asp.net Cache vs memcached

一、环境
Server:IBM X365 M3 8Core 8G RAM
OS:windows server 2008 r2 & Hyper-V+CentOS 6.2
二、代码
（1）主体代码，简单读取：

SqlDataAdapter DataAdapter = new SqlDataAdapter();
SqlConnection Conn = new SqlConnection(DataConn);
Conn.Open();
SqlCommand myCommand = new SqlCommand(sql, Conn);
DataAdapter.SelectCommand = myCommand;
DataAdapter.Fill(ds);
Conn.Close()

（2）Memcached(客户端:BeITMemcached)

        cache.SendReceiveTimeout = 5000;
        cache.MinPoolSize = 2;
        cache.MaxPoolSize = 5;        
        string cached_dt = cache.Get(key) as string;
        if (cached_dt == null)
         {
            //主体代码
            string str_dt = DataTableXml.SerializeDataTableXml(ds.Tables[0]);
            cache.Set(key, str_dt, 30);
         }
        else
        {
            ds.Tables.Add(DataTableXml.DeserializeDataTable(cached_dt));
        }

（3）Asp.net Cache

        if (HttpContext.Current.Cache[key]==null)
        {
            //主体代码
            HttpContext.Current.Cache.Insert(key, ds, null, DateTime.Now.AddSeconds(30), System.Web.Caching.Cache.NoSlidingExpiration);
        }
        else
        {
            ds = (DataSet)HttpContext.Current.Cache[key];
        }

三、测试工具与参数
ab -t 30 -c 50 192.168.0.226/t.aspx
说明：t.aspx页面读取Dataset 24次,for(int i=1;i<=24;i++)
四、结果
（1）Memcached
Requests per second: 293.53 [#/sec] (mean)
Time per request: 170.343 [ms] (mean)
（2）Asp.net Cache
Requests per second: 2408.06 [#/sec] (mean)
Time per request: 20.764 [ms] (mean)
五、结论
Memcached可能在对象序列化及网络上相对LocalCache性能损耗大很多！
作者：敖士伟 ao.shiwei@gmail.com

引用：

CacheType　　Cache Gets/sec

ArrayCache　　365000

APC Cache　　98000

FileCache　　27000

MemcachedCache(TCP/IP)　　12200

MySQLQueryCache(TCP/IP)　　9900

MySQLQueryCache(UnixSocket)　　13500