Package l2met provides a basic log-based metrics provider for cases where a real provider is not available.

Package multiprovider allows multiple metrics.Providers to be composed together to report metrics to multiple places.

Package testmetrics is for testing provider metrics with a test Provider that adheres to the Provider interface.

MeasureSince takes a Histogram and initial time and generates an observation for the total duration of the operation.

NewDurationTimer wraps the given histogram and records the current time.

NewHLLCounter creates a new HyperLogLog based counter.

NewMonotonicTimer takes a histogram and units like Duration Timer, as well as a frequency to report statistics on.

WithPercentileDistribution will generate boundaries by scaling the values between the min and the max according to supplied percentile distribution pattern.

WithStandardPercentiles returns a bulls horn shaped distribution where the lower and upper boundaries are captured using more precision than the middle.

FiveSecondDistribution is a percentile distribution between 0 and 5000 milliseconds.

TenSecondDistribution is a percentile distribution between 0 and 10,000 milliseconds.

ThirtySecondDistribution is a percentile distribution between 0 and 30,000 milliseconds.

DurationTimer acts as a stopwatch, sending observations to a wrapped histogram.

HLLCounter provides a wrapper around a HyperLogLog probabalistic counter, capable of being reported to Librato.

MonotonicTimer emits metrics periodically until it is stopped.

CardinalityCounter describes a metric that reports a count of the number of unique values inserted.

Provider represents the different types of metrics that a provider can expose.