diff --git a/binary/protobuf.go b/binary/protobuf.go
index ba520612..c36a7e92 100644
--- a/binary/protobuf.go
+++ b/binary/protobuf.go
@@ -72,31 +72,17 @@ func (en *encoder) uvarint(v uint64) {
 }
 
 func (en *encoder) svarint(v int64) {
-	if v >= 0 {
-		en.uvarint(uint64(v) << 1)
-	} else {
-		en.uvarint(^uint64(v << 1))
-	}
+	en.uvarint(uint64(v)<<1 ^ uint64(v>>63))
 }
 
 func (en *encoder) u32(v uint32) {
-	var b [4]byte
-	b[0] = byte(v)
-	b[1] = byte(v >> 8)
-	b[2] = byte(v >> 16)
-	b[3] = byte(v >> 24)
+	var b [8]byte
+	binary.LittleEndian.PutUint32(b[:], v)
 	_, _ = en.Write(b[:])
 }
 
 func (en *encoder) u64(v uint64) {
 	var b [8]byte
-	b[0] = byte(v)
-	b[1] = byte(v >> 8)
-	b[2] = byte(v >> 16)
-	b[3] = byte(v >> 24)
-	b[4] = byte(v >> 32)
-	b[5] = byte(v >> 40)
-	b[6] = byte(v >> 48)
-	b[7] = byte(v >> 56)
+	binary.LittleEndian.PutUint64(b[:], v)
 	_, _ = en.Write(b[:])
 }
diff --git a/binary/protobuf_test.go b/binary/protobuf_test.go
index d919e707..844bab50 100644
--- a/binary/protobuf_test.go
+++ b/binary/protobuf_test.go
@@ -13,6 +13,14 @@ func benchEncoderUvarint(b *testing.B, v uint64) {
 	}
 }
 
+func benchEncoderSvarint(b *testing.B, v int64) {
+	e := encoder{}
+	for i := 0; i < b.N; i++ {
+		e.Reset()
+		e.svarint(v)
+	}
+}
+
 func Benchmark_encoder_uvarint(b *testing.B) {
 	b.Run("short", func(b *testing.B) {
 		benchEncoderUvarint(b, uint64(1))
@@ -24,3 +32,15 @@ func Benchmark_encoder_uvarint(b *testing.B) {
 		benchEncoderUvarint(b, math.MaxUint64)
 	})
 }
+
+func Benchmark_encoder_svarint(b *testing.B) {
+	b.Run("short", func(b *testing.B) {
+		benchEncoderSvarint(b, int64(1))
+	})
+	b.Run("medium", func(b *testing.B) {
+		benchEncoderSvarint(b, int64(114514))
+	})
+	b.Run("large", func(b *testing.B) {
+		benchEncoderSvarint(b, math.MaxInt64)
+	})
+}