diff --git a/lualib-src/lua-socket.c b/lualib-src/lua-socket.c
index c99d85d3..df81ce17 100644
--- a/lualib-src/lua-socket.c
+++ b/lualib-src/lua-socket.c
@@ -82,6 +82,15 @@ lnewbuffer(lua_State *L) {
 	int size
 
 	return size
+
+	Comment: The table pool record all the buffers chunk, 
+	and the first index [1] is a lightuserdata : free_node. We can always use this pointer for struct buffer_node .
+	The following ([2] ...)  userdatas in table pool is the buffer chunk (for struct buffer_node), 
+	we never free them until the VM closed. The size of first chunk ([2]) is 8 struct buffer_node,
+	and the second size is 16 ... The largest size of chunk is LARGE_PAGE_NODE (4096)
+
+	lpushbbuffer will get a free struct buffer_node from table pool, and then put the msg/size in it.
+	lpopbuffer return the struct buffer_node back to table pool (By calling return_free_node).
  */
 static int
 lpushbuffer(lua_State *L) {