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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>
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18d95a2832
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d19ca30874
1 changed files with 32 additions and 3 deletions
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@ -67,14 +67,24 @@ 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, "%9Ld.%06ld %9Ld.%06ld %9Ld.%06ld\n",
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SEQ_printf(m, "%9Ld.%06ld %9Ld.%06ld %9Ld.%06ld",
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SPLIT_NS(p->se.vruntime),
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SPLIT_NS(p->se.sum_exec_runtime),
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SPLIT_NS(p->se.sum_sleep_runtime));
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#else
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SEQ_printf(m, "%15Ld %15Ld %15Ld.%06ld %15Ld.%06ld %15Ld.%06ld\n",
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SEQ_printf(m, "%15Ld %15Ld %15Ld.%06ld %15Ld.%06ld %15Ld.%06ld",
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0LL, 0LL, 0LL, 0L, 0LL, 0L, 0LL, 0L);
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#endif
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#ifdef CONFIG_CGROUP_SCHED
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{
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char path[64];
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cgroup_path(task_group(p)->css.cgroup, path, sizeof(path));
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SEQ_printf(m, " %s", path);
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}
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#endif
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SEQ_printf(m, "\n");
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}
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static void print_rq(struct seq_file *m, struct rq *rq, int rq_cpu)
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@ -109,7 +119,21 @@ void print_cfs_rq(struct seq_file *m, int cpu, struct cfs_rq *cfs_rq)
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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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#ifndef CONFIG_CGROUP_SCHED
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SEQ_printf(m, "\ncfs_rq[%d]:\n", cpu);
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#else
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char path[128] = "";
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struct cgroup *cgroup = NULL;
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struct task_group *tg = cfs_rq->tg;
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if (tg)
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cgroup = tg->css.cgroup;
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if (cgroup)
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cgroup_path(cgroup, path, sizeof(path));
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SEQ_printf(m, "\ncfs_rq[%d]:%s\n", cpu, path);
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#endif
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SEQ_printf(m, " .%-30s: %Ld.%06ld\n", "exec_clock",
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SPLIT_NS(cfs_rq->exec_clock));
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@ -143,6 +167,11 @@ void print_cfs_rq(struct seq_file *m, int cpu, struct cfs_rq *cfs_rq)
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#endif
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SEQ_printf(m, " .%-30s: %ld\n", "nr_spread_over",
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cfs_rq->nr_spread_over);
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#ifdef CONFIG_FAIR_GROUP_SCHED
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#ifdef CONFIG_SMP
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SEQ_printf(m, " .%-30s: %lu\n", "shares", cfs_rq->shares);
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#endif
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#endif
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}
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static void print_cpu(struct seq_file *m, int cpu)
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