c# - Appfabric 缓存大小

Question

我有一个包含 250,000 行的表，所有行都被选择缓存为列表；这里的一点是，当缓存到 appfabric 时，该表需要大约 5.6 GB oo ram，这正常吗？还有其他方法可以减小尺寸吗？应对此类挑战的最佳方法是什么？

Answer 1

对象以序列化的形式存储在缓存中。因此，要了解缓存大小，您只需计算序列化对象的大小即可。

AppFabric 在将项目存储在缓存中之前使用 NetDataContractSerializer 类进行序列化。因此，确定对象大小，将检测/调试代码添加到序列化对象并记录其序列化大小的应用程序/单元测试中。

标准的方法是

// requires following assembly references:
//
//using System.Xml;
//using System.IO;
//using System.Runtime.Serialization;
//using System.Runtime.Serialization.Formatters.Binary;
//
// Target object “obj”
//
long length = 0;

MemoryStream stream1 = new MemoryStream();
using (XmlDictionaryWriter writer = 
    XmlDictionaryWriter.CreateBinaryWriter(stream1))
{
    NetDataContractSerializer serializer = new NetDataContractSerializer();
    serializer.WriteObject(writer, obj);
    length = stream1.Length; 
}

if (length == 0)
{
    MemoryStream stream2 = new MemoryStream();
    BinaryFormatter bf = new BinaryFormatter();
    bf.Serialize(stream2, obj);
    length = stream2.Length;
}
// do somehting with length

你说

i have a table with 250,000 row all selected to be cached as List Sometimes you have to use a different storage format : for example, you can't use datatable/dataset because there are very unefficient. To reduce to cache size, optimize the serialized format.