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34 .Cd "options SCHED_ULE"
39 provides a number of advanced scheduler
40 features not present in
42 the traditional system scheduler.
43 These features address SMP and interactivity and include:
45 .Bl -bullet -compact -offset indent
49 CPU topology awareness, including for hyper-threading.
53 Interactivity heuristics that detect interactive applications and schedules
54 them preferentially under high load.
57 The following sysctls are relevant to the operation of
59 .Bl -tag -width indent
60 .It Va kern.sched.name
61 This read-only sysctl reports the name of the active scheduler.
62 .It Va kern.sched.quantum
63 This read-write sysctl reports or sets the length of the quantum (in
64 micro-seconds) granted to a thread.
72 scheduler first appeared in