SignedBlindedBeaconBlock SSZ + benchmark ssz vs json

Makefile

@@ -30,7 +30,7 @@ lint:
 
 generate-ssz:
 	rm -f types/builder_encoding.go types/signing_encoding.go types/common_encoding.go
-	sszgen --path types --include ../go-ethereum/common/hexutil --objs Eth1Data,BeaconBlockHeader,SignedBeaconBlockHeader,ProposerSlashing,Checkpoint,AttestationData,IndexedAttestation,AttesterSlashing,Attestation,Deposit,VoluntaryExit,SyncAggregate,ExecutionPayloadHeader,VersionedExecutionPayloadHeader,BlindedBeaconBlockBody,BlindedBeaconBlock,RegisterValidatorRequestMessage,BuilderBid,SignedBuilderBid,SigningData,ForkData,Transactions,BidTraceMessage,BuilderSubmitBlockRequestMessage,BuilderSubmitBlockResponseMessage
+	sszgen --path types --include ../go-ethereum/common/hexutil --objs Eth1Data,BeaconBlockHeader,SignedBeaconBlockHeader,ProposerSlashing,Checkpoint,AttestationData,IndexedAttestation,AttesterSlashing,Attestation,Deposit,VoluntaryExit,SyncAggregate,ExecutionPayloadHeader,VersionedExecutionPayloadHeader,BlindedBeaconBlockBody,BlindedBeaconBlock,SignedBlindedBeaconBlock,RegisterValidatorRequestMessage,BuilderBid,SignedBuilderBid,SigningData,ForkData,Transactions,BidTraceMessage,BuilderSubmitBlockRequestMessage,BuilderSubmitBlockResponseMessage
 
 cover:
 	go test -coverprofile=/tmp/go-sim-lb.cover.tmp ./...

types/encoding_bench_test.go

@@ -0,0 +1,52 @@
+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))
+	signedBlindedBeaconBlockJSONBytes, err := json.Marshal(signedBlindedBeaconBlock)
+	require.NoError(b, err)
+	signedBlindedBeaconBlockSSZBytes, err := signedBlindedBeaconBlock.MarshalSSZ()
+	require.NoError(b, err)
+
+	b.Run("Encode JSON", func(b *testing.B) {
+		for n := 0; n < b.N; n++ {
+			_, err = json.Marshal(signedBlindedBeaconBlock)
+			require.NoError(b, err)
+		}
+	})
+
+	b.Run("Encode SSZ", func(b *testing.B) {
+		for n := 0; n < b.N; n++ {
+			_, err = signedBlindedBeaconBlock.MarshalSSZ()
+			require.NoError(b, err)
+		}
+	})
+
+	b.Run("Decode JSON", func(b *testing.B) {
+		_blindedBeaconBlock := new(SignedBlindedBeaconBlock)
+		for n := 0; n < b.N; n++ {
+			err = json.Unmarshal(signedBlindedBeaconBlockJSONBytes, _blindedBeaconBlock)
+			require.NoError(b, err)
+		}
+	})
+
+	b.Run("Decode SSZ", func(b *testing.B) {
+		_blindedBeaconBlock := new(SignedBlindedBeaconBlock)
+		for n := 0; n < b.N; n++ {
+			err = _blindedBeaconBlock.UnmarshalSSZ(signedBlindedBeaconBlockSSZBytes)
+			require.NoError(b, err)
+		}
+	})
+}