Commit-ID: b0151c25548cacc50771a7930475727c6c8ee869
Gitweb: http://git.kernel.org/tip/b0151c25548cacc50771a7930475727c6c8ee869
Author: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
AuthorDate: Fri, 14 Apr 2017 17:29:16 +0200
Committer: Ingo Molnar <mingo@xxxxxxxxxx>
CommitDate: Mon, 15 May 2017 10:15:25 +0200
sched/debug: Print the scheduler topology group mask
In order to determine the balance_cpu (for should_we_balance()) we need
the sched_group_mask() for overlapping domains.
Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Cc: Mike Galbraith <efault@xxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: linux-kernel@xxxxxxxxxxxxxxx
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
---
kernel/sched/topology.c | 12 +++++++++++-
1 file changed, 11 insertions(+), 1 deletion(-)
diff --git a/kernel/sched/topology.c b/kernel/sched/topology.c
index 6b10e0a..3d50ee3 100644
--- a/kernel/sched/topology.c
+++ b/kernel/sched/topology.c
@@ -82,12 +82,22 @@ static int sched_domain_debug_one(struct sched_domain *sd, int cpu, int level,
printk(KERN_CONT " %*pbl",
cpumask_pr_args(sched_group_cpus(group)));
+
+ if ((sd->flags & SD_OVERLAP) && !cpumask_full(sched_group_mask(group))) {
+ printk(KERN_CONT " (mask: %*pbl)",
+ cpumask_pr_args(sched_group_mask(group)));
+ }
+
if (group->sgc->capacity != SCHED_CAPACITY_SCALE) {
- printk(KERN_CONT " (cpu_capacity = %lu)",
+ printk(KERN_CONT " (cpu_capacity: %lu)",
group->sgc->capacity);
}
group = group->next;
+
+ if (group != sd->groups)
+ printk(KERN_CONT ",");
+
} while (group != sd->groups);
printk(KERN_CONT "\n");
--
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