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authorIngo Molnar <mingo@elte.hu>2007-10-15 17:00:05 +0200
committerIngo Molnar <mingo@elte.hu>2007-10-15 17:00:05 +0200
commit67e12eac328b276dca7e61640632ed996ff1a93a (patch)
tree9e01b55090bbcbebe5880ca8b1afb2b9e2d2efd9 /kernel/sched_debug.c
parentaeb73b040399f94698b4f64dd058cae39187e18d (diff)
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>
Diffstat (limited to 'kernel/sched_debug.c')
-rw-r--r--kernel/sched_debug.c30
1 files changed, 27 insertions, 3 deletions
diff --git a/kernel/sched_debug.c b/kernel/sched_debug.c
index 6b789dae7fdf..75ccf7aa98f3 100644
--- a/kernel/sched_debug.c
+++ b/kernel/sched_debug.c
@@ -44,7 +44,8 @@ print_task(struct seq_file *m, struct rq *rq, struct task_struct *p)
(long long)(p->nvcsw + p->nivcsw),
p->prio);
#ifdef CONFIG_SCHEDSTATS
- SEQ_printf(m, "%15Ld %15Ld %15Ld %15Ld %15Ld\n",
+ SEQ_printf(m, "%15Ld %15Ld %15Ld %15Ld %15Ld %15Ld\n",
+ (long long)p->se.vruntime,
(long long)p->se.sum_exec_runtime,
(long long)p->se.sum_wait_runtime,
(long long)p->se.sum_sleep_runtime,
@@ -64,10 +65,10 @@ static void print_rq(struct seq_file *m, struct rq *rq, int rq_cpu)
"\nrunnable tasks:\n"
" task PID tree-key delta waiting"
" switches prio"
- " sum-exec sum-wait sum-sleep"
+ " exec-runtime sum-exec sum-wait sum-sleep"
" wait-overrun wait-underrun\n"
"------------------------------------------------------------------"
- "----------------"
+ "--------------------------------"
"------------------------------------------------"
"--------------------------------\n");
@@ -108,6 +109,11 @@ 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;
+ struct rq *rq = &per_cpu(runqueues, cpu);
+ struct sched_entity *last;
+ unsigned long flags;
+
SEQ_printf(m, "\ncfs_rq\n");
#define P(x) \
@@ -115,6 +121,23 @@ 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)
+ MIN_vruntime = (__pick_next_entity(cfs_rq))->vruntime;
+ last = __pick_last_entity(cfs_rq);
+ if (last)
+ max_vruntime = last->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", "max_vruntime",
+ (long long)max_vruntime);
+ spread = max_vruntime - MIN_vruntime;
+ SEQ_printf(m, " .%-30s: %Ld\n", "spread",
+ (long long)spread);
+
P(wait_runtime);
P(wait_runtime_overruns);
P(wait_runtime_underruns);
@@ -243,6 +266,7 @@ void proc_sched_show_task(struct task_struct *p, struct seq_file *m)
P(se.wait_start_fair);
P(se.exec_start);
P(se.sleep_start_fair);
+ P(se.vruntime);
P(se.sum_exec_runtime);
#ifdef CONFIG_SCHEDSTATS

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