diff options
| author | Joonwoo Park <joonwoop@codeaurora.org> | 2015-03-02 11:25:17 -0800 |
|---|---|---|
| committer | David Keitel <dkeitel@codeaurora.org> | 2016-03-23 20:01:50 -0700 |
| commit | b40bf941f61756bcca03a818b4c8fa857612f8cd (patch) | |
| tree | 27f8532b5cebdc76f82afe08ecc60441ff751319 /include/linux | |
| parent | 8f90803a45d3aa349a4d0f1051b194767ece5e26 (diff) | |
sched: add scheduling latency tracking procfs node
Add a new procfs node /proc/sys/kernel/sched_max_latency_us to track the
worst scheduling latency. It provides easier way to identify maximum
scheduling latency seen across the CPUs.
Change-Id: I6e435bbf825c0a4dff2eded4a1256fb93f108d0e
[joonwoop@codeaurora.org: fixed conflict in update_stats_wait_end().]
Signed-off-by: Joonwoo Park <joonwoop@codeaurora.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/sched/sysctl.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/sched/sysctl.h b/include/linux/sched/sysctl.h index fdb75cab5243..c614b17c6069 100644 --- a/include/linux/sched/sysctl.h +++ b/include/linux/sched/sysctl.h @@ -132,6 +132,10 @@ extern unsigned int sysctl_sched_autogroup_enabled; #ifdef CONFIG_SCHEDSTATS extern unsigned int sysctl_sched_latency_panic_threshold; extern unsigned int sysctl_sched_latency_warn_threshold; + +extern int sched_max_latency_sysctl(struct ctl_table *table, int write, + void __user *buffer, size_t *lenp, + loff_t *ppos); #endif extern int sched_rr_timeslice; |