A tool for comparing the performance of different code in C#. Just call PerfTest.Run();

CSharpPerformanceTester

using System;
using System.Collections.Generic;
using System.Diagnostics;

public class Thing
{
	public float a;
	public float b;
	public float c;
	
	
	private float _x;
	private float _y;
	private float _z;
	
	public float x
	{
		get { return _x;}
		set {_x = value;}
	}
	
	public float y
	{
		get { return _y;}
		set {_y = value;}
	}
	
	public float z
	{
		get { return _z;}
		set {_z = value;}
	}
	
	public Thing()
	{

	}
	
	public void Set(float x, float y, float z)
	{
		_x = x;
		_y = y;
		_z = z;
	}
}

public class PerfTest
{
	static public int runIterations = 10;
	static public int testIterations = 5000;
	static public int loopIterations = 1000;

	static public List<Thing> things;

	static public Stopwatch watch = new Stopwatch();

	static public void Run()
	{
		float efficiency = 0;
		for(int a = 0; a<runIterations; a++)
		{
			efficiency += ActuallyRun(a);
		}

		efficiency /= runIterations;

		
		
		if(Math.Round (efficiency*33.0) == 33.0) //within 3 percent
		{
			UnityEngine.Debug.Log("All tests complete, they're equal!");
		}
		else if(efficiency < 1.0)
		{
			int percent = (int) Math.Round(1.0/efficiency * 100.0) - 100;
			UnityEngine.Debug.Log("All tests complete, A is "+percent+"% faster!");
		}
		else 
		{
			int percent = (int) Math.Round(efficiency * 100.0) - 100;
			UnityEngine.Debug.Log("All tests complete, B is "+percent+"% faster!");
		}
	}

	static private float ActuallyRun(int testIndex)
	{
		long timeA = 0;
		long timeB = 0;

		things = new List<Thing>(loopIterations);

		for(int i = 0; i<loopIterations; i++)
		{
			things.Add(new Thing()); 
		}

		for(int t = 0; t<testIterations; t++)
		{
			timeA += DoTestA();
			timeB += DoTestB();
		}

		//reverse order
		for(int t = 0; t<testIterations; t++)
		{
			timeB += DoTestB();
			timeA += DoTestA();
		}

		float delta = (float)timeA/(float)timeB;
		
		UnityEngine.Debug.Log("Test " + testIndex + " A:" + timeA + "   B:" + timeB + " efficiency: " + delta);
		
		return delta;
	}

	public static long DoTestA ()
	{
		watch.Reset();
		watch.Start();

		int count = things.Count;

		for(int i = 0; i<count; i++)
		{
			Thing thing = things[i];
			
			thing.a = thing.a * 10.0f;
		}

		return watch.ElapsedTicks;
	}

	public static long DoTestB ()
	{
		watch.Reset();
		watch.Start();

		int count = things.Count;

		for(int i = 0; i<count; i++)
		{
			Thing thing = things[i];
			
			thing.a *= 10.0f;
		}

		return watch.ElapsedTicks;
	}
}