XNA 4.0 FPS Counter

    public class FrameRateCounter : DrawableGameComponent
    {
        ContentManager content;
        SpriteBatch spriteBatch;
        SpriteFont spriteFont;

        int frameRate = 0;
        int frameCounter = 0;
        TimeSpan elapsedTime = TimeSpan.Zero;

        public bool show = true;


        public FrameRateCounter(Game game, ContentManager setContent)
            : base(game)
        {
            content = setContent;
        }


        protected override void LoadContent()
        {
                spriteBatch = new SpriteBatch(GraphicsDevice);
                spriteFont = content.Load<SpriteFont>("fpsFont");
        }


        protected override void UnloadContent()
        {
                content.Unload();
        }


        public override void Update(GameTime gameTime)
        {
            elapsedTime += gameTime.ElapsedGameTime;

            if (elapsedTime > TimeSpan.FromSeconds(1))
            {
                elapsedTime -= TimeSpan.FromSeconds(1);
                frameRate = frameCounter;
                frameCounter = 0;
            }
        }


        public override void Draw(GameTime gameTime)
        {
            frameCounter++;
            if (!show) return;

            string fps = string.Format("{0}", frameRate);

            spriteBatch.Begin();

            spriteBatch.DrawString(spriteFont, fps, new Vector2(3, 3), Color.Black);
            spriteBatch.DrawString(spriteFont, fps, new Vector2(2, 2), Color.White);

            spriteBatch.End();
        }
    }