zxfoundation.sched.policy Module Reference

Data Structures
struct	zxfoundation::sched::sched_admission_result
	Result returned by scheduler class admission. More...
struct	zxfoundation::sched::sched_mask
	Compact CPU or node mask used by scheduler admission. More...
struct	zxfoundation::sched::sched_policy
	Public scheduler policy contract for a DGP strand. More...

Enumerations
enum class	rt_mode : u8 { fifo = 0 , round_robin = 1 }
	Real-time queueing behavior requested by a strand policy.
enum class	sched_class_id : u8 { idle = 0 , fair = 1 , rt = 2 , deadline = 3 }
	Scheduler class identifier ordered by dispatch priority.
enum class	sched_substate : u8 { idle = 0 , runnable = 1 , running = 2 , blocked = 3 }
	Scheduler substate within the active lifecycle.
enum class	topology_evidence : u8 {   absent = 0 , loader = 1 , loader_stsi = 2 , kernel_stsi = 3 ,   verified = 4 , degraded = 5 }
	Quality of topology evidence used for placement decisions.

Variables
u8	_pad {0}
u8	_pad0 [6] {}
u8	_pad1 {0}
u64	admitted_period_ns {0}
	Period actually reserved by the scheduler.
u64	admitted_runtime_ns {0}
	Runtime actually reserved by the scheduler.
bool	allow_smt_sibling {true}
	True when SMT sibling placement is allowed.
sched_mask	allowed_cpus {}
	Admitted CPU mask; zero means scheduler default.
sched_mask	allowed_numa_nodes {}
	Admitted NUMA mask; zero means scheduler default.
u64	bits {0}
	Bit n authorizes CPU or NUMA node n.
sched_class_id	class_id {sched_class_id::fair}
	Class admitted by policy validation.
sched_class_id	class_id {sched_class_id::fair}
	Requested scheduler class.
u64	deadline_ns {0}
	Relative deadline for deadline-class work.
bool	isolation_sensitive {false}
	True when placement must fail closed without evidence.
u64	period_ns {0}
	Replenishment period for bandwidth admission.
u16	preferred_cpu {0}
	Preferred CPU selected by topology admission.
bool	remote_node_allowed {true}
	True when NUMA fallback remains permitted.
rt_mode	rt_behavior {rt_mode::fifo}
	RT mode when class_id is rt.
u8	rt_priority {0}
	Fixed RT priority, zero is invalid for user RT.
u64	runtime_ns {0}
	Runtime reservation for RT/deadline accounting.
bool	smt_sibling_allowed {true}
	True when SMT sibling placement remains permitted.
bool	user_visible {false}
	True when the request originated from a user domain.

Files
file	zxfoundation/sched/policy.cxxm