Commit-ID: 37e6bae8395a94b4dd934c92b02b9408be992365 Gitweb: http://git.kernel.org/tip/37e6bae8395a94b4dd934c92b02b9408be992365 Author: Alex Shi <alex....@linaro.org> AuthorDate: Thu, 23 Jan 2014 18:39:54 +0800 Committer: Ingo Molnar <mi...@kernel.org> CommitDate: Tue, 11 Feb 2014 09:58:18 +0100
sched: Add statistic for newidle load balance cost Tracking rq->max_idle_balance_cost and sd->max_newidle_lb_cost. It's useful to know these values in debug mode. Signed-off-by: Alex Shi <alex....@linaro.org> Signed-off-by: Peter Zijlstra <pet...@infradead.org> Link: http://lkml.kernel.org/r/52e0f3bf.5020...@linaro.org Signed-off-by: Ingo Molnar <mi...@kernel.org> --- kernel/sched/core.c | 9 ++++++--- kernel/sched/debug.c | 1 + 2 files changed, 7 insertions(+), 3 deletions(-) diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 3068f37..fb9764f 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -4811,7 +4811,7 @@ set_table_entry(struct ctl_table *entry, static struct ctl_table * sd_alloc_ctl_domain_table(struct sched_domain *sd) { - struct ctl_table *table = sd_alloc_ctl_entry(13); + struct ctl_table *table = sd_alloc_ctl_entry(14); if (table == NULL) return NULL; @@ -4839,9 +4839,12 @@ sd_alloc_ctl_domain_table(struct sched_domain *sd) sizeof(int), 0644, proc_dointvec_minmax, false); set_table_entry(&table[10], "flags", &sd->flags, sizeof(int), 0644, proc_dointvec_minmax, false); - set_table_entry(&table[11], "name", sd->name, + set_table_entry(&table[11], "max_newidle_lb_cost", + &sd->max_newidle_lb_cost, + sizeof(long), 0644, proc_doulongvec_minmax, false); + set_table_entry(&table[12], "name", sd->name, CORENAME_MAX_SIZE, 0444, proc_dostring, false); - /* &table[12] is terminator */ + /* &table[13] is terminator */ return table; } diff --git a/kernel/sched/debug.c b/kernel/sched/debug.c index 31b908d..f3344c3 100644 --- a/kernel/sched/debug.c +++ b/kernel/sched/debug.c @@ -321,6 +321,7 @@ do { \ P(sched_goidle); #ifdef CONFIG_SMP P64(avg_idle); + P64(max_idle_balance_cost); #endif P(ttwu_count); -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
