metrics

Documentation

Overview

Package metrics defines metrics utilities.

Index

• type Durations
  • func (ds Durations) Len() int
  • func (ds Durations) Less(i, j int) bool
  • func (ds Durations) PickLantencyP50() time.Duration
  • func (ds Durations) PickLantencyP90() time.Duration
  • func (ds Durations) PickLantencyP99() time.Duration
  • func (ds Durations) PickLantencyP999() time.Duration
  • func (ds Durations) PickLantencyP9999() time.Duration
  • func (ds Durations) Swap(i, j int)
• type HistogramBucket
  • func (bucket HistogramBucket) String() string
• type HistogramBuckets
  • func MergeHistograms(a HistogramBuckets, b HistogramBuckets) (HistogramBuckets, error)
  • func ParseHistogram(scale string, histo *dto.Histogram) (buckets HistogramBuckets, err error)
  • func (buckets HistogramBuckets) Len() int
  • func (buckets HistogramBuckets) Less(i, j int) bool
  • func (buckets HistogramBuckets) Swap(i, j int)
  • func (buckets HistogramBuckets) Table() string
• type RequestsSummary
  • func (rs RequestsSummary) JSON() string
  • func (rs RequestsSummary) Table() string

Types

type Durations

type Durations []time.Duration

func (Durations) Len

func (ds Durations) Len() int

func (Durations) Less

func (ds Durations) Less(i, j int) bool

func (Durations) PickLantencyP50

func (ds Durations) PickLantencyP50() time.Duration

PickLantencyP50 returns the latency assuming durations are already sorted.

func (Durations) PickLantencyP90

func (ds Durations) PickLantencyP90() time.Duration

PickLantencyP90 returns the latency assuming durations are already sorted.

func (Durations) PickLantencyP99

func (ds Durations) PickLantencyP99() time.Duration

PickLantencyP99 returns the latency assuming durations are already sorted.

func (Durations) PickLantencyP999

func (ds Durations) PickLantencyP999() time.Duration

PickLantencyP999 returns the latency assuming durations are already sorted.

func (Durations) PickLantencyP9999

func (ds Durations) PickLantencyP9999() time.Duration

PickLantencyP9999 returns the latency assuming durations are already sorted.

func (Durations) Swap

func (ds Durations) Swap(i, j int)

type HistogramBucket

type HistogramBucket struct {
	Scale      string  `json:"scale"`
	LowerBound float64 `json:"lower-bound"`
	UpperBound float64 `json:"upper-bound"`
	Count      uint64  `json:"count"`
}

HistogramBucket represents metrics latency bucket.

func (HistogramBucket) String

func (bucket HistogramBucket) String() string

type HistogramBuckets

type HistogramBuckets []HistogramBucket

func MergeHistograms

func MergeHistograms(a HistogramBuckets, b HistogramBuckets) (HistogramBuckets, error)

MergeHistograms merges two histograms.

func ParseHistogram

func ParseHistogram(scale string, histo *dto.Histogram) (buckets HistogramBuckets, err error)

ParseHistogram parses Prometheus histogram.

func (HistogramBuckets) Len

func (buckets HistogramBuckets) Len() int

func (HistogramBuckets) Less

func (buckets HistogramBuckets) Less(i, j int) bool

func (HistogramBuckets) Swap

func (buckets HistogramBuckets) Swap(i, j int)

func (HistogramBuckets) Table

func (buckets HistogramBuckets) Table() string

Table converts "HistogramBuckets" to table.

type RequestsSummary

type RequestsSummary struct {
	// SuccessTotal is the number of successful client requests.
	SuccessTotal float64 `json:"success-total" read-only:"true"`
	// FailureTotal is the number of failed client requests.
	FailureTotal float64 `json:"failure-total" read-only:"true"`
	// LatencyHistogram is the client requests latency histogram.
	LatencyHistogram HistogramBuckets `json:"latency-histogram" read-only:"true"`

	// LantencyP50 is the 50-percentile latency.
	LantencyP50 time.Duration `json:"latency-p50" read-only:"true"`
	// LantencyP90 is the 90-percentile latency.
	LantencyP90 time.Duration `json:"latency-p90" read-only:"true"`
	// LantencyP99 is the 99-percentile latency.
	LantencyP99 time.Duration `json:"latency-p99" read-only:"true"`
	// LantencyP999 is the 99.9-percentile latency.
	LantencyP999 time.Duration `json:"latency-p99.9" read-only:"true"`
	// LantencyP9999 is the 99.99-percentile latency.
	LantencyP9999 time.Duration `json:"latency-p99.99" read-only:"true"`
}

RequestsSummary represents request results.

func (RequestsSummary) JSON

func (rs RequestsSummary) JSON() string

func (RequestsSummary) Table

func (rs RequestsSummary) Table() string