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在哈希表中缓存byte []与MemoryStreams
原标题:Cache byte[] in a hashtable vs MemoryStreams
  • 时间:2010-02-11 11:56:44
  •  标签:
  • .net
  • file

We are reading huge files in to memorystream and reusing them across mulitple locations in the code. Just wondering if it is a better idea to get byte[] of files and store them in a hashtable for such a scenario. This way we could close the memorystream when we are done and just recreate one from hashtable when needed. Just wondering if there are any drawbacks with this method. Thanks N

最佳回答

使用byte[]相比MemoryStream的一个优点是,MemoryStream拥有更多状态-它有一个光标。特别是,两个线程可以轻松地从同一个字节数组中进行读取(复制它们感兴趣的部分等),而如果它们尝试同时使用Stream.Read,可能不会得到预期的结果。

这两者的不利之处在于它们是可变的 :(

问题回答

只是想知道这种方法是否有任何缺点。

对于巨大的文件?什么尺寸才算“巨大”?可以使用多少主内存?

如果文件实在太大,你最好一开始就不要将它们保存在内存中。相反,你应该根据需要在读取它们,以减少内存使用。





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