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SCHED_ULE(4) FreeBSD Kernel Interfaces Manual SCHED_ULE(4)
NAME
sched_ule - ULE scheduler
SYNOPSIS
options SCHED_ULE
DESCRIPTION
The sched_ule scheduler provides a number of advanced scheduler features
not present in sched_4bsd(4), the traditional system scheduler. These
features address SMP and interactivity and include:
o Thread CPU affinity.
o CPU topology awareness, including for hyper-threading.
o Per-CPU run queues.
o 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
This read-only sysctl reports the name of the active scheduler.
kern.sched.quantum
This read-write sysctl reports or sets the length of the quantum
(in micro-seconds) granted to a thread.
SEE ALSO
sched_4bsd(4), sysctl(8)
HISTORY
The sched_ule scheduler first appeared in FreeBSD 5.1.
AUTHORS
Jeff Roberson <jeff@FreeBSD.org>
FreeBSD 14.0-RELEASE-p6 August 10, 2012 FreeBSD 14.0-RELEASE-p6