Struct ErrorBudget 

pub struct ErrorBudget { /* private fields */ }

Error budget, based on the SLO target and a sliding time window.

Core model: each error consumes (1 - slo_target) units of budget, and the budget capacity is 1.0. Therefore the number of errors required to exhaust the budget is 1 / (1 - slo_target) (e.g., 1000 errors when SLO=0.999). This model assumes the baseline traffic within the window is 1/(1-SLO) requests; it is a simplified model commonly used in financial-grade SLA monitoring, suitable for error budget tracking independent of traffic statistics.

consume calls outside the window are evicted on the next record.

Implementations

impl ErrorBudget

pub fn new(slo_target: f64, window: Duration) -> ErrorBudget

pub fn consume(&mut self, error_count: usize)

pub fn remaining(&self) -> f64

pub fn is_exhausted(&self) -> bool

Trait Implementations

impl Debug for ErrorBudget

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

Formats the value using the given formatter.