.Net 内存缓存项目 SharpCached源码

补充：2008年7月30日12:50:15

 测试代码：

 

Code
using System;
using System.Data;
using SharpClient;
using System.Diagnostics;

namespace YesHJ.Search.Service
{
    public partial class Debug : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            SharpClient.SharpCachedAPI api = new SharpClient.SharpCachedAPI();
            if (api.IsError)
            {
                Response.Write("Error");
                Response.End();
            }
            else
            {
                Response.Write("时钟支持高精度:" + Stopwatch.IsHighResolution.ToString() + "<br/>");
                Response.Write("时钟最小单位:" + Stopwatch.GetTimestamp().ToString() + "<br/>");
                Response.Write("每秒计时频率:" + Stopwatch.Frequency.ToString() + "<br/><br/><br/>");

                System.Diagnostics.Stopwatch watch = new System.Diagnostics.Stopwatch();
                watch.Start();
                int count = api.Count();
                watch.Stop();
                Response.Write("获取键值数运行时间：" + watch.ElapsedMilliseconds + "<br/>");
                Response.Write("keys count :" + count + "<br/><hr/>");

                watch = Stopwatch.StartNew();
                watch.Reset();
                watch.Start();
                double memory = api.Memory();
                watch.Stop();
                Response.Write("获取占用内存运行时间：" + watch.ElapsedMilliseconds + "<br/>");
                Response.Write("Memory :" + memory.ToString("f3") + "M<br/><hr/>");

                MyValueObject obj = new MyValueObject() ;
                obj.ID = 100;
                obj.Title = "1234567890123456789012345678901234567890123456789012345678901234567890";
                obj.Content = "123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890";
                watch = Stopwatch.StartNew();
                watch.Reset();
                watch.Start();
                api.Set("xp_mykey_MyValueObject", SharpClient.SharpCachedAPI.Serialize<MyValueObject>(obj));
                watch.Stop();
                Response.Write("写入自定义对象运行时间：" + watch.ElapsedMilliseconds + "<br/><hr/>");

                DataTable dt = new DataTable("CachedTable");
                dt.Columns.Add("ID");
                dt.Columns.Add("title");
                dt.Columns.Add("Content");
                for (int i = 0; i < 10; i++)
                {
                    DataRow dr = dt.NewRow();
                    dr["ID"] = i * 1000;
                    dr["title"] = "1234567890123456789012345678901234567890123456789012345678901234567890";
                    dr["Content"] = "123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890";
                    dt.Rows.Add(dr);
                }
                watch = Stopwatch.StartNew();
                watch.Reset();
                watch.Start();
                api.Set("xp_mykey_DataTable", SharpClient.SharpCachedAPI.Serialize<DataTable>(dt));
                watch.Stop();
                Response.Write("写入DataTable对象运行时间：" + watch.ElapsedMilliseconds + "<br/><hr/>");

                watch = Stopwatch.StartNew();
                watch.Reset();
                watch.Start();
                api.Set("xp_mykey_string", "123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890");
                watch.Stop();
                Response.Write("写入字符串运行时间：" + watch.ElapsedMilliseconds + "<br/><hr/>");

                watch = Stopwatch.StartNew();
                watch.Reset();
                watch.Start();
                api.Set("xp_mykey_string_short", "abcdefg");
                watch.Stop();
                Response.Write("写入短字符串运行时间：" + watch.ElapsedMilliseconds + "<br/><hr/>");

                bool isExist = false;
                watch = Stopwatch.StartNew();
                watch.Reset();
                watch.Start();
                isExist = api.Exist("xp_mykey_MyValueObject");
                if (isExist)
                {
                    MyValueObject getobj = SharpCachedAPI.Deserialize<MyValueObject>(api.Get("xp_mykey_MyValueObject"));
                }
                watch.Stop();
                Response.Write("读取自定义对象运行时间：" + watch.ElapsedMilliseconds + "\t存在:" + isExist.ToString() + "<br/><hr/>");

                watch = Stopwatch.StartNew();
                watch.Reset();
                watch.Start();
                isExist = api.Exist("xp_mykey_DataTable");
                if (isExist)
                {
                    DataTable getdt = SharpCachedAPI.Deserialize<DataTable>(api.Get("xp_mykey_DataTable"));
                }
                watch.Stop();
                Response.Write("读取DataTable运行时间：" + watch.ElapsedMilliseconds + "\t存在:" + isExist.ToString() + "<br/><hr/>");

                watch = Stopwatch.StartNew();
                watch.Reset();
                watch.Start();
                isExist = api.Exist("xp_mykey_string");
                if (isExist)
                {
                    string getstr = api.Get("xp_mykey_string");
                }
                watch.Stop();
                Response.Write("读取字符串运行时间：" + watch.ElapsedMilliseconds + "\t存在:" + isExist.ToString() + "<br/><hr/>");

                watch = Stopwatch.StartNew();
                watch.Reset();
                watch.Start();
                isExist = api.Exist("xp_mykey_string_short");
                if (isExist)
                {
                    string getstrshort = api.Get("xp_mykey_string_short");
                }
                watch.Stop();
                Response.Write("读取短字符串运行时间：" + watch.ElapsedMilliseconds + "\t存在:" + isExist.ToString() + "<br/><hr/>");

                watch = Stopwatch.StartNew();
                watch.Reset();
                watch.Start();
                isExist = api.Exist("xp_mykey_none");
                if (isExist)
                {
                    string getstrshort = api.Get("xp_mykey_none");
                }
                watch.Stop();
                Response.Write("读取不存在键值运行时间：" + watch.ElapsedMilliseconds + "\t存在:" + isExist.ToString() + "<br/><hr/>");

                watch = Stopwatch.StartNew();
                watch.Reset();
                watch.Start();
                isExist = api.Exist("xp_mykey_MyValueObject");
                if (isExist)
                    api.Remove("xp_mykey_MyValueObject");
                isExist = api.Exist("xp_mykey_DataTable");
                if (isExist)
                    api.Remove("xp_mykey_DataTable");
                isExist = api.Exist("xp_mykey_string");
                if (isExist)
                    api.Remove("xp_mykey_string");
                isExist = api.Exist("xp_mykey_string_short");
                if (isExist)
                    api.Remove("xp_mykey_string_short");
                isExist = api.Exist("xp_mykey_none");
                if (isExist)
                    api.Remove("xp_mykey_none");
                watch.Stop();
                Response.Write("移除上述键值运行时间：" + watch.ElapsedMilliseconds + "<br/><hr/>");
                Response.End();
            }
        }
    }
    [Serializable]
    public class MyValueObject
    {
        public int ID;
        public string Title;
        public string Content;
    }
}

 

 

测试结果：

时钟支持高精度:True
时钟最小单位:188778184698140
每秒计时频率:2327540000


获取键值数运行时间：0
keys count :49523

---

获取占用内存运行时间：0
Memory :241.000M

---

写入自定义对象运行时间：4

---

写入DataTable对象运行时间：4

---

写入字符串运行时间：3

---

写入短字符串运行时间：3

---

读取自定义对象运行时间：0 存在:True

---

读取DataTable运行时间：1 存在:True

---

读取字符串运行时间：0 存在:True

---

读取短字符串运行时间：0 存在:True

---

读取不存在键值运行时间：0 存在:False

---

移除上述键值运行时间：28

---

 

 

结果基本很稳定。测试平台：Window 2003  ,2.33G 8核CPU，4G内存。本机测试，没有放到局域网测试。

 

 

/*  SharpCached 是一个内存缓存工具
 *  by yurow @ http://birdshover.cnblogs.com
 *  2008-7-29 created

 */

 

 SharpCached V0.6

 

 

下载地址：https://files.cnblogs.com/birdshover/SharpCached.zip

 

有兴趣的朋友，可以和我一起研究，呵呵，不完善的地方期望大家能不吝指正。 本来想在CodePlex开个开源项目的，但是人太笨，用的SvnBridge一直传不上去，郁闷得不弄了，呵呵。

 

 SharpCached是完全用C#开发的，基于.Net Framework 2.0运行的内存缓存服务，Visual Studio 2008项目。

 

一、实现功能

实现IIS进程外缓存功能，通过Remoting调用。

实现了未命中或者近段时间内未命中结果过期。

实现了限制使用最大内存（程序检测出的和Windows任务管理器不一致，任务管理器中看到使用内存要多一些。）

 

二、使用服务

编译后文件清单

SharpCached.exe

ISharpCarrier.dll

SharpCached.exe.config

SharpCached.exe.config配置文件说明

<?xml version="1.0" encoding="utf-8" ?>
<configuration>

    <appSettings>

         <!-- 服务端口 -->

        <add key="Server_Port" value="8000"/>

         <!-- 最大使用内存，单位M-->

        <add key="Max_Memory" value="1024"/>

         <!-- 存取Key初始数值 -->

        <add key="Keys_InitCount" value="5000"/>

         <!-- 未命中过期-->

        <add key="TimeOut" value="10"/>

          <!-- 服务名-->

        <add key="Server_Name" value="SharpCached"/>
    </appSettings>

</configuration>

 

注册：sc create "SharpCached" type= interact type= own start= auto binPath= "%cd%"SharpCached.exe"

启动：net start "SharpCached"

三、调用方法

 

客户端配置文件：

如果是Windows应用程序，把

    <appSettings>

         <!-- 服务器地址 -->

        <add key="SharpServer" value="tcp://localhost:8000/SharpCached"/>

         <!-- 连接超时时间 -->

        <add key="TimeOut" value="1000"/>

    </appSettings>

代码加入app.setting中

如果是Web程序，把以上代码加入Web.Config中。

项目引用SharpClient项目和ISharpCarrier项目

示例代码：

DataTable GetTable()

{

SharpCachedAPI api = new SharpCachedAPI();

string key = "key_123";

if (api.IsError)
{
       return new DataTable();
 }
else
{
      if (api.Exist(key))

{
       return SharpCachedAPI.Deserialize<DataTable>(api.Get(key));
}

      else

{
       DataTable dt = new DataTable();
       string value = SharpCachedAPI.Serialize<DataTable>(dt);
       api.Set(key, value);
       return dt;
}

}

}