In applications that do a great deal of copying of data between channels, the zero-copy technique can offer a significant performance improvement.
在需要在通道间大量拷贝数据的应用程序中，零拷贝技巧能够显著地提高性能。
This has the potential to increase performance significantly for applications that do a great deal of copying of data from one I/O channel to another, such as Web servers.
这就极有可能提高了需要在 I/O 通道间大量拷贝数据的应用程序的性能，如 Web 服务器。
However, copying collectors have the added cost of copying the data from one space to another, adjusting all references to point to the new copy.
不过，复制收集器因为要将数据从一个空间复制到另一个空间、调整所有引用以指向新备份而增加了成本。
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