latency

package

v0.0.0-...-6d46272 Latest Latest Go to latest Published: Aug 30, 2023 License: Apache-2.0 Imports: 11 Imported by: 4

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Repository

github.com/aws/aws-k8s-tester

Documentation ¶

Overview ¶

Package latency defines latency utilities.

Index ¶

type DurationWithLabel
type DurationWithLabels
- func LabelDurations(ds1 Durations, label string) (ds2 DurationWithLabels)
type Durations
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)
type Summary
- func (rs Summary) JSON() string
- func (rs Summary) Table() string
type SummaryCompare
- func CompareSummary(a Summary, b Summary) (c SummaryCompare, err error)
- func (c SummaryCompare) JSON() string
- func (c SummaryCompare) Table() string

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

This section is empty.

Types ¶

type DurationWithLabel ¶

type DurationWithLabel struct {
	time.Duration
	Label string
}

DurationWithLabel is the duration with label. ref. https://en.wikipedia.org/wiki/Kolmogorov%E2%80%93Smirnov_test

type DurationWithLabels ¶

type DurationWithLabels []DurationWithLabel

func LabelDurations ¶

func LabelDurations(ds1 Durations, label string) (ds2 DurationWithLabels)

LabelDurations labels durations.

func (DurationWithLabels) CSV ¶

func (ds DurationWithLabels) CSV(path string) error

func (DurationWithLabels) Len ¶

func (ds DurationWithLabels) Len() int

func (DurationWithLabels) Less ¶

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

func (DurationWithLabels) PickP50 ¶

func (ds DurationWithLabels) PickP50() DurationWithLabel

PickP50 returns the latency assuming durations are already sorted.

func (DurationWithLabels) PickP90 ¶

func (ds DurationWithLabels) PickP90() DurationWithLabel

PickP90 returns the latency assuming durations are already sorted.

func (DurationWithLabels) PickP99 ¶

func (ds DurationWithLabels) PickP99() DurationWithLabel

PickP99 returns the latency assuming durations are already sorted.

func (DurationWithLabels) PickP999 ¶

func (ds DurationWithLabels) PickP999() DurationWithLabel

PickP999 returns the latency assuming durations are already sorted.

func (DurationWithLabels) PickP9999 ¶

func (ds DurationWithLabels) PickP9999() DurationWithLabel

PickP9999 returns the latency assuming durations are already sorted.

func (DurationWithLabels) Swap ¶

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

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) PickP50 ¶

func (ds Durations) PickP50() time.Duration

PickP50 returns the latency assuming durations are already sorted.

func (Durations) PickP90 ¶

func (ds Durations) PickP90() time.Duration

PickP90 returns the latency assuming durations are already sorted.

func (Durations) PickP99 ¶

func (ds Durations) PickP99() time.Duration

PickP99 returns the latency assuming durations are already sorted.

func (Durations) PickP999 ¶

func (ds Durations) PickP999() time.Duration

PickP999 returns the latency assuming durations are already sorted.

func (Durations) PickP9999 ¶

func (ds Durations) PickP9999() time.Duration

PickP9999 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 Summary ¶

type Summary struct {
	// TestID is the test ID.
	TestID string `json:"test_id" read-only:"true"`

	// 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"`
	// Histogram is the client requests latency histogram.
	Histogram HistogramBuckets `json:"histogram" read-only:"true"`

	// P50 is the 50-percentile latency.
	P50 time.Duration `json:"p50" read-only:"true"`
	// P90 is the 90-percentile latency.
	P90 time.Duration `json:"p90" read-only:"true"`
	// P99 is the 99-percentile latency.
	P99 time.Duration `json:"p99" read-only:"true"`
	// P999 is the 99.9-percentile latency.
	P999 time.Duration `json:"p99.9" read-only:"true"`
	// P9999 is the 99.99-percentile latency.
	P9999 time.Duration `json:"p99.99" read-only:"true"`
}

Summary represents request results.

func (Summary) JSON ¶

func (rs Summary) JSON() string

func (Summary) Table ¶

func (rs Summary) Table() string

type SummaryCompare ¶

type SummaryCompare struct {
	A Summary `json:"a" read-only:"true"`
	B Summary `json:"b" read-only:"true"`

	P50DeltaPercent   float64 `json:"latency-p50-delta-percent" read-only:"true"`
	P90DeltaPercent   float64 `json:"latency-p90-delta-percent" read-only:"true"`
	P99DeltaPercent   float64 `json:"latency-p99-delta-percent" read-only:"true"`
	P999DeltaPercent  float64 `json:"latency-p99.9-delta-percent" read-only:"true"`
	P9999DeltaPercent float64 `json:"latency-p99.99-delta-percent" read-only:"true"`
}

SummaryCompare compares two "Summary". Delta is computed with "A" as "before" and with "B" as "after".

func CompareSummary ¶

func CompareSummary(a Summary, b Summary) (c SummaryCompare, err error)

CompareSummary compares two "Summary".

func (SummaryCompare) JSON ¶

func (c SummaryCompare) JSON() string

func (SummaryCompare) Table ¶

func (c SummaryCompare) Table() string

Source Files ¶

View all Source files

latency.go

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