Struct ArrivalForecast 

pub struct ArrivalForecast { /* private fields */ }

Receiver-side Sprout-style rate forecaster.

Implementations

impl ArrivalForecast

pub fn new() -> Self

pub fn observe(&mut self, bytes: u64, interval_s: f64)

Feed one measurement: bytes delivered over interval_s seconds. The first observation seeds the filter; later ones run the Kalman predict / update with rate-scaled process and measurement noise.

pub fn mean_bps(&self) -> f64

The smoothed mean rate estimate (bytes/s).

pub fn forecast_bps(&self) -> f64

The forecast: the 5th-percentile deliverable rate over the next tick (bytes/s), mean - 1.645 * sqrt(var + process noise), floored at zero. A conservative lower bound the sender can size to without overshooting.

Trait Implementations

impl Clone for ArrivalForecast

fn clone(&self) -> ArrivalForecast

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ArrivalForecast

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

Formats the value using the given formatter.

impl Default for ArrivalForecast

fn default() -> Self

Returns the “default value” for a type.