metrics

Documentation

Index

• type DurationHistogram
  • func NewDurationHistogram(steps, ends []time.Duration) (h DurationHistogram)
  • func (h *DurationHistogram) Push(d time.Duration)
  • func (h *DurationHistogram) String(width int) (s string, oorp float64)
• type DurationStats
  • func (s *DurationStats) IsZero() bool
  • func (s *DurationStats) Mean() time.Duration
  • func (s *DurationStats) Push(d time.Duration)
  • func (s *DurationStats) Stddev() time.Duration
  • func (s *DurationStats) Variance() float64

Types

type DurationHistogram

type DurationHistogram struct {
	N          int
	OutOfRange int
	sync.RWMutex
	// contains filtered or unexported fields
}

DurationHistogram is a histogram divided into N adjacent configurable ranges.

func NewDurationHistogram

func NewDurationHistogram(steps, ends []time.Duration) (h DurationHistogram)

func (*DurationHistogram) Push

func (h *DurationHistogram) Push(d time.Duration)

Push adds the duration to the histogram.

func (*DurationHistogram) String

func (h *DurationHistogram) String(width int) (s string, oorp float64)

String returns the histogram with the maximum specified width, and a percentage of values that are out of range.

type DurationStats

type DurationStats struct {
	Total time.Duration
	N     uint
	Min   time.Duration
	Max   time.Duration
	// contains filtered or unexported fields
}

DurationStats keeps basic time.Duration statistics. Welford's method is used to keep a running mean and standard deviation.

func (*DurationStats) IsZero

func (s *DurationStats) IsZero() bool

func (*DurationStats) Mean

func (s *DurationStats) Mean() time.Duration

func (*DurationStats) Push

func (s *DurationStats) Push(d time.Duration)

func (*DurationStats) Stddev

func (s *DurationStats) Stddev() time.Duration

func (*DurationStats) Variance

func (s *DurationStats) Variance() float64