Struct BudgetTelemetry 

pub struct BudgetTelemetry {

    pub schema_version: u16,
    pub level: DegradationLevel,
    pub pid_output: f64,
    pub pid_p: f64,
    pub pid_i: f64,
    pub pid_d: f64,
    pub e_value: f64,
    pub frames_observed: u32,
    pub frames_since_change: u32,
    pub last_decision: BudgetDecision,
    pub decision_reason: BudgetDecisionReason,
    pub transition_seq: u64,
    pub transition_correlation_id: u64,
    pub frame_time_ms: f64,
    pub target_ms: f64,
    pub pid_gate_threshold: f64,
    pub pid_gate_margin: f64,
    pub evidence_threshold: f64,
    pub evidence_margin: f64,
    pub in_warmup: bool,
}

Snapshot of budget controller telemetry for diagnostics and debug overlay.

All fields are Copy — no allocations. Intended to be cheaply captured once per frame and forwarded to a tracing subscriber or debug overlay widget.

Fields

schema_version: u16

Telemetry schema version for CI/E2E consumers.

level: DegradationLevel

Current degradation level.

pid_output: f64

Last PID control signal (positive = over budget).

pid_p: f64

Last PID proportional term.

pid_i: f64

Last PID integral term.

pid_d: f64

Last PID derivative term.

e_value: f64

Current e-process value E_t.

frames_observed: u32

Frames observed by the e-process.

frames_since_change: u32

Frames since last level change.

last_decision: BudgetDecision

Last decision made by the controller.

decision_reason: BudgetDecisionReason

Rationale code describing why the last decision was taken.

transition_seq: u64

Monotonic transition sequence number (increments on degrade/upgrade).

transition_correlation_id: u64

Correlation ID for the most recent transition event (0 if none yet).

frame_time_ms: f64

Last observed frame time in milliseconds.

target_ms: f64

Current target frame budget in milliseconds.

pid_gate_threshold: f64

PID gate threshold used for the last decision path.

pid_gate_margin: f64

PID gate margin (positive values indicate stronger gate pass).

evidence_threshold: f64

Evidence (e-process) threshold used for the last decision path.

evidence_margin: f64

Evidence gate margin (positive values indicate stronger gate pass).

in_warmup: bool

Whether the controller is in warmup (e-process not yet active).

Trait Implementations

impl Clone for BudgetTelemetry

fn clone(&self) -> BudgetTelemetry

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for BudgetTelemetry

impl Debug for BudgetTelemetry

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

Formats the value using the given formatter.

impl PartialEq for BudgetTelemetry

fn eq(&self, other: &BudgetTelemetry) -> 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 BudgetTelemetry