Zero Copy

通过减少系统在内核态和用户态之间的数据拷贝来提高性能的技术

http://en.wikipedia.org/wiki/Zero-copy
http://www.linuxjournal.com/article/6345
http://www.ibm.com/developerworks/library/j-zerocopy/index.html
http://www.cs.duke.edu/ari/trapeze/freenix/paper.html

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