Struct HistogramMetric

pub struct HistogramMetric {
    pub name: InternString,
    pub labels: Map<InternString, InternString>,
    pub sum: f64,
    pub count: f64,
    pub bucket: Vec<(f64, f64)>,
}

Fields

name: InternString

labels: Map<InternString, InternString>

sum: f64

count: f64

bucket: Vec<(f64, f64)>

Implementations

impl HistogramMetric

pub fn quantile(&self, q: f64) -> f64

Given a quantile (eg: p90 would be q=0.9), returns the approximate observed latency value that that percentage of samples would have recorded. The value is approximated through linear interpolation across the range found in the last matching bucket.

This logic is derived from the histogramQuantile function in prometheus https://github.com/prometheus/prometheus/blob/1435c8ae4aa1041592778018ba62fc3058a9ad3d/promql/quantile.go#L177

Trait Implementations

impl Debug for HistogramMetric

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

Formats the value using the given formatter.

impl PartialEq for HistogramMetric

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