Unity3d prefab-benchmarking component

Unity3d.PrefabBenchmarker

using System.Collections;
using UnityEngine;

namespace Assets.Tools
{
    public class PrefabBenchmarker : MonoBehaviour
    {
        public GameObject PrefabUnderTest;
        public int InstancesToCreate = 1000;
        public int FramesToTest = 100;
        public int FramesDelayBeforeStarting = 5;

        private float _startTime;
        private float _instantiatePlusOneTime;
        private float _endTime;

        private Transform _parent;

        private void Start()
        {
            _parent = new GameObject("TestObjects").transform;
            StartCoroutine(RunTest());
        }

        private IEnumerator RunTest()
        {
            // delay starting so that there's no other startup interfering
            for (int i = 0; i < FramesDelayBeforeStarting; i++)
            {
                yield return new WaitForEndOfFrame();
            }

            // create the prefab instances to test
            _startTime = Time.time;
            CreateTestObjects();

            // wait to allow .Start() to run on all components
            yield return new WaitForEndOfFrame();
            _instantiatePlusOneTime = Time.time;

            // wait a number of frames for the actual benchmark
            for (int i = 0; i < FramesToTest; i++)
            {
                yield return new WaitForEndOfFrame();
            }

            _endTime = Time.time;

            // destroy the test objects in case the .Update() calls cripple the editor
            GameObject.DestroyImmediate(_parent.gameObject);

            LogResults();
        }

        private void CreateTestObjects()
        {
            for (int i = 0; i < InstancesToCreate; i++)
            {
                GameObject testObject = (GameObject)GameObject.Instantiate(PrefabUnderTest);
                testObject.transform.parent = _parent;
            }
        }

        private void LogResults()
        {
            var initTime = _instantiatePlusOneTime - _startTime;
            var runTime = _endTime - _instantiatePlusOneTime;
            var fps = FramesToTest / runTime;
            Debug.Log(string.Format("PERFTEST: initialise {0}s; run {1}s ({2} FPS).", initTime, runTime, fps));
        }
    }
}