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opentelemetry-go/api/trace/testtrace/b3_propagator_benchmark_test.go

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// Copyright 2019, OpenTelemetry 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 testtrace_test
import (
"context"
"net/http"
"testing"
"go.opentelemetry.io/otel/api/trace"
mocktrace "go.opentelemetry.io/otel/internal/trace"
)
func BenchmarkExtractB3(b *testing.B) {
testGroup := []struct {
singleHeader bool
name string
tests []extractTest
}{
{
singleHeader: false,
name: "multiple headers",
tests: extractMultipleHeaders,
},
{
singleHeader: true,
name: "single headers",
tests: extractSingleHeader,
},
{
singleHeader: false,
name: "invalid multiple headers",
tests: extractInvalidB3MultipleHeaders,
},
{
singleHeader: true,
name: "invalid single headers",
tests: extractInvalidB3SingleHeader,
},
}
for _, tg := range testGroup {
propagator := trace.B3{SingleHeader: tg.singleHeader}
for _, tt := range tg.tests {
traceBenchmark(tg.name+"/"+tt.name, b, func(b *testing.B) {
ctx := context.Background()
req, _ := http.NewRequest("GET", "http://example.com", nil)
for h, v := range tt.headers {
req.Header.Set(h, v)
}
b.ReportAllocs()
b.ResetTimer()
for i := 0; i < b.N; i++ {
_ = propagator.Extract(ctx, req.Header)
}
})
}
}
}
func BenchmarkInjectB3(b *testing.B) {
var id uint64
testGroup := []struct {
singleHeader bool
name string
tests []injectTest
}{
{
singleHeader: false,
name: "multiple headers",
tests: injectB3MultipleHeader,
},
{
singleHeader: true,
name: "single headers",
tests: injectB3SingleleHeader,
},
}
mockTracer := &mocktrace.MockTracer{
Sampled: false,
StartSpanID: &id,
}
for _, tg := range testGroup {
id = 0
propagator := trace.B3{SingleHeader: tg.singleHeader}
for _, tt := range tg.tests {
traceBenchmark(tg.name+"/"+tt.name, b, func(b *testing.B) {
req, _ := http.NewRequest("GET", "http://example.com", nil)
ctx := context.Background()
if tt.parentSc.IsValid() {
ctx = trace.ContextWithRemoteSpanContext(ctx, tt.parentSc)
}
ctx, _ = mockTracer.Start(ctx, "inject")
b.ReportAllocs()
b.ResetTimer()
for i := 0; i < b.N; i++ {
propagator.Inject(ctx, req.Header)
}
})
}
}
}
func traceBenchmark(name string, b *testing.B, fn func(*testing.B)) {
b.Run(name, func(b *testing.B) {
b.ReportAllocs()
fn(b)
})
b.Run(name, func(b *testing.B) {
b.ReportAllocs()
fn(b)
})
}