Zero-Copy
"Zero-copy" describes computer operations in which the CPU does not perform the task of copying data from one memory area to another or in which unnecessary data copies are avoided
零拷贝在不同的上下文中指代不同的操作，可以指mmap，sendfile。也在序列化中指代zero parse
https://www.cnblogs.com/rickiyang/p/13265043.html
https://brunocalza.me/what-zero-copy-serialization-means/
https://groups.google.com/g/capnproto/c/kKw89THwoEY/m/mvqOOYaPztwJ
