sched_ule — ULE scheduler

       Jeff Roberson <jeff@FreeBSD.org>

Debian                                           August 10, 2012                                    SCHED_ULE(4)

       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:

             •   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.

       kern.sched.quantum
               This read-write sysctl reports or sets the length of the quantum (in micro-seconds) granted to  a
               thread.

       The sched_ule scheduler first appeared in FreeBSD 5.1.

       sched_ule — ULE scheduler

sched_4bsd(4), sysctl(8)

optionsSCHED_ULE