diff --git a/port/js/benchmarks/fromEntries.benchmark.js b/port/js/benchmarks/fromEntries.benchmark.js
index b2aab11..ee44681 100644
--- a/port/js/benchmarks/fromEntries.benchmark.js
+++ b/port/js/benchmarks/fromEntries.benchmark.js
@@ -19,7 +19,18 @@ let srcStruct = new Struct({
     { name: 'type_Uint64', type: 'Uint64' },
     { name: 'type_String', type: 'String' },
     { name: 'type_Double', type: 'Double' },
-    { name: 'type_Char', type: 'Char' }
+    { name: 'type_Char', type: 'Char' },
+    { name: '_type_Int8', type: 'Int8' },
+    { name: '_type_Uint8', type: 'Uint8' },
+    { name: '_type_Int16', type: 'Int16' },
+    { name: '_type_Uint16', type: 'Uint16' },
+    { name: '_type_Int32', type: 'Int32' },
+    { name: '_type_Uint32', type: 'Uint32' },
+    { name: '_type_Int64', type: 'Int64' },
+    { name: '_type_Uint64', type: 'Uint64' },
+    { name: '_type_String', type: 'String' },
+    { name: '_type_Double', type: 'Double' },
+    { name: '_type_Char', type: 'Char' }
   ]
 });
 
@@ -34,14 +45,25 @@ let srcData = {
   type_Uint64: BigInt(8),
   type_String: 'This is test string',
   type_Double: -Math.PI,
-  type_Char: 'A'
+  type_Char: 'A',
+  _type_Int8: 8,
+  _type_Uint8: 8,
+  _type_Int16: 8,
+  _type_Uint16: 8,
+  _type_Int32: 8,
+  _type_Uint32: 8,
+  _type_Int64: BigInt(8),
+  _type_Uint64: BigInt(8),
+  _type_String: 'This is test string',
+  _type_Double: -Math.PI,
+  _type_Char: 'A'
 };
 srcData.__SIZE__ = Buffer.calcSize(Buffer.createValueArray(srcStruct.fields, srcData));
 let b = Buffer.serializeObj(srcStruct.schema.fields, srcData);
 
 
 
-describe('Object.fromEntries vs mutation Object ', () => {
+describe('Buffer(b).deserialize ', () => {
 
   beforeEach(() => {
     srcData = {