stopwatch

type Metric ¶

type Metric interface {
	Stop()
}

type Stopwatch ¶

type Stopwatch struct {
	// contains filtered or unexported fields
}

Stopwatch is designed to measure the time of execution of code fragments. Unlike OpenTelemetry Tracing it is extremely simple and lightweight. Even small fragments can be measured.

There is no means for automatic transferring/collecting data somewhere (storage, etc.) Therefore, you need to explicitly call the Export() or GetValues() method

Stopwatch

• is not concurrent-safe
• supports nested metrics
• supports sampling (in case of frequent measurement of the same metric, for example in a cycle, not all measurements actually occur, in order to save resources)

func New() *Stopwatch

func (sw *Stopwatch) Export(m *prometheus.HistogramVec, options ...UpdateMetricOption)

func (sw *Stopwatch) ExportValuesAndCounts(mv, mc *prometheus.HistogramVec, options ...UpdateMetricOption)

func (sw *Stopwatch) GetCounts() map[string]uint32

func (sw *Stopwatch) GetValues() map[string]time.Duration

func (sw *Stopwatch) Reset()

func (sw *Stopwatch) Start(name string) Metric

func (sw *Stopwatch) Timer(name string) *Timer

type Timer ¶ added in v0.62.2

type Timer struct {
	// contains filtered or unexported fields
}

func (t *Timer) Start()

func (t *Timer) Stop()

type UpdateMetricOption ¶

type UpdateMetricOption func(prometheus.Labels) prometheus.Labels

func SetLabel(name, value string) UpdateMetricOption