| Message ID | 1401431772-14320-12-git-send-email-yuyang.du@intel.com (mailing list archive) |
|---|---|
| State | RFC, archived |
| Headers | show |
On Fri, May 30, 2014 at 02:36:07PM +0800, Yuyang Du wrote: > 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 This must strive for the most useless changelog ever..
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 { } };
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.du@intel.com> --- include/linux/sched/sysctl.h | 1 + kernel/sysctl.c | 7 +++++++ 2 files changed, 8 insertions(+)