Struct b2histogram::Base2Histogram

pub struct Base2Histogram { /* fields omitted */ }

A compact and efficient integer histogram with fixed memory footprint, constant runtime performance, and very compact binary serialization.

Methods

impl Base2Histogram

pub fn new() -> Self

Create a new Base2Histogram instance

pub fn record(&mut self, value: u64)

Record a single observation of value

pub fn record_n(&mut self, value: u64, count: u64)

Record count observations of value

pub fn observations(&self, value: u64) -> u64

Returns the number of observations recorded by the bucket containing value

To retrieve the number of observations along with its bucket bounds, see bucket_for().

pub fn bucket_for(&self, value: u64) -> Bucket

Return the Bucket to which value belongs.

To retrieve only the number of observations see observations().

pub fn nonzero_buckets(&self) -> u32

Returns the number of buckets with one or more observations

pub fn has_counts(&self, value: u64) -> bool

Returns true if the bucket count corresponding to value is non-zero

pub fn iter(&self) -> impl Iterator<Item = Bucket> + '_

Iterate through all 64 buckets of the histogram in order (0..63)