diff options
| author | Ingo Molnar <mingo@elte.hu> | 2007-10-15 17:00:05 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2007-10-15 17:00:05 +0200 |
| commit | 67e12eac328b276dca7e61640632ed996ff1a93a (patch) | |
| tree | 9e01b55090bbcbebe5880ca8b1afb2b9e2d2efd9 /kernel/sched_debug.c | |
| parent | sched: clean up new task placement (diff) | |
| download | linux-67e12eac328b276dca7e61640632ed996ff1a93a.tar.xz linux-67e12eac328b276dca7e61640632ed996ff1a93a.zip | |
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.c | 30 |
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 |