ActiveGo 1.8Package generic
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type Bucket ¶
Bucket is a range in a histogram which aggregates observations.
type Bucket struct {
From, To, Count int64
}
type Counter ¶
Counter is an in-memory implementation of a Counter.
type Counter struct {
Name string
// contains filtered or unexported fields
}
func NewCounter ¶
func NewCounter(name string) *Counter
NewCounter returns a new, usable Counter.
func (*Counter) Add ¶
func (c *Counter) Add(delta float64)
Add implements Counter.
func (*Counter) LabelValues ¶
func (c *Counter) LabelValues() []string
LabelValues returns the set of label values attached to the counter.
func (*Counter) Value ¶
func (c *Counter) Value() float64
Value returns the current value of the counter.
func (*Counter) ValueReset ¶
func (c *Counter) ValueReset() float64
ValueReset returns the current value of the counter, and resets it to zero. This is useful for metrics backends whose counter aggregations expect deltas, like Graphite.
func (*Counter) With ¶
func (c *Counter) With(labelValues ...string) metrics.Counter
With implements Counter.
type Gauge ¶
Gauge is an in-memory implementation of a Gauge.
type Gauge struct {
Name string
// contains filtered or unexported fields
}
func NewGauge ¶
func NewGauge(name string) *Gauge
NewGauge returns a new, usable Gauge.
func (*Gauge) Add ¶
func (g *Gauge) Add(delta float64)
Add implements metrics.Gauge.
func (*Gauge) LabelValues ¶
func (g *Gauge) LabelValues() []string
LabelValues returns the set of label values attached to the gauge.
func (*Gauge) Set ¶
func (g *Gauge) Set(value float64)
Set implements Gauge.
func (*Gauge) Value ¶
func (g *Gauge) Value() float64
Value returns the current value of the gauge.
func (*Gauge) With ¶
func (g *Gauge) With(labelValues ...string) metrics.Gauge
With implements Gauge.
type Histogram ¶
Histogram is an in-memory implementation of a streaming histogram, based on VividCortex/gohistogram. It dynamically computes quantiles, so it's not suitable for aggregation.
type Histogram struct {
Name string
// contains filtered or unexported fields
}
func NewHistogram ¶
func NewHistogram(name string, buckets int) *Histogram
NewHistogram returns a numeric histogram based on VividCortex/gohistogram. A good default value for buckets is 50.
func (*Histogram) LabelValues ¶
func (h *Histogram) LabelValues() []string
LabelValues returns the set of label values attached to the histogram.
func (*Histogram) Observe ¶
func (h *Histogram) Observe(value float64)
Observe implements Histogram.
func (*Histogram) Print ¶
func (h *Histogram) Print(w io.Writer)
Print writes a string representation of the histogram to the passed writer. Useful for printing to a terminal.
func (*Histogram) Quantile ¶
func (h *Histogram) Quantile(q float64) float64
Quantile returns the value of the quantile q, 0.0 < q < 1.0.
func (*Histogram) With ¶
func (h *Histogram) With(labelValues ...string) metrics.Histogram
With implements Histogram.
type Quantile ¶
Quantile is a pair of a quantile (0..100) and its observed maximum value.
type Quantile struct {
Quantile int // 0..100
Value int64
}
type SimpleHistogram ¶
SimpleHistogram is an in-memory implementation of a Histogram. It only tracks an approximate moving average, so is likely too naïve for many use cases.
type SimpleHistogram struct {
// contains filtered or unexported fields
}
func NewSimpleHistogram ¶
func NewSimpleHistogram() *SimpleHistogram
NewSimpleHistogram returns a SimpleHistogram, ready for observations.
func (*SimpleHistogram) ApproximateMovingAverage ¶
func (h *SimpleHistogram) ApproximateMovingAverage() float64
ApproximateMovingAverage returns the approximate moving average of observations.
func (*SimpleHistogram) LabelValues ¶
func (h *SimpleHistogram) LabelValues() []string
LabelValues returns the set of label values attached to the histogram.
func (*SimpleHistogram) Observe ¶
func (h *SimpleHistogram) Observe(value float64)
Observe implements Histogram.
func (*SimpleHistogram) With ¶
func (h *SimpleHistogram) With(labelValues ...string) metrics.Histogram
With implements Histogram.