Question

During debug builds I would like to show the duration it took, server side, to generate a page in the pages footer.

So for example if a page takes 250ms server side I would like that displayed in the footer, in debug builds. How can I achieve this in an ASP.NET MVC project?

Answer 1

Add this to the footer in your master page:

Page rendering took <%= DateTime.Now.Subtract( this.ViewContext.HttpContext.Timestamp ).TotalMilliseconds.ToString() %>

You can also wrap this in an extension method:

public static class Extensions
{
  public static string RequestDurationinMs( this HtmlHelper helper )
  {
    #if DEBUG
    return DateTime.Now.Subtract( helper.ViewContext.HttpContext.Timestamp ).TotalMilliseconds.ToString();
    #endif
  }
}

Use that like this:

<%= Html.RequestDurationinMs() %>

You may need to import the namespace of the extensions class:
<%@ Import Namespace="Your.Namespace" %>