Page Render Time in MVC

Question

Q: How do I calculate the total time it takes to render an MVC page and display the time on the master page.

In Asp.net Web Form I created a Base page class like so:

Answer 1

I would probably override the OnActionExecuting and OnActionExecuted methods on the Controller class.

public class BaseController : Controller {
    // Called before the action is executed
    public override void OnActionExecuting(ActionExecutingContext ctx) {
        base.OnActionExecuting(ctx);
        // Start timing
    }

    // Called after the action is executed
    public override void OnActionExecuted(ActionExecutedContext ctx) {
        base.OnActionExecuted(ctx);
        // Stop timing
    }
}