001 0.119ms (+0.000ms): preempt_schedule (page_referenced_one) 00000001 0.120ms (+0.000ms): vma_prio_tree_next (page_referenced_file) 00000001 0.120ms (+0.000ms): page_referenced_one (page_referenced_file) 00000002 0.121ms (+0.000ms): page_address (page_referenced_one) 00000001 0.122ms (+0.000ms): preempt_schedule (page_referenced_one) 00000001 0.122ms (+0.000ms): vma_prio_tree_next (page_referenced_file) 00000001 0.123ms (+0.001ms): page_referenced_one (page_referenced_file) 00000002 0.124ms (+0.000ms): page_address (page_referenced_one) 00000001 0.124ms (+0.000ms): preempt_schedule (page_referenced_one) 00000001 0.125ms (+0.000ms): vma_prio_tree_next (page_referenced_file) 00000001 0.125ms (+0.000ms): page_referenced_one (page_referenced_file) 00000002 0.126ms (+0.000ms): page_address (page_referenced_one) 00000001 0.127ms (+0.000ms): preempt_schedule (page_referenced_one) 00000001 0.127ms (+0.000ms): vma_prio_tree_next (page_referenced_file) 00000001 0.128ms (+0.001ms): page_referenced_one (page_referenced_file) 00000002 0.129ms (+0.000ms): page_address (page_referenced_one) 00000001 0.129ms (+0.000ms): preempt_schedule (page_referenced_one) 00000001 0.130ms (+0.000ms): vma_prio_tree_next (page_referenced_file) 00000001 0.130ms (+0.001ms): page_referenced_one (page_referenced_file) 00000002 0.131ms (+0.000ms): page_address (page_referenced_one) 00000001 0.132ms (+0.000ms): preempt_schedule (page_referenced_one) 00000001 0.132ms (+0.000ms): vma_prio_tree_next (page_referenced_file) 00000001 0.133ms (+0.001ms): page_referenced_one (page_referenced_file) 00000002 0.134ms (+0.000ms): page_address (page_referenced_one) 00000001 0.135ms (+0.000ms): preempt_schedule (page_referenced_one) 00000001 0.135ms (+0.000ms): vma_prio_tree_next (page_referenced_file) 00000001 0.136ms (+0.001ms): page_referenced_one (page_referenced_file) 00000002 0.137ms (+0.000ms): page_address (page_referenced_one) 00000001 0.137ms (+0.000ms): preempt_schedule (page_referenced_one) 00000001 0.137ms (+0.000ms): vma_prio_tree_next (page_referenced_file) 00000001 0.138ms (+0.001ms): page_referenced_one (page_referenced_file) 00000002 0.139ms (+0.000ms): page_address (page_referenced_one) 00000001 0.140ms (+0.000ms): preempt_schedule (page_referenced_one) 00000001 0.140ms (+0.000ms): vma_prio_tree_next (page_referenced_file) 00000001 0.141ms (+0.001ms): page_referenced_one (page_referenced_file) 00000002 0.142ms (+0.000ms): page_address (page_referenced_one) 00000001 0.142ms (+0.000ms): preempt_schedule (page_referenced_one) 00000001 0.143ms (+0.000ms): vma_prio_tree_next (page_referenced_file) 00000001 0.143ms (+0.001ms): page_referenced_one (page_referenced_file) 00000002 0.144ms (+0.000ms): page_address (page_referenced_one) 00000001 0.145ms (+0.000ms): preempt_schedule (page_referenced_one) 00000001 0.145ms (+0.000ms): vma_prio_tree_next (page_referenced_file) 00000001 0.146ms (+0.001ms): page_referenced_one (page_referenced_file) 00000002 0.147ms (+0.000ms): page_address (page_referenced_one) 00000001 0.147ms (+0.000ms): preempt_schedule (page_referenced_one) 00000001 0.148ms (+0.000ms): vma_prio_tree_next (page_referenced_file) 00000001 0.148ms (+0.001ms): page_referenced_one (page_referenced_file) 00000002 0.149ms (+0.000ms): page_address (page_referenced_one) 00000001 0.150ms (+0.000ms): preempt_schedule (page_referenced_one) 00000001 0.150ms (+0.000ms): vma_prio_tree_next (page_referenced_file) 00000001 0.151ms (+0.001ms): page_referenced_one (page_referenced_file) 00000002 0.152ms (+0.000ms): page_address (page_referenced_one) 00000001 0.152ms (+0.000ms): preempt_schedule (page_referenced_one) 00000001 0.152ms (+0.000ms): vma_prio_tree_next (page_referenced_file) 00000001 0.153ms (+0.001ms): page_referenced_one (page_referenced_file) 00000002 0.154ms (+0.000ms): page_address (page_referenced_one) 00000001 0.154ms (+0.000ms): preempt_schedule (page_referenced_one) 00000001 0.155ms (+0.000ms): vma_prio_tree_next (page_referenced_file) 00000001 0.155ms (+0.000ms): page_referenced_one (page_referenced_file) 00000002 0.156ms (+0.000ms): page_address (page_referenced_one) 00000001 0.157ms (+0.000ms): preempt_schedule (page_referenced_one) 00000001 0.157ms (+0.000ms): vma_prio_tree_next (page_referenced_file) 00000001 0.158ms (+0.001ms): page_referenced_one (page_referenced_file) 00000002 0.159ms (+0.000ms): page_address (page_referenced_one) 00000001 0.159ms (+0.000ms): preempt_schedule (page_referenced_one) 00000001 0.160ms (+0.000ms): vma_prio_tree_next (page_referenced_file) 00000001 0.160ms (+0.001ms): page_referenced_one (page_referenced_file) 00000002 0.161ms (+0.000ms): page_address (page_referenced_one) 00000001 0.162ms (+0.000ms): preempt_schedule (page_referenced_one) 00000001 0.162ms (+0.000ms): vma_prio_tree_next (page_referenced_file) 00000001 0.163ms (+0.000ms): page_referenced_one (page_referenced_file) 00000002 0.164ms (+0.000ms): page_address (page_referenced_one) 00000001 0.164ms (+0.000ms): preempt_schedule (page_referenced_one) 00000001 0.165ms (+0.000ms): vma_prio_tree_next (page_referenced_file) 00000001 0.165ms (+0.000ms): page_referenced_one (page_referenced_file) 00000002 0.166ms (+0.000ms): page_address (page_referenced_one) 00000001 0.166ms (+0.000ms): preempt_schedule (page_referenced_one) 00000001 0.167ms (+0.000ms): vma_prio_tree_next (page_referenced_file) 00000001 0.167ms (+0.001ms): page_referenced_one (page_referenced_file) 00000002 0.168ms (+0.000ms): page_address (page_referenced_one) 00000001 0.169ms (+0.000ms): preempt_schedule (page_referenced_one) 00000001 0.169ms (+0.000ms): vma_prio_tree_next (page_referenced_file) 00000001 0.170ms (+0.000ms): page_referenced_one (page_referenced_file) 00000002 0.170ms (+0.000ms): page_address (page_referenced_one) 00000001 0.171ms (+0.000ms): preempt_schedule (page_referenced_one) 00000001 0.171ms (+0.000ms): vma_prio_tree_next (page_referenced_file) 00000001 0.172ms (+0.000ms): page_referenced_one (page_referenced_file) 00000002 0.173ms (+0.000ms): page_address (page_referenced_one) 00000001 0.173ms (+0.000ms): preempt_schedule (page_referenced_one) 00000001 0.174ms (+0.000ms): vma_prio_tree_next (page_referenced_file) 00000001 0.174ms (+0.001ms): page_referenced_one (page_referenced_file) 00000002 0.175ms (+0.000ms): page_address (page_referenced_one) 00000001 0.176ms (+0.000ms): preempt_schedule (page_referenced_one) 00000001 0.176ms (+0.000ms): vma_prio_tree_next (page_referenced_file) 00000001 0.177ms (+0.001ms): page_referenced_one (page_referenced_file) 00000002 0.178ms (+0.000ms): page_address (page_referenced_one) 00000001 0.178ms (+0.000ms): preempt_schedule (page_referenced_one) 00000001 0.178ms (+0.000ms): vma_prio_tree_next (page_referenced_file) 00000001 0.179ms (+0.000ms): page_referenced_one (page_referenced_file) 00000002 0.180ms (+0.000ms): page_address (page_referenced_one) 00000001 0.181ms (+0.000ms): preempt_schedule (page_referenced_one) 00000001 0.181ms (+0.000ms): vma_prio_tree_next (page_referenced_file) 00000001 0.182ms (+0.000ms): page_referenced_one (page_referenced_file) 00000002 0.182ms (+0.000ms): page_address (page_referenced_one) 00000001 0.183ms (+0.000ms): preempt_schedule (page_referenced_one) 00000001 0.183ms (+0.000ms): vma_prio_tree_next (page_referenced_file) 00000001 0.184ms (+0.000ms): page_referenced_one (page_referenced_file) 00000002 0.185ms (+0.000ms): page_address (page_referenced_one) 00000001 0.185ms (+0.000ms): preempt_schedule (page_referenced_one) 00000001 0.186ms (+0.000ms): vma_prio_tree_next (page_referenced_file) 00000001 0.186ms (+0.001ms): page_referenced_one (page_referenced_file) 00000002 0.187ms (+0.000ms): page_address (page_referenced_one) 00000001 0.188ms (+0.000ms): preempt_schedule (page_referenced_one) 00000001 0.188ms (+0.000ms): vma_prio_tree_next (page_referenced_file) 00000001 0.189ms (+0.000ms): page_referenced_one (page_referenced_file) 00000002 0.190ms (+0.000ms): page_address (page_referenced_one) 00000001 0.190ms (+0.000ms): preempt_schedule (page_referenced_one) 00000001 0.190ms (+0.000ms): vma_prio_tree_next (page_referenced_file) 00000001 0.191ms (+0.000ms): page_referenced_one (page_referenced_file) 00000002 0.192ms (+0.000ms): page_address (page_referenced_one) 00000001 0.192ms (+0.000ms): preempt_schedule (page_referenced_one) 00000001 0.193ms (+0.000ms): vma_prio_tree_next (page_referenced_file) 00000001 0.193ms (+0.001ms): page_referenced_one (page_referenced_file) 00000002 0.194ms (+0.000ms): page_address (page_referenced_one) 00000001 0.195ms (+0.000ms): preempt_schedule (page_referenced_one) 00000001 0.195ms (+0.000ms): vma_prio_tree_next (page_referenced_file) 00000001 0.196ms (+0.001ms): page_referenced_one (page_referenced_file) 00000002 0.197ms (+0.000ms): page_address (page_referenced_one) 00000001 0.198ms (+0.000ms): preempt_schedule (page_referenced_one) 00000001 0.198ms (+0.000ms): sub_preempt_count (page_referenced_file) 00000001 0.199ms (+0.000ms): update_max_trace (check_preempt_timing)