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Diffstat (limited to 'init/Kconfig')
| -rw-r--r-- | init/Kconfig | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/init/Kconfig b/init/Kconfig index 235c7a2c0d20..5d9097e2b805 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -999,6 +999,23 @@ config CGROUP_CPUACCT Provides a simple Resource Controller for monitoring the total CPU consumed by the tasks in a cgroup. +config CGROUP_SCHEDTUNE + bool "CFS tasks boosting cgroup subsystem (EXPERIMENTAL)" + depends on SCHED_TUNE + help + This option provides the "schedtune" controller which improves the + flexibility of the task boosting mechanism by introducing the support + to define "per task" boost values. + + This new controller: + 1. allows only a two layers hierarchy, where the root defines the + system-wide boost value and its direct childrens define each one a + different "class of tasks" to be boosted with a different value + 2. supports up to 16 different task classes, each one which could be + configured with a different boost value + + Say N if unsure. + config PAGE_COUNTER bool @@ -1237,6 +1254,32 @@ config SCHED_AUTOGROUP desktop applications. Task group autogeneration is currently based upon task session. +config SCHED_TUNE + bool "Boosting for CFS tasks (EXPERIMENTAL)" + help + This option enables the system-wide support for task boosting. + When this support is enabled a new sysctl interface is exposed to + userspace via: + /proc/sys/kernel/sched_cfs_boost + which allows to set a system-wide boost value in range [0..100]. + + The currently boosting strategy is implemented in such a way that: + - a 0% boost value requires to operate in "standard" mode by + scheduling all tasks at the minimum capacities required by their + workload demand + - a 100% boost value requires to push at maximum the task + performances, "regardless" of the incurred energy consumption + + A boost value in between these two boundaries is used to bias the + power/performance trade-off, the higher the boost value the more the + scheduler is biased toward performance boosting instead of energy + efficiency. + + Since this support exposes a single system-wide knob, the specified + boost value is applied to all (CFS) tasks in the system. + + If unsure, say N. + config SYSFS_DEPRECATED bool "Enable deprecated sysfs features to support old userspace tools" depends on SYSFS |