metrics-0.4.1.1: High-performance application metric tracking

Safe Haskell	None
Language	Haskell2010

Data.Metrics.Timer.Internal

Description

A timer is essentially just a data type that combines a Meter and a Histogram to track both the rate at which events are triggered as well as timing statistics about the calls.

This module exports the pure internals, relying on the stateful version to supply the pure timer with measurements.

Documentation

data Timer #

Constructors

Timer
Fields timerMeter :: !Meter timerHistogram :: !Histogram

Instances

HasMeter Timer Meter #
Instance details Defined in Data.Metrics.Timer.Internal Methods meter :: Lens' Timer Meter #
HasHistogram Timer Histogram #
Instance details Defined in Data.Metrics.Timer.Internal Methods histogram :: Lens' Timer Histogram #

class HasHistogram s a | s -> a where #

Minimal complete definition

Methods

histogram :: Lens' s a #

Instances

HasHistogram Timer Histogram #
Instance details Defined in Data.Metrics.Timer.Internal Methods histogram :: Lens' Timer Histogram #

class HasMeter s a | s -> a where #

Minimal complete definition

Methods

meter :: Lens' s a #

Instances

HasMeter Timer Meter #
Instance details Defined in Data.Metrics.Timer.Internal Methods meter :: Lens' Timer Meter #

tickIfNecessary :: NominalDiffTime -> Timer -> Timer #

snapshot :: Timer -> Snapshot #

oneMinuteRate :: Timer -> Double #

fiveMinuteRate :: Timer -> Double #

fifteenMinuteRate :: Timer -> Double #

meanRate :: NominalDiffTime -> Timer -> Double #

count :: Timer -> Int #

clear :: NominalDiffTime -> Timer -> Timer #

update :: NominalDiffTime -> Double -> Timer -> Timer #

mean :: Timer -> Double #

stddev :: Timer -> Double #

variance :: Timer -> Double #

maxVal :: Timer -> Double #

minVal :: Timer -> Double #