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// Copyright The OpenTelemetry Authors
// SPDX-License-Identifier: Apache-2.0
package resource_test
import (
"fmt"
"math/rand"
"testing"
"go.opentelemetry.io/otel/attribute"
"go.opentelemetry.io/otel/sdk/resource"
)
const conflict = 0.5
func makeAttrs(n int) (_, _ *resource.Resource) {
used := map[string]bool{}
l1 := make([]attribute.KeyValue, n)
l2 := make([]attribute.KeyValue, n)
for i := 0; i < n; i++ {
var k string
for {
k = fmt.Sprint("k", rand.Intn(1000000000))
if !used[k] {
used[k] = true
break
}
}
l1[i] = attribute.String(k, fmt.Sprint("v", rand.Intn(1000000000)))
if rand.Float64() < conflict {
l2[i] = l1[i]
} else {
l2[i] = attribute.String(k, fmt.Sprint("v", rand.Intn(1000000000)))
}
}
return resource.NewSchemaless(l1...), resource.NewSchemaless(l2...)
}
func benchmarkMergeResource(b *testing.B, size int) {
r1, r2 := makeAttrs(size)
b.ReportAllocs()
b.ResetTimer()
for i := 0; i < b.N; i++ {
_, _ = resource.Merge(r1, r2)
}
}
func BenchmarkMergeResource_1(b *testing.B) {
benchmarkMergeResource(b, 1)
}
func BenchmarkMergeResource_2(b *testing.B) {
benchmarkMergeResource(b, 2)
}
func BenchmarkMergeResource_3(b *testing.B) {
benchmarkMergeResource(b, 3)
}
func BenchmarkMergeResource_4(b *testing.B) {
benchmarkMergeResource(b, 4)
}
func BenchmarkMergeResource_6(b *testing.B) {
benchmarkMergeResource(b, 6)
}
func BenchmarkMergeResource_8(b *testing.B) {
benchmarkMergeResource(b, 8)
}
func BenchmarkMergeResource_16(b *testing.B) {
benchmarkMergeResource(b, 16)
}
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