How to use add method of metrics Package

Best K6 code snippet using metrics.add

accumulator_test.go

Source:accumulator_test.go

...30		actual)31}32func TestAddDefaultTags(t *testing.T) {33	a := accumulator{}34	a.addDefaultTag("default", "tag")35	now := time.Now()36	a.metrics = make(chan telegraf.Metric, 10)37	defer close(a.metrics)38	a.inputConfig = &internal_models.InputConfig{}39	a.Add("acctest", float64(101), map[string]string{})40	a.Add("acctest", float64(101), map[string]string{"acc": "test"})41	a.Add("acctest", float64(101), map[string]string{"acc": "test"}, now)42	testm := <-a.metrics43	actual := testm.String()44	assert.Contains(t, actual, "acctest,default=tag value=101")45	testm = <-a.metrics46	actual = testm.String()47	assert.Contains(t, actual, "acctest,acc=test,default=tag value=101")48	testm = <-a.metrics49	actual = testm.String()50	assert.Equal(t,51		fmt.Sprintf("acctest,acc=test,default=tag value=101 %d", now.UnixNano()),52		actual)53}54func TestAddFields(t *testing.T) {55	a := accumulator{}56	now := time.Now()57	a.metrics = make(chan telegraf.Metric, 10)58	defer close(a.metrics)59	a.inputConfig = &internal_models.InputConfig{}60	fields := map[string]interface{}{61		"usage": float64(99),62	}63	a.AddFields("acctest", fields, map[string]string{})64	a.AddFields("acctest", fields, map[string]string{"acc": "test"})65	a.AddFields("acctest", fields, map[string]string{"acc": "test"}, now)66	testm := <-a.metrics67	actual := testm.String()68	assert.Contains(t, actual, "acctest usage=99")69	testm = <-a.metrics70	actual = testm.String()71	assert.Contains(t, actual, "acctest,acc=test usage=99")72	testm = <-a.metrics73	actual = testm.String()74	assert.Equal(t,75		fmt.Sprintf("acctest,acc=test usage=99 %d", now.UnixNano()),76		actual)77}78// Test that all Inf fields get dropped, and not added to metrics channel79func TestAddInfFields(t *testing.T) {80	inf := math.Inf(1)81	ninf := math.Inf(-1)82	a := accumulator{}83	now := time.Now()84	a.metrics = make(chan telegraf.Metric, 10)85	defer close(a.metrics)86	a.inputConfig = &internal_models.InputConfig{}87	fields := map[string]interface{}{88		"usage":  inf,89		"nusage": ninf,90	}91	a.AddFields("acctest", fields, map[string]string{})92	a.AddFields("acctest", fields, map[string]string{"acc": "test"})93	a.AddFields("acctest", fields, map[string]string{"acc": "test"}, now)94	assert.Len(t, a.metrics, 0)95	// test that non-inf fields are kept and not dropped96	fields["notinf"] = float64(100)97	a.AddFields("acctest", fields, map[string]string{})98	testm := <-a.metrics99	actual := testm.String()100	assert.Contains(t, actual, "acctest notinf=100")101}102// Test that nan fields are dropped and not added103func TestAddNaNFields(t *testing.T) {104	nan := math.NaN()105	a := accumulator{}106	now := time.Now()107	a.metrics = make(chan telegraf.Metric, 10)108	defer close(a.metrics)109	a.inputConfig = &internal_models.InputConfig{}110	fields := map[string]interface{}{111		"usage": nan,112	}113	a.AddFields("acctest", fields, map[string]string{})114	a.AddFields("acctest", fields, map[string]string{"acc": "test"})115	a.AddFields("acctest", fields, map[string]string{"acc": "test"}, now)116	assert.Len(t, a.metrics, 0)117	// test that non-nan fields are kept and not dropped118	fields["notnan"] = float64(100)119	a.AddFields("acctest", fields, map[string]string{})120	testm := <-a.metrics121	actual := testm.String()122	assert.Contains(t, actual, "acctest notnan=100")123}124func TestAddUint64Fields(t *testing.T) {125	a := accumulator{}126	now := time.Now()127	a.metrics = make(chan telegraf.Metric, 10)128	defer close(a.metrics)129	a.inputConfig = &internal_models.InputConfig{}130	fields := map[string]interface{}{131		"usage": uint64(99),132	}133	a.AddFields("acctest", fields, map[string]string{})134	a.AddFields("acctest", fields, map[string]string{"acc": "test"})135	a.AddFields("acctest", fields, map[string]string{"acc": "test"}, now)136	testm := <-a.metrics137	actual := testm.String()138	assert.Contains(t, actual, "acctest usage=99i")139	testm = <-a.metrics140	actual = testm.String()141	assert.Contains(t, actual, "acctest,acc=test usage=99i")142	testm = <-a.metrics143	actual = testm.String()144	assert.Equal(t,145		fmt.Sprintf("acctest,acc=test usage=99i %d", now.UnixNano()),146		actual)147}148func TestAddUint64Overflow(t *testing.T) {149	a := accumulator{}150	now := time.Now()151	a.metrics = make(chan telegraf.Metric, 10)152	defer close(a.metrics)153	a.inputConfig = &internal_models.InputConfig{}154	fields := map[string]interface{}{155		"usage": uint64(9223372036854775808),156	}157	a.AddFields("acctest", fields, map[string]string{})158	a.AddFields("acctest", fields, map[string]string{"acc": "test"})159	a.AddFields("acctest", fields, map[string]string{"acc": "test"}, now)160	testm := <-a.metrics161	actual := testm.String()162	assert.Contains(t, actual, "acctest usage=9223372036854775807i")163	testm = <-a.metrics164	actual = testm.String()165	assert.Contains(t, actual, "acctest,acc=test usage=9223372036854775807i")166	testm = <-a.metrics167	actual = testm.String()168	assert.Equal(t,169		fmt.Sprintf("acctest,acc=test usage=9223372036854775807i %d", now.UnixNano()),170		actual)171}172func TestAddInts(t *testing.T) {173	a := accumulator{}174	a.addDefaultTag("default", "tag")175	now := time.Now()176	a.metrics = make(chan telegraf.Metric, 10)177	defer close(a.metrics)178	a.inputConfig = &internal_models.InputConfig{}179	a.Add("acctest", int(101), map[string]string{})180	a.Add("acctest", int32(101), map[string]string{"acc": "test"})181	a.Add("acctest", int64(101), map[string]string{"acc": "test"}, now)182	testm := <-a.metrics183	actual := testm.String()184	assert.Contains(t, actual, "acctest,default=tag value=101i")185	testm = <-a.metrics186	actual = testm.String()187	assert.Contains(t, actual, "acctest,acc=test,default=tag value=101i")188	testm = <-a.metrics189	actual = testm.String()190	assert.Equal(t,191		fmt.Sprintf("acctest,acc=test,default=tag value=101i %d", now.UnixNano()),192		actual)193}194func TestAddFloats(t *testing.T) {195	a := accumulator{}196	a.addDefaultTag("default", "tag")197	now := time.Now()198	a.metrics = make(chan telegraf.Metric, 10)199	defer close(a.metrics)200	a.inputConfig = &internal_models.InputConfig{}201	a.Add("acctest", float32(101), map[string]string{"acc": "test"})202	a.Add("acctest", float64(101), map[string]string{"acc": "test"}, now)203	testm := <-a.metrics204	actual := testm.String()205	assert.Contains(t, actual, "acctest,acc=test,default=tag value=101")206	testm = <-a.metrics207	actual = testm.String()208	assert.Equal(t,209		fmt.Sprintf("acctest,acc=test,default=tag value=101 %d", now.UnixNano()),210		actual)211}212func TestAddStrings(t *testing.T) {213	a := accumulator{}214	a.addDefaultTag("default", "tag")215	now := time.Now()216	a.metrics = make(chan telegraf.Metric, 10)217	defer close(a.metrics)218	a.inputConfig = &internal_models.InputConfig{}219	a.Add("acctest", "test", map[string]string{"acc": "test"})220	a.Add("acctest", "foo", map[string]string{"acc": "test"}, now)221	testm := <-a.metrics222	actual := testm.String()223	assert.Contains(t, actual, "acctest,acc=test,default=tag value=\"test\"")224	testm = <-a.metrics225	actual = testm.String()226	assert.Equal(t,227		fmt.Sprintf("acctest,acc=test,default=tag value=\"foo\" %d", now.UnixNano()),228		actual)229}230func TestAddBools(t *testing.T) {231	a := accumulator{}232	a.addDefaultTag("default", "tag")233	now := time.Now()234	a.metrics = make(chan telegraf.Metric, 10)235	defer close(a.metrics)236	a.inputConfig = &internal_models.InputConfig{}237	a.Add("acctest", true, map[string]string{"acc": "test"})238	a.Add("acctest", false, map[string]string{"acc": "test"}, now)239	testm := <-a.metrics240	actual := testm.String()241	assert.Contains(t, actual, "acctest,acc=test,default=tag value=true")242	testm = <-a.metrics243	actual = testm.String()244	assert.Equal(t,245		fmt.Sprintf("acctest,acc=test,default=tag value=false %d", now.UnixNano()),246		actual)...

builtin_metrics.go

Source:builtin_metrics.go

1// Licensed to Elasticsearch B.V. under one or more contributor2// license agreements. See the NOTICE file distributed with3// this work for additional information regarding copyright4// ownership. Elasticsearch B.V. licenses this file to you under5// the Apache License, Version 2.0 (the "License"); you may6// not use this file except in compliance with the License.7// You may obtain a copy of the License at8//9//     http://www.apache.org/licenses/LICENSE-2.010//11// Unless required by applicable law or agreed to in writing,12// software distributed under the License is distributed on an13// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY14// KIND, either express or implied.  See the License for the15// specific language governing permissions and limitations16// under the License.17package apm18import (19	"context"20	"runtime"21	sysinfo "github.com/elastic/go-sysinfo"22	"github.com/elastic/go-sysinfo/types"23)24// builtinMetricsGatherer is an MetricsGatherer which gathers builtin metrics:25//   - goroutines26//   - memstats (allocations, usage, GC, etc.)27//   - system and process CPU and memory usage28type builtinMetricsGatherer struct {29	tracer         *Tracer30	lastSysMetrics sysMetrics31}32func newBuiltinMetricsGatherer(t *Tracer) *builtinMetricsGatherer {33	g := &builtinMetricsGatherer{tracer: t}34	if metrics, err := gatherSysMetrics(); err == nil {35		g.lastSysMetrics = metrics36	}37	return g38}39// GatherMetrics gathers mem metrics into m.40func (g *builtinMetricsGatherer) GatherMetrics(ctx context.Context, m *Metrics) error {41	m.Add("golang.goroutines", nil, float64(runtime.NumGoroutine()))42	g.gatherSystemMetrics(m)43	g.gatherMemStatsMetrics(m)44	return nil45}46func (g *builtinMetricsGatherer) gatherSystemMetrics(m *Metrics) {47	metrics, err := gatherSysMetrics()48	if err != nil {49		return50	}51	systemCPU, processCPU := calculateCPUUsage(metrics.cpu, g.lastSysMetrics.cpu)52	m.Add("system.cpu.total.norm.pct", nil, systemCPU)53	m.Add("system.process.cpu.total.norm.pct", nil, processCPU)54	m.Add("system.memory.total", nil, float64(metrics.mem.system.Total))55	m.Add("system.memory.actual.free", nil, float64(metrics.mem.system.Available))56	m.Add("system.process.memory.size", nil, float64(metrics.mem.process.Virtual))57	m.Add("system.process.memory.rss.bytes", nil, float64(metrics.mem.process.Resident))58	g.lastSysMetrics = metrics59}60func (g *builtinMetricsGatherer) gatherMemStatsMetrics(m *Metrics) {61	var mem runtime.MemStats62	runtime.ReadMemStats(&mem)63	addUint64 := func(name string, v uint64) {64		m.Add(name, nil, float64(v))65	}66	add := func(name string, v float64) {67		m.Add(name, nil, v)68	}69	addUint64("golang.heap.allocations.mallocs", mem.Mallocs)70	addUint64("golang.heap.allocations.frees", mem.Frees)71	addUint64("golang.heap.allocations.objects", mem.HeapObjects)72	addUint64("golang.heap.allocations.total", mem.TotalAlloc)73	addUint64("golang.heap.allocations.allocated", mem.HeapAlloc)74	addUint64("golang.heap.allocations.idle", mem.HeapIdle)75	addUint64("golang.heap.allocations.active", mem.HeapInuse)76	addUint64("golang.heap.system.total", mem.Sys)77	addUint64("golang.heap.system.obtained", mem.HeapSys)78	addUint64("golang.heap.system.stack", mem.StackSys)79	addUint64("golang.heap.system.released", mem.HeapReleased)80	addUint64("golang.heap.gc.next_gc_limit", mem.NextGC)81	addUint64("golang.heap.gc.total_count", uint64(mem.NumGC))82	addUint64("golang.heap.gc.total_pause.ns", mem.PauseTotalNs)83	add("golang.heap.gc.cpu_fraction", mem.GCCPUFraction)84}85func calculateCPUUsage(current, last cpuMetrics) (systemUsage, processUsage float64) {86	idleDelta := current.system.Idle + current.system.IOWait - last.system.Idle - last.system.IOWait87	systemTotalDelta := current.system.Total() - last.system.Total()88	if systemTotalDelta <= 0 {89		return 0, 090	}91	idlePercent := float64(idleDelta) / float64(systemTotalDelta)92	systemUsage = 1 - idlePercent93	processTotalDelta := current.process.Total() - last.process.Total()94	processUsage = float64(processTotalDelta) / float64(systemTotalDelta)95	return systemUsage, processUsage96}97type sysMetrics struct {...

add

Using AI Code Generation

1import (2func main() {3    reg := prometheus.NewRegistry()4    counter := promauto.With(reg).NewCounter(prometheus.CounterOpts{5    })6    counter.Add(1)7    reg.MustRegister(prometheus.NewBuildInfoCollector())8    reg.MustRegister(prometheus.NewGoCollector())9    http.Handle("/metrics", promhttp.HandlerFor(reg, promhttp.HandlerOpts{}))10    http.ListenAndServe(":2112", nil)11}

add

Using AI Code Generation

1import (2func main() {3    http.Handle("/metrics", promhttp.Handler())4    log.Fatal(http.ListenAndServe(":8080", nil))5}6import (7var (8    metrics = promauto.NewCounterVec(prometheus.CounterOpts{9    },10    []string{"method", "endpoint"},11}

add

Using AI Code Generation

1import (2func main() {3    fmt.Println("Hello, playground")4    m.Add(1)5    fmt.Println(m.Value())6}7import (8func main() {9    fmt.Println("Hello, playground")10    m.Add(1)11    fmt.Println(m.Value())12}13import (14func main() {15    fmt.Println("Hello, playground")16    m.Add(1)17    fmt.Println(m.Value())18}19import (20func main() {21    fmt.Println("Hello, playground")22    m.Add(1)23    fmt.Println(m.Value())24}25import (26func main() {27    fmt.Println("Hello, playground")28    m.Add(1)29    fmt.Println(m.Value())30}31import (32func main() {33    fmt.Println("Hello, playground")34    m.Add(1)35    fmt.Println(m.Value())36}37import (38func main() {39    fmt.Println("Hello, playground")40    m.Add(1)41    fmt.Println(m.Value())42}43import (44func main() {45    fmt.Println("Hello, playground")46    m.Add(1)47    fmt.Println(m.Value())48}49import (50func main() {

add

Using AI Code Generation

1import (2func main() {3    fmt.Println("Hello World")4}5import (6func main() {7    fmt.Println("Hello World")8}9import (10func main() {11    fmt.Println("Hello World")12}13import (14func main() {15    fmt.Println("Hello World")16}17import (18func main() {19    fmt.Println("Hello World")20}21import (22func main() {23    fmt.Println("Hello World")24}25import (26func main() {27    fmt.Println("Hello World")28}29import (30func main() {31    fmt.Println("Hello World")32}33import (34func add(a int, b int) int {35}36import (

add

Using AI Code Generation

1import (2func main() {3    m := metrics.New()4    m.Add(1)5    fmt.Println(m.Value())6}7import "fmt"8type Metrics struct {9}10func (m *Metrics) Add(i int) {11}12func (m *Metrics) Value() int {13}14func main() {15    m := Metrics{}16    m.Add(1)17    fmt.Println(m.Value())18}

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