Lines Matching +full:implementation +full:- +full:defined

5 sched_ext is a scheduler class whose behavior can be defined by a set of BPF
6 programs - the BPF scheduler.
19   :kbd:`SysRq-S`.
24   `sched_ext_dump` tracepoint. The SysRq key sequence :kbd:`SysRq-D`
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54 in ``ops->flags``, all ``SCHED_NORMAL``, ``SCHED_BATCH``, ``SCHED_IDLE``, and
58 set in ``ops->flags``, only tasks with the ``SCHED_EXT`` policy are scheduled
62 Terminating the sched_ext scheduler program, triggering :kbd:`SysRq-S`, or
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68     # make -j16 -C tools/sched_ext
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127 .. code-block:: c
132      * idle core is found by the default ops.select_cpu() implementation,
136      * Note that this implementation has exactly the same behavior as the
137      * default ops.select_cpu implementation. The behavior of the scheduler
138      * would be exactly same if the implementation just didn't define the
161      * Note that this implementation has exactly the same behavior as the
162      * default ops.enqueue implementation, which just dispatches the task
164      * if the implementation just didn't define the simple_enqueue struct_ops
183             exit_type = ei->type;
196 ---------------
206 DSQ. A non-local DSQ is "consumed" to transfer a task to the consuming CPU's
215 ----------------
228    A side-effect of selecting a CPU is waking it up from idle. While a BPF
261      be used - ``SCX_DSQ_LOCAL``, ``SCX_DSQ_LOCAL_ON | cpu``,
268    * ``scx_bpf_consume()`` tranfers a task from the specified non-local DSQ
287 built-in DSQs are used, there is no need to implement ``ops.dispatch()`` as
293 ``SCX_DSQ_LOCAL`` and ``SCX_DSQ_GLOBAL`` do not support priority-queue
304 * ``kernel/sched/ext.c`` contains sched_ext core implementation and helpers.
313   * ``scx_qmap[.bpf].c``: A multi-level FIFO scheduler supporting five
320 guarantees. This includes the ops table callbacks and constants defined in
321 ``include/linux/sched/ext.h``, as well as the ``scx_bpf_`` kfuncs defined in