Struct HistogramSummary 

pub struct HistogramSummary {
    pub max: u64,
    pub p999: u64,
    pub p99: u64,
    pub p95: u64,
    pub mean: u64,
}

Pre-computed quantile summary derived from a Histogram.

Examples

use dynomite::stats::HistogramSummary;
let s = HistogramSummary::default();
assert_eq!(s.max, 0);

Fields

max: u64

Maximum observation in the window.

p999: u64

99.9th percentile.

p99: u64

99th percentile.

p95: u64

95th percentile.

mean: u64

Arithmetic mean of all observations.

Implementations

impl HistogramSummary

pub fn from_histogram(h: &Histogram) -> Self

Compute the standard quantile summary from a histogram.

When the histogram is in overflow (a value larger than the largest bucket offset has been recorded), the summary is zeroed: the reference implementation refuses to publish percentiles in that state.

Examples

use dynomite::stats::{Histogram, HistogramSummary};
let mut h = Histogram::new();
for v in 0..100 { h.record(v); }
let s = HistogramSummary::from_histogram(&h);
assert!(s.p99 >= s.p95);

Trait Implementations

impl Clone for HistogramSummary

fn clone(&self) -> HistogramSummary

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for HistogramSummary

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

Formats the value using the given formatter.

impl Default for HistogramSummary

fn default() -> HistogramSummary

Returns the “default value” for a type.

impl Copy for HistogramSummary