Struct LatencyHistogram 

pub struct LatencyHistogram { /* private fields */ }

A simple fixed-bucket latency histogram.

Bucket upper bounds are inclusive (i.e., a sample of exactly 1 ms falls into bucket 0). Bucket index mapping:

• 0: ≤ 1 ms
• 1: 2 – 5 ms
• 2: 6 – 10 ms
• 3: 11 – 50 ms
• 4: 51 – 100 ms
• 5: 101 – 500 ms
• 6: > 500 ms

Implementations

impl LatencyHistogram

pub fn record(&self, ms: u64)

Record a latency sample in milliseconds.

pub fn mean_ms(&self) -> f64

Return the mean latency in ms, or 0.0 if no samples.

pub fn count(&self) -> u64

Return the total sample count.

pub fn buckets(&self) -> Vec<(u64, u64)>

Return bucket counts as (upper_bound_ms, count) pairs.

Trait Implementations

impl Debug for LatencyHistogram

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

Formats the value using the given formatter.

impl Default for LatencyHistogram

fn default() -> Self

Returns the “default value” for a type.