hisham

@boutnaru has an article on this, wherein he has explained about PID 0 in great detail: @boutnaru/the-linux-process-journey-pid-0-swapper-7868d1131316" target="_blank" rel="nofollow noopener">medium.com/@boutnaru/the-…

Thread: The Mytery of PID 0 Let’s talk about PID 0, the unsung hero in Unix-like OSes. PID 0 is the identifier for the idle process, which kicks in when no other process is runnable. Instead of running user applications, it ensures the CPU remains engaged and responsive.

When the CPU is idle, it can waste power and reduce system responsiveness. By running this idle process(PID 0), the CPU stays engaged without executing user tasks. PID 0 manages power states efficiently, ensuring stability and responsiveness in the system.

PID 0 serves as the idle process in kernel space, activated when no other processes are runnable, thus keeping the CPU engaged. In contrast, PID 1, the init process, runs in user space and is responsible for booting the system and managing user processes.

I opened Twitter after a long time only to find that my account had been hacked, with random people being followed and sketchy posts being reposted. Stay safe, y'all.