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// Copyright The OpenTelemetry Authors
// SPDX-License-Identifier: Apache-2.0
package otelgrpc_test
import (
"context"
"net"
"testing"
"google.golang.org/grpc"
"google.golang.org/grpc/credentials/insecure"
"google.golang.org/grpc/test/bufconn"
"go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc"
"go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc/internal/test"
"go.opentelemetry.io/otel/trace/noop"
pb "google.golang.org/grpc/interop/grpc_testing"
)
const bufSize = 2048
var tracerProvider = noop.NewTracerProvider()
func benchmark(b *testing.B, cOpt []grpc.DialOption, sOpt []grpc.ServerOption) {
l := bufconn.Listen(bufSize)
defer l.Close()
s := grpc.NewServer(sOpt...)
pb.RegisterTestServiceServer(s, test.NewTestServer())
go func() {
if err := s.Serve(l); err != nil {
panic(err)
}
}()
defer s.Stop()
ctx := context.Background()
dial := func(context.Context, string) (net.Conn, error) { return l.Dial() }
conn, err := grpc.NewClient(
"passthrough:bufnet",
append([]grpc.DialOption{
grpc.WithContextDialer(dial),
grpc.WithTransportCredentials(insecure.NewCredentials()),
}, cOpt...)...,
)
if err != nil {
b.Fatalf("Failed to dial bufnet: %v", err)
}
defer conn.Close()
client := pb.NewTestServiceClient(conn)
b.ReportAllocs()
b.ResetTimer()
for n := 0; n < b.N; n++ {
test.DoEmptyUnaryCall(ctx, client)
test.DoLargeUnaryCall(ctx, client)
test.DoClientStreaming(ctx, client)
test.DoServerStreaming(ctx, client)
test.DoPingPong(ctx, client)
test.DoEmptyStream(ctx, client)
}
b.StopTimer()
}
func BenchmarkNoInstrumentation(b *testing.B) {
benchmark(b, nil, nil)
}
func BenchmarkUnaryServerInterceptor(b *testing.B) {
benchmark(b, nil, []grpc.ServerOption{
grpc.UnaryInterceptor(otelgrpc.UnaryServerInterceptor(
otelgrpc.WithTracerProvider(tracerProvider),
)),
})
}
func BenchmarkStreamServerInterceptor(b *testing.B) {
benchmark(b, nil, []grpc.ServerOption{
grpc.StreamInterceptor(otelgrpc.StreamServerInterceptor(
otelgrpc.WithTracerProvider(tracerProvider),
)),
})
}
func BenchmarkUnaryClientInterceptor(b *testing.B) {
benchmark(b, []grpc.DialOption{
grpc.WithUnaryInterceptor(otelgrpc.UnaryClientInterceptor(
otelgrpc.WithTracerProvider(tracerProvider),
)),
}, nil)
}
func BenchmarkStreamClientInterceptor(b *testing.B) {
benchmark(b, []grpc.DialOption{
grpc.WithStreamInterceptor(otelgrpc.StreamClientInterceptor(
otelgrpc.WithTracerProvider(tracerProvider),
)),
}, nil)
}
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