benchmark for ssz vs json encoding

types/encoding_bench_test.go

@@ -0,0 +1,54 @@
+package types
+
+import (
+	"encoding/json"
+	"os"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func BenchmarkJSONvsSSZEncoding(b *testing.B) {
+	var err error
+	jsonFile, err := os.Open("../testdata/signed-blinded-beacon-block-with-deposit.json")
+	require.NoError(b, err)
+	defer jsonFile.Close()
+	signedBlindedBeaconBlock := new(SignedBlindedBeaconBlock)
+	require.NoError(b, DecodeJSON(jsonFile, &signedBlindedBeaconBlock))
+
+	blindedBeaconBlock := signedBlindedBeaconBlock.Message
+	blindedBeaconBlockJSONBytes, err := json.Marshal(blindedBeaconBlock)
+	require.NoError(b, err)
+	blindedBeaconBlockSSZBytes, err := blindedBeaconBlock.MarshalSSZ()
+	require.NoError(b, err)
+
+	b.Run("Encode JSON", func(b *testing.B) {
+		for n := 0; n < b.N; n++ {
+			_, err = json.Marshal(blindedBeaconBlock)
+			require.NoError(b, err)
+		}
+	})
+
+	b.Run("Encode SSZ", func(b *testing.B) {
+		for n := 0; n < b.N; n++ {
+			_, err = blindedBeaconBlock.MarshalSSZ()
+			require.NoError(b, err)
+		}
+	})
+
+	b.Run("Decode JSON", func(b *testing.B) {
+		_blindedBeaconBlock := new(BlindedBeaconBlock)
+		for n := 0; n < b.N; n++ {
+			err = json.Unmarshal(blindedBeaconBlockJSONBytes, _blindedBeaconBlock)
+			require.NoError(b, err)
+		}
+	})
+
+	b.Run("Decode SSZ", func(b *testing.B) {
+		_blindedBeaconBlock := new(BlindedBeaconBlock)
+		for n := 0; n < b.N; n++ {
+			err = _blindedBeaconBlock.UnmarshalSSZ(blindedBeaconBlockSSZBytes)
+			require.NoError(b, err)
+		}
+	})
+}