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sched debug: check spread

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debug feature: check how well we schedule within a reasonable
vruntime 'spread' range. (note that CPU overload can increase
the spread, so this is not a hard condition, but normal loads
should be within the spread.)

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
This commit is contained in:
Peter Zijlstra 2007-10-15 17:00:10 +02:00 • committed by Ingo Molnar
parent d822ceceda
commit ddc9729750
3 changed files with 22 additions and 0 deletions
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kernel/sched_debug.c
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@ -140,6 +140,8 @@ void print_cfs_rq(struct seq_file *m, int cpu, struct cfs_rq *cfs_rq)
SEQ_printf(m, " .%-30s: %ld\n", "bkl_cnt",
rq->bkl_cnt);
#endif
SEQ_printf(m, " .%-30s: %ld\n", "nr_spread_over",
cfs_rq->nr_spread_over);
}
static void print_cpu(struct seq_file *m, int cpu)