statsd_exporter/exporter_benchmark_test.go

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// Copyright 2013 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package main
import (
"fmt"
"testing"
"github.com/prometheus/statsd_exporter/pkg/mapper"
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)
func benchmarkUDPListener(times int, b *testing.B) {
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input := []string{
"foo1:2|c",
"foo2:3|g",
"foo3:200|ms",
"foo4:100|c|#tag1:bar,tag2:baz",
"foo5:100|c|#tag1:bar,#tag2:baz",
"foo6:100|c|#09digits:0,tag.with.dots:1",
"foo10:100|c|@0.1|#tag1:bar,#tag2:baz",
"foo11:100|c|@0.1|#tag1:foo:bar",
"foo15:200|ms:300|ms:5|c|@0.1:6|g\nfoo15a:1|c:5|ms",
"some_very_useful_metrics_with_quite_a_log_name:13|c",
}
bytesInput := make([]string, len(input)*times)
for run := 0; run < times; run++ {
for i := 0; i < len(input); i++ {
bytesInput[run*len(input)+i] = fmt.Sprintf("run%d%s", run, input[i])
}
}
for n := 0; n < b.N; n++ {
// there are more events than input lines, need bigger buffer
events := make(chan Events, len(bytesInput)*times*2)
l := StatsDUDPListener{eventHandler: &unbufferedEventHandler{c: events}}
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for i := 0; i < times; i++ {
for _, line := range bytesInput {
l.handlePacket([]byte(line))
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}
}
}
}
func BenchmarkUDPListener1(b *testing.B) {
benchmarkUDPListener(1, b)
}
func BenchmarkUDPListener5(b *testing.B) {
benchmarkUDPListener(5, b)
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}
func BenchmarkUDPListener50(b *testing.B) {
benchmarkUDPListener(50, b)
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}
func BenchmarkExporterListener(b *testing.B) {
events := Events{
&CounterEvent{ // simple counter
metricName: "counter",
value: 2,
},
&GaugeEvent{ // simple gauge
metricName: "gauge",
value: 10,
},
&TimerEvent{ // simple timer
metricName: "timer",
value: 200,
},
&TimerEvent{ // simple histogram
metricName: "histogram.test",
value: 200,
},
&CounterEvent{ // simple_tags
metricName: "simple_tags",
value: 100,
labels: map[string]string{
"alpha": "bar",
"bravo": "baz",
},
},
&CounterEvent{ // slightly different tags
metricName: "simple_tags",
value: 100,
labels: map[string]string{
"alpha": "bar",
"charlie": "baz",
},
},
&CounterEvent{ // and even more different tags
metricName: "simple_tags",
value: 100,
labels: map[string]string{
"alpha": "bar",
"bravo": "baz",
"golf": "looooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooong",
},
},
&CounterEvent{ // datadog tag extension with complex tags
metricName: "foo",
value: 100,
labels: map[string]string{
"action": "test",
"application": "testapp",
"application_component": "testcomp",
"application_role": "test_role",
"category": "category",
"controller": "controller",
"deployed_to": "production",
"kube_deployment": "deploy",
"kube_namespace": "kube-production",
"method": "get",
"version": "5.2.8374",
"status": "200",
"status_range": "2xx",
},
},
}
config := `
mappings:
- match: histogram.test
timer_type: histogram
name: "histogram_test"
`
testMapper := &mapper.MetricMapper{}
err := testMapper.InitFromYAMLString(config, 0)
if err != nil {
b.Fatalf("Config load error: %s %s", config, err)
}
ex := NewExporter(testMapper)
for i := 0; i < b.N; i++ {
ec := make(chan Events, 1000)
go func() {
for i := 0; i < 1000; i++ {
ec <- events
}
close(ec)
}()
ex.Listen(ec)
}
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}