TestUnityCacheComponentPerformance.cs

using UnityEngine;
using System.Collections;
using System.Diagnostics;
using Debug = UnityEngine.Debug;

public class TestCacheComponentPerformance : MonoBehaviour
{
	/// Will use for Loop test in Update
	[SerializeField] int runCount = 100000;
	/// Use for Editor testing, change the runCount, and press this bool
	/// in Inspector to run the test again
	[SerializeField] bool test = false;

	void Update ()
	{
		if (test)
		{
			RunTest();
			test = false;
		}
	}


	void RunTest()
	{
		Stopwatch watch = new Stopwatch();
		var cacheTransform = transform;

		// test direct transform
		watch.Start();
		for (int m = 0; m < runCount; m++)
		{
			transform.position = Vector3.zero;
		}
		watch.Stop();
		Debug.Log("Direct call : " + watch.ElapsedMilliseconds);
		watch.Reset();


		// test getcomponent
		watch.Start();
		for (int m = 0; m < runCount; m++)
		{
			GetComponent<Transform>().position = Vector3.zero;
		}
		watch.Stop();
		Debug.Log("GetComponent call : " + watch.ElapsedMilliseconds);
		watch.Reset();

		// test cache
		watch.Start();
		for (int m = 0; m < runCount; m++)
		{
			cacheTransform.position = Vector3.zero;
		}
		watch.Stop();
		Debug.Log("Cached call : " + watch.ElapsedMilliseconds);
		watch.Reset();
	}
}