client_golang/api/prometheus/v1/api_bench_test.go

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// Copyright 2019 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 v1
import (
"encoding/json"
"strconv"
"testing"
"time"
jsoniter "github.com/json-iterator/go"
"github.com/prometheus/common/model"
)
func generateData(timeseries, datapoints int) model.Matrix {
m := make(model.Matrix, 0)
for i := 0; i < timeseries; i++ {
lset := map[model.LabelName]model.LabelValue{
model.MetricNameLabel: model.LabelValue("timeseries_" + strconv.Itoa(i)),
}
now := model.Now()
values := make([]model.SamplePair, datapoints)
for x := datapoints; x > 0; x-- {
values[x-1] = model.SamplePair{
// Set the time back assuming a 15s interval. Since this is used for
// Marshal/Unmarshal testing the actual interval doesn't matter.
Timestamp: now.Add(time.Second * -15 * time.Duration(x)),
Value: model.SampleValue(float64(x)),
}
}
ss := &model.SampleStream{
Metric: model.Metric(lset),
Values: values,
}
m = append(m, ss)
}
return m
}
func BenchmarkSamplesJsonSerialization(b *testing.B) {
for _, timeseriesCount := range []int{10, 100, 1000} {
b.Run(strconv.Itoa(timeseriesCount), func(b *testing.B) {
for _, datapointCount := range []int{10, 100, 1000} {
b.Run(strconv.Itoa(datapointCount), func(b *testing.B) {
data := generateData(timeseriesCount, datapointCount)
dataBytes, err := json.Marshal(data)
if err != nil {
b.Fatalf("Error marshaling: %v", err)
}
b.Run("marshal", func(b *testing.B) {
b.Run("encoding/json", func(b *testing.B) {
b.ReportAllocs()
for i := 0; i < b.N; i++ {
if _, err := json.Marshal(data); err != nil {
b.Fatal(err)
}
}
})
b.Run("jsoniter", func(b *testing.B) {
b.ReportAllocs()
for i := 0; i < b.N; i++ {
if _, err := jsoniter.Marshal(data); err != nil {
b.Fatal(err)
}
}
})
})
b.Run("unmarshal", func(b *testing.B) {
b.Run("encoding/json", func(b *testing.B) {
b.ReportAllocs()
var m model.Matrix
for i := 0; i < b.N; i++ {
if err := json.Unmarshal(dataBytes, &m); err != nil {
b.Fatal(err)
}
}
})
b.Run("jsoniter", func(b *testing.B) {
b.ReportAllocs()
var m model.Matrix
for i := 0; i < b.N; i++ {
if err := jsoniter.Unmarshal(dataBytes, &m); err != nil {
b.Fatal(err)
}
}
})
})
})
}
})
}
}