lisa.wlgen.rta.PolicyProperty#

class lisa.wlgen.rta.PolicyProperty(policy)[source]#

Bases: SimpleConcreteProperty

Scheduler policy property.

Parameters:: policy (str) – Scheduling policy: * SCHED_OTHER for CFS task * SCHED_FIFO for FIFO realtime task * SCHED_RR for round-robin realtime task * SCHED_DEADLINE for deadline task * SCHED_BATCH for batch task * SCHED_IDLE for idle task

Classes

__class__ ^inherited

Metaclass for properties.

Attributes

`DEFAULT_JSON`	JSON value to use as a default.
`JSON_KEY`	Name of the JSON key the property will set.
`KEY`	Subclasses can override this attribute so that `PropertyBase.from_key()` knows that it can call their `_from_key()` method for that key.
`OPTIMIZE_JSON_KEYS`	Configuration driving the JSON optimization, as a `dict(str, set(str))`.
`FILTER_NONE` ^inherited	If `True`, no JSON content will be generated when the property value is `None`.
`REQUIRED_KCONFIG_KEYS` ^inherited	List of KCONFIG keys that need to be =Y on the target kernel for this property to be usable.

Properties

`json_key` ^inherited	Name of the JSON key that will be set.
`key` ^inherited	Key of the instance.
`logger` ^inherited	Convenience short-hand for `self.get_logger()`.
`val` ^inherited	Value “payload” of the property.

Methods

`HASH_COERCE()` ^inherited	Used to coerce the values of `self.__dict__` to hashable values.
`__and__()` ^inherited	Combine two instances of the same property together.
`check_kconfig()` ^inherited	Check whether `plat_info` contains the kernel KCONFIG keys contained in `REQUIRED_KCONFIG_KEYS`.
`find_cls()` ^inherited	Find which subclass can handle `key`.
`from_key()` ^inherited	Alternative constructor that is available with the same signature for all properties.
`get_logger()` ^inherited	Provides a `logging.Logger` named after `cls`.
`log_locals()` ^inherited	Debugging aid: log the local variables of the calling function.
`to_default_json()` ^inherited	Similar to `to_json()` but returns the default values for the keys set in `to_json()`.
`to_json()` ^inherited	Snippet of JSON content for that property as Python objects.

Classes#

PolicyProperty.__class__#: alias of PropertyMeta

Attributes#

PolicyProperty.DEFAULT_JSON = 'SCHED_OTHER'#

JSON value to use as a default.

If None, nothing will be output.

Note

If the default value is context-dependent, it should override to_default_json() instead.

PolicyProperty.JSON_KEY = 'policy'#: Name of the JSON key the property will set.

Note

If it needs to be dynamically chose, see json_key.

PolicyProperty.KEY = 'policy'#: Subclasses can override this attribute so that PropertyBase.from_key() knows that it can call their _from_key() method for that key.

Note

This class attribute will not be inherited automatically so that each class can be uniquely identified by its key. Subclass that do not override the value explicitly will get None.

PolicyProperty.OPTIMIZE_JSON_KEYS = {'policy': {}}#

Configuration driving the JSON optimization, as a dict(str, set(str)).

This is a dictionary mapping JSON key names to set of “barrier” JSON keys. When successive phases of a given task share the same value for the keys of that dictionary, they will be removed in the later phases since rt-app settings are persistent across phases. When any of the barrier key listed in the set has a change in its value, it will be considered as an optimization barrier and the value will be set again, even if it means repeating the same value as earlier.

PolicyProperty.FILTER_NONE = True#

Inherited attribute, see lisa.wlgen.rta.SimpleConcreteProperty.FILTER_NONE

If True, no JSON content will be generated when the property value is None.

PolicyProperty.REQUIRED_KCONFIG_KEYS = []#

Inherited attribute, see lisa.wlgen.rta.ConcretePropertyBase.REQUIRED_KCONFIG_KEYS

List of KCONFIG keys that need to be =Y on the target kernel for this property to be usable.