NOTE: Shmat and mmap are used in Lotus Domino to get Shared memory.

注：shmat和mmap在Lotus Domino中用于获得共享内存。

youdao

The munmap subroutine only unmaps regions created from calls to the mmap subroutine.

munmap 子例程只是取消 对 mmap 子例程的调用而创建的区域的映射。

youdao

Also, invoking mmap and mfree is much slower than carving out an existing chunk of memory.

还有，调用mmap和mfree比雕刻出一个已存在的内存块慢许多。

youdao