TestsWithDr.cs

using UnityEngine;
using System.Collections;
using NG.Diagnostics;
public class TestsWithDr : MonoBehaviour
{
    public int iterations = 1000000;
    private DiagnosticRecorder dr = new DiagnosticRecorder();

    void Start()
    {
        StartCoroutine(TestRoutine());
    }

    IEnumerator TestRoutine()
    {
        // Switch between the two tests
        // and do a WaitforEndOFrame so as to not lock up Unity for too long.
        for (int i = 0; i < 10; i++)
        {
            if (i % 2 == 0)
                TestMagnitude();
            else
                TestGetComponent();

            yield return new WaitForEndOfFrame();
        }

        // Call our results.
        Debug.Log(dr.ToString());
    }


    void TestMagnitude()
    {
        // fill up an array of vectors to test on
        Vector3[] testVectors = new Vector3[iterations];
        for (int i = 0; i < iterations; i++)
        {
            testVectors[i] =
                new Vector3(
                    Random.Range(-100, 100),
                    Random.Range(-100, 100),
                    Random.Range(-100, 100));
        }

        // Set up our value outside of the for loop just in case there's any
        // performance hit from declaring it inside the loop.
        float value;

        // Test sqrMagnitude on our test vectors
        dr.StartTimer("Square Magnitude");
        for (int i = 0; i < iterations; i++)
        {
            value = testVectors[i].sqrMagnitude;
        }
        dr.StopTimer("Square Magnitude");

        // Test magnitude on our test vectors
        dr.StartTimer("Test Magnitude");
        for (int i = 0; i < iterations; i++)
        {
            value = testVectors[i].magnitude;
        }
        dr.StopTimer("Test Magnitude");
    }

    void TestGetComponent()
    {
        dr.StartTimer("GetComponent repeat");
        for (int i = 0; i < iterations; i++)
        {
            Camera.main.GetComponent<AudioListener>().enabled = true;
        }
        dr.StopTimer("GetComponent repeat");

        dr.StartTimer("GetComponent once");
        AudioListener al = null;
        for (int i = 0; i < iterations; i++)
        {
            if (i == 0)
                al = Camera.main.GetComponent<AudioListener>();

            al.enabled = true;
        }
        dr.StopTimer("GetComponent once");
    }

}