[PATCH] sched/debug: Add load-tracking statistics to task

[Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>]

At present we print per-entity load-tracking statistics for
cfs_rq of cgroups/runqueues. Given that per task statistics
is maintained, it can be used to know the contribution made
by the task to its parenting cfs_rq level.

This patch adds per-task load-tracking statistics to
/proc/<PID>/sched.

Signed-off-by: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>
---
 kernel/sched/debug.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/kernel/sched/debug.c b/kernel/sched/debug.c
index d1c0c81..375225b 100644
--- a/kernel/sched/debug.c
+++ b/kernel/sched/debug.c
@@ -567,6 +567,12 @@ void proc_sched_show_task(struct task_struct *p, struct seq_file *m)
 		   "nr_involuntary_switches", (long long)p->nivcsw);

 	P(se.load.weight);
+#if defined(CONFIG_SMP) && defined(CONFIG_FAIR_GROUP_SCHED)
+	P(se.avg.runnable_avg_sum);
+	P(se.avg.runnable_avg_period);
+	P(se.avg.load_avg_contrib);
+	P(se.avg.decay_count);
+#endif
 	P(policy);
 	P(prio);
 #undef PN
--
1.7.11.6