ITT: people giving wrong answers to a post linked to a blog that answers the question ‘What is PID 0?’
Nonsense, yes. Isn’t that what low effort posts (like nothing else but a link) are made for?
You can call it low effort, but Lemmy is a “link aggregator”. Even just sharing links has its value.
The tl;dr from the article (which is actually worth a read):
The very short version: Unix PIDs do start at 0! PID 0 just isn’t shown to userspace through traditional APIs. PID 0 starts the kernel, then retires to a quiet life of helping a bit with process scheduling and power management. Also the entire web is mostly wrong about PID 0, because of one sentence on Wikipedia from 16 years ago.
It’s proportion integral derivative control of some functionality. Fans can use it.
only fans? 😆
Mr. Anderson, Thank you for your analysis/work and well written treatise, on PID 0. I enjoyed learning more about Linux & Unix and a bit of history thereof as well.
The last time my community found a PID.0 in our midst, he was beaten downtown in broad daylight by over a dozen assailants, no witnesses.
