This is because a thread should consist of little more than a scheduler object containing a set of registers, a stack segment and some scheduler administration state. Unlike a process, there should be no need to copy large amounts of memory, as threads should be able to re-use the existing process' copy of memory.

You could change a few words and the same would apply to forking a process on Linux and, I believe, *BSD. (I also believe it fits to most modern Unix variants these days, but I've only read the source for Linux.)

In reply to Re: Re: Why use threads over processes, or why use processes over threads? by chromatic
in thread Why use threads over processes, or why use processes over threads? by pg

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