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authorPeter Zijlstra <a.p.zijlstra@chello.nl>2008-04-19 19:45:00 +0200
committerIngo Molnar <mingo@elte.hu>2008-04-19 19:45:00 +0200
commitd19ca30874f2ad343d054e0b5c0576744afeecd4 (patch)
treed22f35b7290fff3547d030893de1783695d9978b
parent18d95a2832c1392a2d63227a7a6d433cb9f2037e (diff)
sched: debug: add some debug code to handle the full hierarchy
Add some extra debug output so we can get a better overview of the full hierarchy. We print the cgroup path after each cfs_rq, so we can see what group we're looking at. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Ingo Molnar <mingo@elte.hu>
-rw-r--r--kernel/sched_debug.c35
1 files changed, 32 insertions, 3 deletions
diff --git a/kernel/sched_debug.c b/kernel/sched_debug.c
index 3d09106990c..be42548b67b 100644
--- a/kernel/sched_debug.c
+++ b/kernel/sched_debug.c
@@ -67,14 +67,24 @@ 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, "%9Ld.%06ld %9Ld.%06ld %9Ld.%06ld\n",
+ SEQ_printf(m, "%9Ld.%06ld %9Ld.%06ld %9Ld.%06ld",
SPLIT_NS(p->se.vruntime),
SPLIT_NS(p->se.sum_exec_runtime),
SPLIT_NS(p->se.sum_sleep_runtime));
#else
- SEQ_printf(m, "%15Ld %15Ld %15Ld.%06ld %15Ld.%06ld %15Ld.%06ld\n",
+ SEQ_printf(m, "%15Ld %15Ld %15Ld.%06ld %15Ld.%06ld %15Ld.%06ld",
0LL, 0LL, 0LL, 0L, 0LL, 0L, 0LL, 0L);
#endif
+
+#ifdef CONFIG_CGROUP_SCHED
+ {
+ char path[64];
+
+ cgroup_path(task_group(p)->css.cgroup, path, sizeof(path));
+ SEQ_printf(m, " %s", path);
+ }
+#endif
+ SEQ_printf(m, "\n");
}
static void print_rq(struct seq_file *m, struct rq *rq, int rq_cpu)
@@ -109,7 +119,21 @@ void print_cfs_rq(struct seq_file *m, int cpu, struct cfs_rq *cfs_rq)
struct sched_entity *last;
unsigned long flags;
- SEQ_printf(m, "\ncfs_rq\n");
+#ifndef CONFIG_CGROUP_SCHED
+ SEQ_printf(m, "\ncfs_rq[%d]:\n", cpu);
+#else
+ char path[128] = "";
+ struct cgroup *cgroup = NULL;
+ struct task_group *tg = cfs_rq->tg;
+
+ if (tg)
+ cgroup = tg->css.cgroup;
+
+ if (cgroup)
+ cgroup_path(cgroup, path, sizeof(path));
+
+ SEQ_printf(m, "\ncfs_rq[%d]:%s\n", cpu, path);
+#endif
SEQ_printf(m, " .%-30s: %Ld.%06ld\n", "exec_clock",
SPLIT_NS(cfs_rq->exec_clock));
@@ -143,6 +167,11 @@ void print_cfs_rq(struct seq_file *m, int cpu, struct cfs_rq *cfs_rq)
#endif
SEQ_printf(m, " .%-30s: %ld\n", "nr_spread_over",
cfs_rq->nr_spread_over);
+#ifdef CONFIG_FAIR_GROUP_SCHED
+#ifdef CONFIG_SMP
+ SEQ_printf(m, " .%-30s: %lu\n", "shares", cfs_rq->shares);
+#endif
+#endif
}
static void print_cpu(struct seq_file *m, int cpu)