Page Render Time In ASP.MVC In Trace

I want to check render time of each page in asp.net mvc application.

i am using asp.net tracing. i have override the OnActionExecuting and OnActionExecuted methods on the BaseController class.

protected override void OnActionExecuting(ActionExecutingContext filterContext)
{
string controler = filterContext.RouteData.Values["controller"].ToString();
string action = filterContext.RouteData.Values["action"].ToString();
StartTime =System.DateTime.Now;
System.Diagnostics.Trace.Write(string.Format("Start '{0}/{1}' on: {2}", controler, action, System.DateTime.Now.UtilToISOFormat()));
}
protected override void OnActionExecuted(ActionExecutedContext filterContext)
{
string controler = filterContext.RouteData.Values["controller"].ToString();
string action = filterContext.RouteData.Values["action"].ToString();
var totalTime = System.DateTime.Now - this.StartTime;
System.Diagnostics.Trace.Write(totalTime.ToString());
System.Diagnostics.Trace.Write(string.Format("End '{0}/{1}' on: {2}", controler, action, System.DateTime.Now.UtilToISOFormat()));
}

in OnActionExecuted method i get total time. how can i show this time in my http://localhost:51335/Trace.axd report?

Even i had set Trace="true" in <%@ Page %> on every page also.