Forum OpenACS Q&A: Re: Killing aolserver thread (linux)

Posted by Andrew Piskorski on
Incidentally, the reason the Linux kernel assigns a separate "Process ID" to each thread is because inside the kernal, they're scheduled the same (the 1:1 thread model). And in fact, from what I've read the kernel does not have a binary distinction between "processes" and "threads", but rather a much more flexible continuum between the two - not just "shared nothing" processes and "shared everything" threads, but various types of "shared this but not that" in between. Perhaps they use that internally in the kernel, but you won't see it in any user-level threading libraries anytime soon, because unlike POSIX processes and threads, those features are strictly Linux-specific.