Commit db6ea2fb authored May 03, 2016 by Wanpeng Li Committed by Ingo Molnar May 05, 2016

sched/debug: Print out idle balance values even on !CONFIG_SCHEDSTATS kernels



The max_idle_balance_cost and avg_idle values which are tracked and ar used to
capture short idle incidents, are not associated with schedstats, however the
information of these two values isn't printed out on !CONFIG_SCHEDSTATS kernels.

Fix this by moving the value printout out of the CONFIG_SCHEDSTATS section.

Signed-off-by: Wanpeng Li <wanpeng.li@hotmail.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1462250305-4523-1-git-send-email-wanpeng.li@hotmail.com


Signed-off-by: Ingo Molnar <mingo@kernel.org>

parent 7b20b916

kernel/sched/debug.c

+5 −5

Original line number	Diff line number	Diff line
		@@ -626,15 +626,16 @@ do { \
		#undef P
		#undef PN

		#ifdef CONFIG_SCHEDSTATS
		#define P(n) SEQ_printf(m, " .%-30s: %d\n", #n, rq->n);
		#define P64(n) SEQ_printf(m, " .%-30s: %Ld\n", #n, rq->n);

		#ifdef CONFIG_SMP
		#define P64(n) SEQ_printf(m, " .%-30s: %Ld\n", #n, rq->n);
		P64(avg_idle);
		P64(max_idle_balance_cost);
		#undef P64
		#endif

		#ifdef CONFIG_SCHEDSTATS
		#define P(n) SEQ_printf(m, " .%-30s: %d\n", #n, rq->n);

		if (schedstat_enabled()) {
		P(yld_count);
		P(sched_count);
		@@ -644,7 +645,6 @@ do { \
		}

		#undef P
		#undef P64
		#endif
		spin_lock_irqsave(&sched_debug_lock, flags);
		print_cfs_stats(m, cpu);

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