In wakeup balance, we bias wakee and waker (in this order) if it is capable
of handling the wakee task.
sysctl_sched_cc_wakeup_threshold is the threshold to see whether the CPU
is capable, and can be changed by sysctl tool
Signed-off-by: Yuyang Du <yuyang...@intel.com>
---
include/linux/sched/sysctl.h | 1 +
kernel/sysctl.c | 7 +++++++
2 files changed, 8 insertions(+)
diff --git a/include/linux/sched/sysctl.h b/include/linux/sched/sysctl.h
index f8a3e0a..f1e90c7 100644
--- a/include/linux/sched/sysctl.h
+++ b/include/linux/sched/sysctl.h
@@ -38,6 +38,7 @@ extern unsigned int sysctl_sched_child_runs_first;
#ifdef CONFIG_SMP
extern unsigned int sysctl_sched_cc_sum_period;
+extern unsigned int sysctl_sched_cc_wakeup_threshold;
#endif
enum sched_tunable_scaling {
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 13aea95..77a5aa5 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -1098,6 +1098,13 @@ static struct ctl_table kern_table[] = {
.mode = 0644,
.proc_handler = proc_dointvec,
},
+ {
+ .procname = "sched_cc_wakeup_threshold",
+ .data = &sysctl_sched_cc_wakeup_threshold,
+ .maxlen = sizeof(sysctl_sched_cc_wakeup_threshold),
+ .mode = 0644,
+ .proc_handler = proc_dointvec,
+ },
#endif
{ }
};
--
1.7.9.5
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