Struct DeltaEstimator 

pub struct DeltaEstimator { /* private fields */ }

Online estimate of the per-request setup cost delta.

A configured constant is not good enough: the same code saw delta = 5 ms against a loopback-equivalent origin and 420 ms against a real proxied origin, and delta sets the repair deadband theta. Underestimating it by 2.8x caused measurable over-repair — each unnecessary repair costs a full delta, so the error compounds.

Implementations

impl DeltaEstimator

pub fn new(prior_s: f64) -> Self

pub fn observe(&mut self, ttfb_s: f64)

Record an observed request-to-first-byte latency.

pub fn get(&self) -> f64

pub fn samples(&self) -> u32

Trait Implementations

impl Clone for DeltaEstimator

fn clone(&self) -> DeltaEstimator

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for DeltaEstimator

impl Debug for DeltaEstimator

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

Formats the value using the given formatter.