Struct EngineStats 

pub struct EngineStats {
    pub frontier_len: usize,
    pub bus_len: usize,
    pub pending_async: usize,
    pub slot_table_occupied: usize,
    pub ingress_depth: usize,
    pub outbound_queue_depth: usize,
    pub event_subscriptions: usize,
    pub registered_components: usize,
    pub graph_slots: usize,
}

Point-in-time hot-path counters for dashboards + saturation detection. Not synchronized against an in-flight poll cycle.

Fields

frontier_len: usize

(OpRef, ExecId) pairs on the frontier. Climbing → poll loop falling behind ingress.

bus_len: usize

Events queued on the typed bus awaiting routing.

pending_async: usize

Suspended async commands. Approaching NodeConfig.max_pending_async → cap pressure.

slot_table_occupied: usize

(NodeSiteId, ExecId) entries holding a value.

ingress_depth: usize

Approximate MPMC ingress depth.

outbound_queue_depth: usize

Envelopes queued for next outbound drain.

event_subscriptions: usize

Event kinds with at least one subscriber.

registered_components: usize

Number of registered components.

graph_slots: usize

Number of installed graphs.

Trait Implementations

impl Clone for EngineStats

fn clone(&self) -> EngineStats

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for EngineStats

impl Debug for EngineStats

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for EngineStats

fn default() -> EngineStats

Returns the “default value” for a type.

impl Eq for EngineStats

impl PartialEq for EngineStats

fn eq(&self, other: &EngineStats) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for EngineStats