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Commit 86d9560c authored by Ingo Molnar's avatar Ingo Molnar
Browse files

sched: add more vruntime statistics 



add more vruntime statistics.

Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
Signed-off-by: default avatarMike Galbraith <efault@gmx.de>
Signed-off-by: default avatarPeter Zijlstra <a.p.zijlstra@chello.nl>
Reviewed-by: default avatarThomas Gleixner <tglx@linutronix.de>
parent 9014623c

kernel/sched_debug.c

+9 −2
Original line number Diff line number Diff line
@@ -109,7 +109,8 @@ print_cfs_rq_runtime_sum(struct seq_file *m, int cpu, struct cfs_rq *cfs_rq) 


void print_cfs_rq(struct seq_file *m, int cpu, struct cfs_rq *cfs_rq)

{

	s64 MIN_vruntime = -1, max_vruntime = -1, spread;

	s64 MIN_vruntime = -1, min_vruntime, max_vruntime = -1,

		spread, rq0_min_vruntime, spread0;

	struct rq *rq = &per_cpu(runqueues, cpu);

	struct sched_entity *last;

	unsigned long flags;
@@ -121,7 +122,6 @@ void print_cfs_rq(struct seq_file *m, int cpu, struct cfs_rq *cfs_rq) 


	P(fair_clock);

	P(exec_clock);

	P(min_vruntime);



	spin_lock_irqsave(&rq->lock, flags);

	if (cfs_rq->rb_leftmost)
@@ -129,14 +129,21 @@ void print_cfs_rq(struct seq_file *m, int cpu, struct cfs_rq *cfs_rq) 
	last = __pick_last_entity(cfs_rq);

	if (last)

		max_vruntime = last->vruntime;

	min_vruntime = rq->cfs.min_vruntime;

	rq0_min_vruntime = per_cpu(runqueues, 0).cfs.min_vruntime;

	spin_unlock_irqrestore(&rq->lock, flags);

	SEQ_printf(m, "  .%-30s: %Ld\n", "MIN_vruntime",

			(long long)MIN_vruntime);

	SEQ_printf(m, "  .%-30s: %Ld\n", "min_vruntime",

			(long long)min_vruntime);

	SEQ_printf(m, "  .%-30s: %Ld\n", "max_vruntime",

			(long long)max_vruntime);

	spread = max_vruntime - MIN_vruntime;

	SEQ_printf(m, "  .%-30s: %Ld\n", "spread",

			(long long)spread);

	spread0 = min_vruntime - rq0_min_vruntime;

	SEQ_printf(m, "  .%-30s: %Ld\n", "spread0",

			(long long)spread0);



	P(wait_runtime);

	P(wait_runtime_overruns);