通过UDP传输文件的最快方法
[英]Fastest way to transfer a file over UDP
问题描述
What's the fastest way to send a file over UDP? 
通过UDP发送文件的最快方法是什么？
A) Create a large datagram for each chunk of the file, send that, and wait for a acknowledgement from the client before continuing A）为文件的每个块创建一个大数据报，发送该数据报，并在继续之前等待客户端的确认
B) Create a large datagram for each chunk of the file, send multiple (numbered) datagrams, and wait for an acknowledgement that all sections were received, then continue the transfer. B）为文件的每个块创建一个较大的数据报，发送多个（编号）数据报，并等待确认已收到所有节，然后继续传输。 If some were not received with 5 seconds, re-transmit those parts 如果5秒钟后仍未收到，请重新发送这些部分
C) Some other method I'm not yet aware of C）我还不知道的其他方法
2 个解决方案
解决方案1
2 2011-05-15 23:08:52
Practically anything I can think of in (C) will be miles faster than either of them. 实际上，我在（C）中想到的任何事物都将比它们中的任何一个都快几英里。 Neither of them uses windowing, so they can't use all the available bandwidth-delay product. 它们都不使用窗口，因此它们不能使用所有可用的带宽延迟乘积。 (B) is in fact a very poor piece of protocol design. （B）实际上是一个非常差的协议设计。
By the time you have added all the required features to UDP you have TCP. 到将所有必需的功能添加到UDP时，您已经有了TCP。 Use TCP. 使用TCP。
解决方案2
2 已采纳 2011-05-15 23:09:58
解决方案B比A快，但是解决方案C更快（更安全）：尝试使用TCP而不是UDP
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