Static profiler class for timing different intervals across a Xamarin.Forms app

Profiler.cs

using System;
using System.Collections.Concurrent;
using System.Diagnostics;

namespace xfperf
{
	public static class Profiler
	{
		static readonly ConcurrentDictionary<string, Stopwatch> watches = new ConcurrentDictionary<string, Stopwatch>();

		public static void Start(object view)
		{
			Start(view.GetType().Name);
		}

		public static void Start(string tag)
		{
			Console.WriteLine("Starting Stopwatch {0}", tag);

			var watch =
				watches[tag] = new Stopwatch();
			watch.Start();
		}

		public static void Stop(string tag)
		{
			Stopwatch watch;
			if (watches.TryGetValue(tag, out watch))
			{
				Console.WriteLine("Stopwatch {0} took {1}", tag, watch.Elapsed);
			}
		}
	}
}