File.Delete和Directory.Delete网络性能

问题描述

有人知道 File.Delete 和 Directory.Delete 执行吗？

我的意思是：如果假设我通过网络删除一些文件/文件夹并且网络相当慢，会发生什么？

它会在本地完成吗？将文件移动到该网络位置会消耗更多的带宽吗？

解决方案

它不会像本地一样快。它会很慢，延迟取决于您的网络条件。

您不发送您的删除命令远程到知道如何删除一个文件夹作为原子操作的聪明的一端。您的代码实际上运行在网络位置愚蠢，并删除逐个文件。

至于你的最后一个问题，删除几乎总是比 Move 更快。在跨磁盘（当然也包括网络位置）移动文件时，它实际上是一个复制操作（在末尾有一个删除）。

Does anybody know how File.Delete and Directory.Delete execute?

I mean: what happens if assuming I were to delete some files/folders over the network and the network is considerably slow?

Would it complete as fast as it would be locally? Would it consume more bandwidth than say move files to that network location?

解决方案

It won't be as fast a it would be locally. It would be slow, with a latency that depends on your network conditions.

You don't send your Delete command "remotely" to a "smart end" which knows how to, say, delete a folder as an atomic operation. Your code actually runs against the network location which is "dumb" and deletes file-by-file.

As for your last question, Delete is almost always faster than Move. When you move files across disks (and of course across network locations), it's actually a copy operation (with a 'delete' at the end of it).

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