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POASP.NET MVC 2 to MVC 4 converted project runs slower
 

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  1. POASP.NET MVC 2 to MVC 4 converted project runs slower
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    <p>Recently we have converted the ASP.NET MVC 2 project to ASP.NET MVC 4.</p> <p>In MVC2 we had used LINQ to SQL. In MVC4 we are using Entity Framework. When comparing the loading speed MVC4 runs slower than MVC2. </p> <p>I have compared a basic page that just pulls the list of Contacts and both are having the same functionality and flow (Controller -> BLL -> Repository(DAL)). But MVC4 loads slower than MVC2.</p> <p><img src="https://i.stack.imgur.com/0DzXA.png" alt="Firebug of MVC2"> Above is screenshot of firebug from MVC2 application</p> <p><img src="https://i.stack.imgur.com/VIoNR.png" alt="Firebug of MVC4"> Above is screenshot of firebug from MVC4 application</p> <p>Both are the same functionality, but it differs in the time they load.</p> <p>How to find the loading issue in my MVC4? Is there any tool that points out any issues/leakage? Please suggest.</p> <p><strong>Update:</strong></p> <p>When i checked the loading speed by commenting the call to Database and still had the same issue. When i comment the Dependency Injection, it runs normal. When i use the Controller without any Interfaces like below, it loads faster: </p> <pre><code>public class UserController : BaseController { public UserController() { } } </code></pre> <p>But When i use the Interfaces(Dependency Injection) as below, it takes longer time:</p> <pre><code>public class UserController : BaseController { private IUserService _userService; private IPaymentService _paymentService; private ICommonService _commonService; private IAdminService _adminService; private IAUserService _adminUserService; public UserController() { } public UserController(IUserService userService, IPaymentService paymentService, ICommonService commonService, IAdminService adminService, IAUserService adminUserService) { this._userService = userService; this._paymentService = paymentService; this._commonService = commonService; this._adminService = adminService; this._adminUserService = adminUserService; } } </code></pre> <p>I have posted a thread at <a href="http://forums.asp.net/p/1785359/4899828.aspx/1?RE%20Performance%20issue%20after%20upgrading%20MVC2%20from%20L2S%20to%20EF" rel="nofollow noreferrer">ASP.NET forum</a>, which gave me the idea to check by removing the Dependency Injection.</p> <p>Also in Scott Gu's <a href="http://weblogs.asp.net/scottgu/archive/2012/02/19/asp-net-mvc-4-beta.aspx" rel="nofollow noreferrer">blog post</a>, but no positive response so far.</p> <p>Its something fishy with the Dependency Injection, any ideas?</p>
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