I am wondering what the difference in preformance would be between these 2 methods

<%@ Page Language="C#" AutoEventWireup="False" Src="default.aspx.cs" Inherits="CMS.Default"%>

as apposed to compiling a dll and using

<%@ Page Language="C#" AutoEventWireup="False" CodeBehind="default.aspx.cs" Inherits="CMS.Default"%>

I am doing this without visual studio so compiling can be a pain. Is there a big difference in performance?