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sched: Maintain per-rq runnable averages

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Since runqueues do not have a corresponding sched_entity we instead embed a
sched_avg structure directly.

Signed-off-by: Ben Segall <bsegall@google.com>
Reviewed-by: Paul Turner <pjt@google.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/20120823141506.442637130@google.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Ben Segall 2012-10-04 12:51:20 +02:00 • committed by Ingo Molnar
parent 9d85f21c94
commit 18bf2805d9
3 changed files with 26 additions and 4 deletions
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10
kernel/sched/debug.c
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@ -61,14 +61,20 @@ static unsigned long nsec_low(unsigned long long nsec)
static void print_cfs_group_stats(struct seq_file *m, int cpu, struct task_group *tg)
{
struct sched_entity *se = tg->se[cpu];
if (!se)
return;
#define P(F) \
SEQ_printf(m, " .%-30s: %lld\n", #F, (long long)F)
#define PN(F) \
SEQ_printf(m, " .%-30s: %lld.%06ld\n", #F, SPLIT_NS((long long)F))
if (!se) {
struct sched_avg *avg = &cpu_rq(cpu)->avg;
P(avg->runnable_avg_sum);
P(avg->runnable_avg_period);
return;
}
PN(se->exec_start);
PN(se->vruntime);
PN(se->sum_exec_runtime);