sched/debug: Make schedstats a runtime tunable that is disabled by default

[mirror_ubuntu-zesty-kernel.git] / Documentation / kernel-parameters.txt

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 551ecf09c8dd820be865ebbbc22fa6b5f608dd98..ed47b609530b8578d081d0785216d73a8fc579ca 100644 (file)
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -3528,6 +3528,11 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
 
        sched_debug     [KNL] Enables verbose scheduler debug messages.
 
+       schedstats=     [KNL,X86] Enable or disable scheduled statistics.
+                       Allowed values are enable and disable. This feature
+                       incurs a small amount of overhead in the scheduler
+                       but is useful for debugging and performance tuning.
+
        skew_tick=      [KNL] Offset the periodic timer tick per cpu to mitigate
                        xtime_lock contention on larger systems, and/or RCU lock
                        contention on all systems with CONFIG_MAXSMP set.