diff options
Diffstat (limited to 'kernel/sched_fair.c')
| -rw-r--r-- | kernel/sched_fair.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c index 71b3458245e5..455106d318a8 100644 --- a/kernel/sched_fair.c +++ b/kernel/sched_fair.c @@ -21,6 +21,7 @@ */ #include <linux/latencytop.h> +#include <linux/sched.h> /* * Targeted preemption latency for CPU-bound tasks: @@ -38,6 +39,18 @@ unsigned int sysctl_sched_latency = 5000000ULL; unsigned int normalized_sysctl_sched_latency = 5000000ULL; /* + * The initial- and re-scaling of tunables is configurable + * (default SCHED_TUNABLESCALING_LOG = *(1+ilog(ncpus)) + * + * Options are: + * SCHED_TUNABLESCALING_NONE - unscaled, always *1 + * SCHED_TUNABLESCALING_LOG - scaled logarithmical, *1+ilog(ncpus) + * SCHED_TUNABLESCALING_LINEAR - scaled linear, *ncpus + */ +enum sched_tunable_scaling sysctl_sched_tunable_scaling + = SCHED_TUNABLESCALING_LOG; + +/* * Minimal preemption granularity for CPU-bound tasks: * (default: 1 msec * (1 + ilog(ncpus)), units: nanoseconds) */ |