In user space, note that because user processes appear in separate address Spaces, moving data between them must occur through some form of inter-processcommunication mechanism.
在用户空间，注意，由于用户进程出现在单独的地址空间，在它们之间移动数据必须经过某种进程间通信机制。
2
This avoids network latency and the overhead of inter-processcommunication, as well as context switching in the operating system, further contributing to extreme speed.
这样就能够避免网络延迟、进程间通信的开销以及操作系统中的上下文切换，从而进一步提高速度。
3
In terms of time and space, Shared memory is probably the most efficient inter-processcommunication channel provided by all modern operating systems.