Struct LabeledSampledTimer 

pub struct LabeledSampledTimer<L: LabelEnum> { /* private fields */ }

Label-indexed sampled timer with O(1) lookup.

Implementations

impl<L: LabelEnum> LabeledSampledTimer<L>

pub fn new(bounds_nanos: &[u64], shard_count: usize, sample_stride: u64) -> Self

Create a labeled sampled timer with custom histogram bounds in nanoseconds.

pub fn with_latency_buckets(shard_count: usize, sample_stride: u64) -> Self

Create a labeled sampled timer with default latency buckets in nanoseconds.

pub fn start(&self, label: L) -> SampledTimerGuard<'_>

Start timing one labeled operation.

pub fn record_elapsed(&self, label: L, elapsed: Duration)

Record an already-measured duration for the given label if it should be sampled.

pub fn calls(&self, label: L) -> u64

Total calls for a label, sampled or not.

pub fn sample_count(&self, label: L) -> u64

Number of latency samples recorded for a label.

pub fn sample_sum_nanos(&self, label: L) -> u64

Sum of sampled latency values in nanoseconds for a label.

pub fn avg_sample_nanos(&self, label: L) -> Option<f64>

Average sampled latency in nanoseconds for a label.

pub fn calls_metric(&self, label: L) -> &Counter

Access the underlying call counter for a label.

pub fn histogram(&self, label: L) -> &Histogram

Access the underlying sampled histogram for a label.

pub fn iter(&self) -> impl Iterator<Item = (L, &Counter, &Histogram)> + '_

Iterate over all label/timer pairs for export.

Trait Implementations

impl<L: LabelEnum> DogStatsDExport for LabeledSampledTimer<L>

fn export_dogstatsd( &self, output: &mut String, name: &str, tags: &[(&str, &str)], )

Export this metric to the output string in DogStatsD format.

impl<L: LabelEnum> OtlpExport for LabeledSampledTimer<L>

fn export_otlp( &self, metrics: &mut Vec<Metric>, name: &str, description: &str, time_unix_nano: u64, )

impl<L: LabelEnum> PrometheusExport for LabeledSampledTimer<L>

fn export_prometheus(&self, output: &mut String, name: &str, help: &str)

Export this metric to the output string.