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Subject: Re: Heads Up: shutdown keyword added to 34 rc.d scripts.
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Doug Barton wrote:

> The ability to do things sequentially is a key benefit of the rc.d 
> system. The fact that we have not been taking full advantage of that to 
> date is (once again IMO) an oversight.

I hope you mean "sequentially, if needed" - serializing the entire 
shutdown sequence would be very bad for performance (-> user experience).

Offtopic, but related to this and the thread about paralelizing startup 
scripts: I don't know what Ubuntu is using nowadays, but that thing (the 
x64 "server" version to be precise) boots and shutdowns incredibly fast. 
Linux used to be much slower than FreeBSD at startup, to the point of 
ridicule, but at least the Ubuntu variety is now flaming fast. The 
improvements are not only in the userland but also at in-kernel hardware 
detection. I think both the hardware detection and the userland startup 
each go in parallel (at their appropriate stages, obviously).