How can I calculate the time it's taking to do something inside a method?

Question

public void SaveTest()
    {
        savingText.GetComponent<Text>().text = "Saving !";
        Save();
        savingTextLogInfo.GetComponent<Text>().text = "";
    }

I want somehow to start a timer or something before calling the Save() method and after the Save() method to assign the time it took into the savingTextLogInfo text.

and I'm calling the SaveTest in some places in the game so in each time I want it first to reset the result of time and then to calculate again the time it's taking to make the Save method.

What other logging info can I assign to the savingTextLogInfo text ? I want to try to find out why only in the build when it's saving the game freeze for a millisecond or even to a second sometimes. I don't have any errors or problems in the editor but in the build the game is freezing for a short time when saving.

This is the Save method :

public void Save()
    {
        SaveGame saveGame = new SaveGame();
        saveGame.saveObjects = new List<SaveObject>();
        for (int i = 0; i < objectsToSave.Count; i++)
        {
            SaveObject saveObject = new SaveObject();
            saveObject.transformSaver = new TransformSaver();
            Debug.Log($"{i}");
            Debug.Log($"{objectsToSave[i].name}");
            saveObject.gameObjectUniqueID = objectsToSave[i].GetComponent<GenerateGuid>().uniqueGuidID;
            var x = objectsToSave[i].GetComponents<Component>();
            var stateQueryComponent = x.Where(component => component is IStateQuery).ToList();
            List<KeyToValue> componentsState = new List<KeyToValue>();
            foreach (var z in stateQueryComponent)
            {
                var w = z as IStateQuery;
                componentsState.Add(new KeyToValue(w.UniqueId.ToString(), w.GetState()));
            }

            saveObject.transformSaver.position = objectsToSave[i].transform.position;
            saveObject.transformSaver.rotation = objectsToSave[i].transform.rotation;
            saveObject.transformSaver.scaling = objectsToSave[i].transform.localScale;

            saveObject.componentsState = componentsState;
            saveGame.saveObjects.Add(saveObject);
        }

        string json = JsonUtility.ToJson(saveGame);
        SaveSystem.Save(json);
    }

And the SaveSystem :

using System;
using System.Collections;
using System.Collections.Generic;
using System.IO;
using UnityEngine;

public static class SaveSystem
{
    private static readonly string SAVE_FOLDER = Application.dataPath + "/save_";
    public static void Init()
    {
        if (!Directory.Exists(SAVE_FOLDER))
        {
            Directory.CreateDirectory(SAVE_FOLDER);
        }
    }

    public static void Save(string saveString)
    {
        string fileName = Path.Combine(SAVE_FOLDER, "savegame.txt");
        File.WriteAllText(fileName, saveString);

    }

    public static string Load()
    {
        string fileName = Path.Combine(SAVE_FOLDER, "savegame.txt");
        string content = File.ReadAllText(fileName);

        return content;
    }
}

Answer 1

你想用 Stopwatch

var stopwatch = new Stopwatch();

stopwatch.Start();
// do some processing here

stopwatch.Stop();

Console.WriteLine($"Total time {stopwatch.ElapsedMilliseconds} ms");

您可以使用 重置秒表stopwatch.Reset()。

如果您希望进行更强大的基准测试，我会查看https://github.com/dotnet/BenchmarkDotNet 该工具可以针对不同的 NET 目标运行您的代码，并且更加灵活和可配置。