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NAME

     sched_ule - ULE scheduler

SYNOPSIS

     options SCHED_ULE

DESCRIPTION

     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:

           ·   Thread CPU affinity.
           ·   CPU topology awareness, including for hyper-threading.
           ·   Per-CPU run queues.
           ·   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.

     The sched_ule scheduler is disabled by default as it is experimental.
     See the BUGS section for more information.

SEE ALSO

     sched_4bsd(4), sysctl(8)

HISTORY

     The sched_ule scheduler first appeared in FreeBSD 5.1.

AUTHORS

     Jeff Roberson 〈jeff@FreeBSD.org