Author: Thom Holwerda
Source
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Listen now, and see the system behind the screens before the future listens to you. = > Atlas of AI $0.00 with trial. Read by Larissa Gallagher
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. There’s a slightly longer short version right at the end, or you can stick with me for the extremely long middle bit! But surely you could just google what PID 0 is, right? Why am I even publishing this? ↫ David Anderson What a great read. Just great.
