metrics

Documentation

Overview

Package metrics contains helpers for performance metric management inside the policy engine.

Index

• Constants
• type Counter
• type Histogram
• type Info
• type Metrics
  • func New() Metrics
• type Timer

Constants

const (
	ServerHandler       = "server_handler"
	ServerQueryCacheHit = "server_query_cache_hit"
	RegoQueryCompile    = "rego_query_compile"
	RegoQueryEval       = "rego_query_eval"
	RegoQueryParse      = "rego_query_parse"
	RegoModuleParse     = "rego_module_parse"
	RegoDataParse       = "rego_data_parse"
	RegoModuleCompile   = "rego_module_compile"
	RegoPartialEval     = "rego_partial_eval"
	RegoInputParse      = "rego_input_parse"
	RegoLoadFiles       = "rego_load_files"
	RegoLoadBundles     = "rego_load_bundles"
)

Well-known metric names.

Types

type Counter

type Counter interface {
	Value() interface{}
	Incr()
	Add(n uint64)
}

Counter defines the interface for a monotonic increasing counter.

type Histogram

type Histogram interface {
	Value() interface{}
	Update(int64)
}

Histogram defines the interface for a histogram with hardcoded percentiles.

type Info

type Info struct {
	Name string `json:"name"` // name is a unique human-readable identifier for the provider.
}

Info contains attributes describing the underlying metrics provider.

type Metrics

type Metrics interface {
	Info() Info
	Timer(name string) Timer
	Histogram(name string) Histogram
	Counter(name string) Counter
	All() map[string]interface{}
	Clear()
	json.Marshaler
}

Metrics defines the interface for a collection of performance metrics in the policy engine.

func New

func New() Metrics

New returns a new Metrics object.

type Timer

type Timer interface {
	Value() interface{}
	Int64() int64
	Start()
	Stop() int64
}

Timer defines the interface for a restartable timer that accumulates elapsed time.