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sched: add se->vruntime debugging
debug se->vruntime fields. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Mike Galbraith <efault@gmx.de>
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@ -44,7 +44,8 @@ print_task(struct seq_file *m, struct rq *rq, struct task_struct *p)
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(long long)(p->nvcsw + p->nivcsw),
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p->prio);
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#ifdef CONFIG_SCHEDSTATS
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SEQ_printf(m, "%15Ld %15Ld %15Ld %15Ld %15Ld\n",
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SEQ_printf(m, "%15Ld %15Ld %15Ld %15Ld %15Ld %15Ld\n",
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(long long)p->se.vruntime,
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(long long)p->se.sum_exec_runtime,
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(long long)p->se.sum_wait_runtime,
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(long long)p->se.sum_sleep_runtime,
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@ -64,10 +65,10 @@ static void print_rq(struct seq_file *m, struct rq *rq, int rq_cpu)
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"\nrunnable tasks:\n"
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" task PID tree-key delta waiting"
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" switches prio"
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" sum-exec sum-wait sum-sleep"
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" exec-runtime sum-exec sum-wait sum-sleep"
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" wait-overrun wait-underrun\n"
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"------------------------------------------------------------------"
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"----------------"
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"--------------------------------"
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"------------------------------------------------"
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"--------------------------------\n");
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@ -108,6 +109,11 @@ print_cfs_rq_runtime_sum(struct seq_file *m, int cpu, struct cfs_rq *cfs_rq)
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void print_cfs_rq(struct seq_file *m, int cpu, struct cfs_rq *cfs_rq)
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{
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s64 MIN_vruntime = -1, max_vruntime = -1, spread;
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struct rq *rq = &per_cpu(runqueues, cpu);
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struct sched_entity *last;
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unsigned long flags;
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SEQ_printf(m, "\ncfs_rq\n");
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#define P(x) \
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@ -115,6 +121,23 @@ void print_cfs_rq(struct seq_file *m, int cpu, struct cfs_rq *cfs_rq)
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P(fair_clock);
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P(exec_clock);
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P(min_vruntime);
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spin_lock_irqsave(&rq->lock, flags);
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if (cfs_rq->rb_leftmost)
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MIN_vruntime = (__pick_next_entity(cfs_rq))->vruntime;
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last = __pick_last_entity(cfs_rq);
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if (last)
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max_vruntime = last->vruntime;
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spin_unlock_irqrestore(&rq->lock, flags);
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SEQ_printf(m, " .%-30s: %Ld\n", "MIN_vruntime",
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(long long)MIN_vruntime);
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SEQ_printf(m, " .%-30s: %Ld\n", "max_vruntime",
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(long long)max_vruntime);
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spread = max_vruntime - MIN_vruntime;
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SEQ_printf(m, " .%-30s: %Ld\n", "spread",
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(long long)spread);
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P(wait_runtime);
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P(wait_runtime_overruns);
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P(wait_runtime_underruns);
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@ -243,6 +266,7 @@ void proc_sched_show_task(struct task_struct *p, struct seq_file *m)
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P(se.wait_start_fair);
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P(se.exec_start);
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P(se.sleep_start_fair);
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P(se.vruntime);
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P(se.sum_exec_runtime);
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#ifdef CONFIG_SCHEDSTATS
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