大佬教程收集整理的这篇文章主要介绍了JSON.NET VS BinaryFormatter 性能，大佬教程大佬觉得挺不错的，现在分享给大家，也给大家做个参考。
近期有个性能调优工作。通过dottrace 分析，发现几处问题，其中json.net 在序列化和反序列化的时候也比较耗性能，所以考虑能不能通过其它序列化方式来提高性能。
public class ObjectConvert { /// <sumMary> /// 将一个object对象序列化，返回一个byte[] /// </sumMary> /// <param name="obj">能序列化的对象</param> /// <returns></returns> public static byte[] ObjectToBytes(object obj) { using (MemoryStream ms = new MemoryStream()) { IFormatter formatter = new BinaryFormatter(); formatter.serialize(ms,obj); return ms.GetBuffer(); } } /// <sumMary> /// 将一个序列化后的byte[]数组还原 /// </sumMary> /// <param name="Bytes"></param> /// <returns></returns> public static object BytesToObject(byte[] Bytes) { using (MemoryStream ms = new MemoryStream(Bytes)) { IFormatter formatter = new BinaryFormatter(); return formatter.Deserialize(ms); } } }
2 Test 方法，用了 老赵写的codetimer
[TESTClass] public class serializeTestor { private List<UserInfo> InitData(int count) { UserInfo user = null; List<UserInfo> users = new List<UserInfo>(); for (int i = 0; i < count; i++) { user = new UserInfo(); user.Age = new Random().Next(10,100); user.Name = "yuan"; user.CreateTime = datetiR_907_11845@e.Now; users.Add(user); } return users; } private List<UserInfo> InitBigStringData(int count) { UserInfo user = null; List<UserInfo> users = new List<UserInfo>(); for (int i = 0; i < count; i++) { user = new UserInfo(); user.Age = new Random().Next(10,100); //user.Name = "yuan"; user.Name = "yudddddddddddddddddddddddddddyudddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddanyudddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddanyudddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddanyudddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddanddddddddddddddddddddddddddddddddddddddddddddddddddan"; user.CreateTime = datetiR_907_11845@e.Now; users.Add(user); } return users; } [TestMethod] public void serialize_十万次_test() { var users = InitData(100000); // object序列化 CodeTimer.Time("object序列化",1,() => { var temps = ObjectConvert.objectToBytes(users); }); // newtonsoft.json CodeTimer.Time("json.net序列化",() => { var temps = JsonConvert.serializeObject(users); }); } [TestMethod] public void serialize_百万次_test() { var users = InitData(1000000); // object序列化 CodeTimer.Time("object序列化",() => { var temps = JsonConvert.serializeObject(users); }); } [TestMethod] public void serializeBigString_十万次_test() { var users = InitBigStringData(100000); // object序列化 CodeTimer.Time("object序列化",() => { var temps = JsonConvert.serializeObject(users); }); } [TestMethod] public void serializeBigString_百万次_test() { var users = InitBigStringData(1000000); // object序列化 CodeTimer.Time("object序列化",() => { var temps = JsonConvert.serializeObject(users); }); } }
3 测试结果：
serialize_十万次_Test： object序列化 Time Elapsed: 188ms Time Elapsed (one timE):188ms cpu time: 187,500,000ns cpu time (one timE): 187,000ns Gen 0: 1 Gen 1: 0 Gen 2: 0 json.net序列化 Time Elapsed: 138ms Time Elapsed (one timE):138ms cpu time: 140,625,000ns cpu time (one timE): 140,000ns Gen 0: 3 Gen 1: 1 Gen 2: 0 ================================================ serialize_百万次_Test object序列化 Time Elapsed: 2,073ms Time Elapsed (one timE):2,073ms cpu time: 2,078,125,000ns cpu time (one timE): 2,000ns Gen 0: 23 Gen 1: 1 Gen 2: 0 json.net序列化 Time Elapsed: 1,449ms Time Elapsed (one timE):1,449ms cpu time: 1,437,000ns cpu time (one timE): 1,000ns Gen 0: 28 Gen 1: 27 Gen 2: 0 =================================================== serializeBigString_十万次_Test object序列化 Time Elapsed: 187ms Time Elapsed (one timE):187ms cpu time: 187,000ns Gen 0: 3 Gen 1: 2 Gen 2: 2 json.net序列化 Time Elapsed: 339ms Time Elapsed (one timE):339ms cpu time: 328,000ns cpu time (one timE): 328,000ns Gen 0: 19 Gen 1: 14 Gen 2: 3 ====================================================== serializeBigString_百万次_Test object序列化 Time Elapsed: 2,099ms Time Elapsed (one timE):2,099ms cpu time: 2,046,875,000ns Gen 0: 26 Gen 1: 25 Gen 2: 3 json.net序列化 System.outOfMemoryException: 引发类型为“System.outOfMemoryException”的异常。
4 结论：
JSON.NET 在小对象处理时，性能比BinaryFormatter好
JSON.NET 比BinaryFormatter 耗内存
JSON.NET GC中带回收的对象会比较影响整体性能
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