Unityで実行時間を計測する

3msと出力される

using UnityEngine;
using System.Diagnostics;

public class Test : MonoBehaviour {

    // Use this for initialization
    void Start () {
        Stopwatch sw = new Stopwatch ();
        sw.Start ();
        // 3秒待つ.
        System.Threading.Thread.Sleep (3);
        sw.Stop ();
        UnityEngine.Debug.Log (sw.ElapsedMilliseconds+"ms");
    }
}