sched_ule4
Ule scheduler
Usage
options SCHED_ULE
Overview
The sched_ule scheduler is an experimental scheduler that provides a number of advanced scheduler features not present in sched_4bsd(4), the default system scheduler. These features address SMP and interactivity and include:
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Thread CPU affinity.
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CPU topology awareness, including for hyper-threading.
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Per-CPU run queues.
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Interactivity heuristics that detect interactive applications and schedules them preferentially under high load.
The following sysctls are relevant to the operation of sched_ule:
- kern.sched.name
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This read-only sysctl reports the name of the active scheduler.
The sched_ule scheduler is disabled by default as it is experimental. See the BUGS section for more information.