Vfork

What is vfork ? It’s a special case of a clone. It is used to create new processes without copying the page tables of the parent process. calling thread is suspended until the child call execve or _exit. Points To Remember vfork()is an obsolete optimization. Before good memory management, fork()made a full copy of the parent’s memory, so it was pretty expensive. since in many cases a fork()was followed by `exec(), which discards the current memory map and creates a new one, it was a needless expense....