Add benchmark for tracer vs recovery wrapper

eth/tracers/live/live_test.go

@@ -0,0 +1,41 @@
+package live
+
+import (
+	"testing"
+
+	"github.com/ethereum/go-ethereum/core/types"
+	"github.com/ethereum/go-ethereum/eth/tracers"
+	"github.com/ethereum/go-ethereum/node"
+)
+
+func BenchmarkNoopTracerHooks(b *testing.B) {
+	noopHooks, err := newNoopTracer(nil)
+	if err != nil {
+		b.Fatal(err)
+	}
+	b.ResetTimer()
+	for i := 0; i < b.N; i++ {
+		noopHooks.OnTxEnd(&types.Receipt{}, nil)
+	}
+}
+
+func BenchmarkRecoverTracerHooks(b *testing.B) {
+	noopHooks, err := newNoopTracer(nil)
+	if err != nil {
+		b.Fatal(err)
+	}
+	stack, err := node.New(&node.Config{})
+	if err != nil {
+		b.Fatal(err)
+	}
+	defer stack.Close()
+
+	recoverHooks, err := tracers.NewRecoverTracer(stack, noopHooks, false)
+	if err != nil {
+		b.Fatal(err)
+	}
+	b.ResetTimer()
+	for i := 0; i < b.N; i++ {
+		recoverHooks.OnTxEnd(&types.Receipt{}, nil)
+	}
+}