Struct ValidatorStats 

pub struct ValidatorStats {
    pub id: usize,
    pub name: String,
    pub alpha: f64,
    pub beta: f64,
    pub cost_ema: Duration,
    pub observations: u64,
    pub failures: u64,
}

Per-validator statistics tracked by the pipeline.

Fields

id: usize

Unique identifier for this validator.

name: String

Human-readable name (for logging/ledger).

alpha: f64

Beta posterior α (pseudo-count of failures + prior).

beta: f64

Beta posterior β (pseudo-count of successes + prior).

cost_ema: Duration

EMA of observed cost.

observations: u64

Total number of observations.

failures: u64

Total failures observed.

Implementations

impl ValidatorStats

pub fn failure_prob(&self) -> f64

Posterior mean failure probability: α / (α + β).

pub fn score(&self, c_min: Duration) -> f64

Score used for ordering: p / c (higher = should run earlier).

pub fn variance(&self) -> f64

Posterior variance: αβ / ((α+β)²(α+β+1)).

pub fn confidence_width(&self) -> f64

95% credible interval width (normal approximation for large α+β).

Trait Implementations

impl Clone for ValidatorStats

fn clone(&self) -> ValidatorStats

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ValidatorStats

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

Formats the value using the given formatter.