Pqluglist- Rethinking PID 1

[Parksville-Qualicum Linux Users group mail list]

Parksville-Qualicum Linux Users group mail list wrote:
> If you are really geeky you might enjoy this.
>
>  http://0pointer.de/blog/projects/systemd.html
>
> "Process Identifier 1
>
> On every Unix system there is one process with the special process 
> identifier 1. It is started by the kernel before all other processes 
> and is the parent process for all those other processes that have 
> nobody else to be child of. Due to that it can do a lot of stuff that 
> other processes cannot do. And it is also responsible for some things 
> that other processes are not responsible for, such as bringing up and 
> maintaining userspace during boot.
>
> Historically on Linux the software acting as PID 1 was the venerable 
> sysvinit package, though it had been showing its age for quite a 
> while. Many replacements have been suggested, only one of them really 
> took off: Upstart, which has by now found its way into all major 
> distributions.
>
> As mentioned, the central responsibility of an init system is to bring 
> up userspace. And a good init system does that fast. Unfortunately, 
> the traditional SysV init system was not particularly fast.
>
> For a fast and efficient boot-up two things are crucial:
>
>     * To start less.
>     * And to start more in parallel.
> "
>
    Thank You Alfred,I hope Your tooth is better   Jana