简单对比了一下MonoXml与SystemXml在Unity下的表现

测试代码

public class NewBehaviourScript : MonoBehaviour {

    // Use this for initialization
    void Start () {
        
    }

    static void TestXmlLoad(string xml)
    {
        SecurityParser parser = new SecurityParser();
        parser.LoadXml(xml);
    }

    static void TestSystemXMLLoad(string xml)
    {
        XmlDocument doc = new XmlDocument();
        doc.LoadXml(xml);
    }

    int count = 0;

    // Update is called once per frame
    void Update () {
        if(++count == 200)
        {
            string xmlText = File.ReadAllText(@"F:\Projects\TestPXML\TestPXML\test.xml");

            int LoadCount = 5;

            Stopwatch stopwatch = new Stopwatch();
            {
                stopwatch.Start();

                for (int i = 0; i < LoadCount; ++i)
                {
                    TestXmlLoad(xmlText);
                }

                UnityEngine.Debug.Log(string.Format("MonoXml Load:{0}", stopwatch.Elapsed));
            }

            {
                stopwatch.Stop();
                stopwatch.Start();

                for (int i = 0; i < LoadCount; ++i)
                {
                    TestSystemXMLLoad(xmlText);
                }

                UnityEngine.Debug.Log(string.Format("SystemXml Load:{0}", stopwatch.Elapsed));
            }
        }
    }
}

测试用xml400kb左右。

时间:

 

看起来MonoXml会快一点,大约少1/3左右的时间开销。

内存:

 

 

开了DeepProfile。看起来Systemxml需要更少的内存,不开DeepProfile测不到内存,这就尴尬了。

另外在非Unity环境下测试了一下,使用代码如下:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Xml;
using Mono.Xml;
using System.Diagnostics;

namespace TestPXML
{
    class Program
    {
        private static List<object> Caches = new List<object>();

        static void Main(string[] args)
        {
      //      Console.WriteLine("prepare load from monoxml");
       //     Console.ReadKey();

            string xmlText = Encoding.UTF8.GetString(Properties.Resources.SettlementForm);

            int LoadCount = 100;

            GC.Collect();
            GC.Collect();

            Stopwatch stopwatch = new Stopwatch();
//             {
//                 stopwatch.Start();
// 
//                 for(int i=0; i<LoadCount; ++i)
//                 {
//                     TestXmlLoad(xmlText);
//                 }
// 
//                 Console.WriteLine($"MonoXml Load:{stopwatch.Elapsed}");
//             }

            Console.WriteLine("prepare load from system.xml");
            Console.ReadKey();
            {
                stopwatch.Stop();
                stopwatch.Start();

                for (int i = 0; i < LoadCount; ++i)
                {
                    TestSystemXMLLoad(xmlText);
                }

                Console.WriteLine($"SystemXML Load:{stopwatch.Elapsed}");
            }

            GC.Collect();
            GC.Collect();

            Console.WriteLine("all done, press any key.");
            Console.ReadKey();
        }

        static void TestXmlLoad(string xml)
        {
            SecurityParser parser = new SecurityParser();
            parser.LoadXml(xml);

            Caches.Add(parser);
        }

        static void TestSystemXMLLoad(string xml)
        {
            XmlDocument doc = new XmlDocument();
            doc.LoadXml(xml);

            Caches.Add(doc);
        }
    }
}

   为了避免误差,cache之类的,使用工具分两个波次测试。

SystemXML结论如下:

 

 

 

 

 

 

MonoXML结论如下:

 

 

   因此基本可以证明,MonoXml加载速度比SystemXml快,但是需要的内存开销会高于System.xml

 

posted @ 2020-08-20 15:05  bodong  阅读(241)  评论(0编辑  收藏  举报