Unity 性能分析小工具

　　下文有两个方法，分别是一段检测执行过程耗费时间的代码，还有一个是保存和加载Unity Profiler 的代码（因为UnityProfiler 只能显示一部分的数据，如果运行时间长的话有部分分析数据查看不到）

　　1. 检测执行耗费时间代码如下：

using System;

using System.Collections;

using System.Collections.Generic;

using System.Diagnostics;

using UnityEngine;

public class CustomTimer : IDisposable

{

    private string m_timerName;

    private int m_numTests;

    private Stopwatch m_watch;

    public CustomTimer(string timerName,int numTests)

    {

        m_timerName = timerName;

        m_numTests = numTests;

        if (m_numTests <= 0)

            m_numTests = 1;

        m_watch = Stopwatch.StartNew();

    }

    public void Dispose()

    {

        m_watch.Stop();

        float ms = m_watch.ElapsedMilliseconds;

        UnityEngine.Debug.Log(string.Format("{0}  finished: {1:0.00}ms total , {2:0.00000}ms per test for {3} tests", m_timerName, ms, ms / m_numTests, m_numTests));

    }

}

使用方法如下：在程序块里放入自己要检测的代码，在循环使用的时候，把0改成循环的次数就可以了

using (new CustomTimer("My Test", 0))

        {

            using (UnityWebRequest request = UnityWebRequestAssetBundle.GetAssetBundle(url))

            {

                yield return request.SendWebRequest();

                if (request.isHttpError || request.isNetworkError)

                {

                    // 下载出错

                    print(request.error);

                }

                else

                {

                    // 下载完成

                    AssetBundle assetBundle = (request.downloadHandler as DownloadHandlerAssetBundle).assetBundle;

                    GameObject obj = assetBundle.LoadAsset<GameObject>(assetBundle.GetAllAssetNames()[0]);

                    GameObject obj2 = GameObject.Instantiate(obj);

                    this.obj = obj2.transform;

                    // 优先释放request 会降低内存峰值

                    request.Dispose();

                }

            }

        }

2. Unity Profiler 保存方法：

using System.Collections;

using System.Collections.Generic;

using UnityEngine;

using UnityEngine.Profiling;

public class ProfilerDataSaverComponent : MonoBehaviour

{

    int _count = 0;

    void Start()

    {

        Profiler.logFile = "";

    }

    // Update is called once per frame

    void Update()

    {

        if(Input.GetKey(KeyCode.LeftControl)&& Input.GetKeyDown(KeyCode.H))

        {

            StartCoroutine(SaveProfilerData());

        }

    }

    IEnumerator SaveProfilerData()

    {

        while(true)

        {

            string filepath = Application.persistentDataPath + "/profilerLog" + _count;

            Profiler.logFile = filepath;

            Profiler.enableBinaryLog = true;

            Profiler.enabled = true;

            for (int i = 0; i < 300; i++)

            {

                yield return new WaitForEndOfFrame();

                if(!Profiler.enabled)

                {

                    Profiler.enabled = true;

                }

            }

            _count++;

        }

    }

}

　　读取保存的UnityProfiler数据：在Window/ProfilerDataLoader 内

using System.Collections;

using System.Collections.Generic;

using System.IO;

using System.Text.RegularExpressions;

using UnityEditor;

using UnityEngine;

using UnityEngine.Profiling;

public class ProfilerDataLoaderWindow : EditorWindow

{

    static List<string> s_cachedFilePaths;

    static int s_chosenIndex = -1;

    [MenuItem("Window/ProfilerDataLoader")]

    static void Init()

    {

        ProfilerDataLoaderWindow window = (ProfilerDataLoaderWindow)EditorWindow.GetWindow(typeof(ProfilerDataLoaderWindow));

    }

    static void ReadProfilerDataFiles()

    {

        Profiler.logFile = "";

        string[] filePath = Directory.GetFiles(Application.persistentDataPath , "ProfilerLog*");

        s_cachedFilePaths = new List<string>();

        Regex test = new Regex(".data$");

        for (int i = 0; i < filePath.Length; i++)

        {

            string thisPath = filePath[i];

            Match match = test.Match(thisPath);

            if(!match.Success)

            {

                Debug.Log("Found file: " + thisPath);

                s_cachedFilePaths.Add(thisPath);

            }

        }

        s_chosenIndex = -1;

    }

    private void OnGUI()

    {

        if(GUILayout.Button("Find Files"))

        {

            ReadProfilerDataFiles();

        }

        if (s_cachedFilePaths == null)

            return;

        EditorGUILayout.Space();

        EditorGUILayout.LabelField("Files");

        EditorGUILayout.BeginHorizontal();

        GUIStyle defaultStyle = new GUIStyle(GUI.skin.button);

        defaultStyle.fixedWidth = 40;

        GUIStyle highlightedStyle = new GUIStyle(defaultStyle);

        highlightedStyle.normal.textColor = Color.red;

        for (int i = 0; i < s_cachedFilePaths.Count; i++)

        {

            if(i%5==0)

            {

                EditorGUILayout.EndHorizontal();

                EditorGUILayout.BeginHorizontal();

            }

            GUIStyle thisStyle = null;

            if(s_chosenIndex ==i)

            {

                thisStyle = highlightedStyle;

            }

            else

            {

                thisStyle = defaultStyle;

            }

            if (GUILayout.Button("" + i, thisStyle))

            {

                Profiler.AddFramesFromFile(s_cachedFilePaths[i]);

                s_chosenIndex = i;

            }

        }

        EditorGUILayout.EndHorizontal();

    }

}

巴特西

Unity 性能分析小工具

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