Concurrent execution of rc-scripts with rcorder(8)

[kilian]

On Sun, Aug 21, 2011 at 02:54:15PM +0100, Chris Rees wrote:
> On 21 Aug 2011 13:39, "kilian" <kklimek at uos.de> wrote:
> >
> > Hello,
> >
> > the idea to start services concurrently during boot isn't new and the
> > question why FreeBSD doesn't do it has popped up on the forum and
> > mailing list occasionally. So, why not give it a shot?
> >
> > rcorder(8) is normally used during boot to bring the rc-scripts into a
> > particular order, so when they are executed linearly by /etc/rc, all
> > constraints will be satisfied. I modified rcorder(8) to enable it to
> > run rc-scripts concurrently, while keeping track of the constraints as
> > rc-scripts start and finish. You can find the code at
> > https://github.com/kil/rcorder. As it works now, it will fall back to the
> > current mode of execution if anything goes wrong. So, if worst comes to
> > worst, booting takes a bit longer.
> >
> > If you feel brave, give it a try (Actually, not too much bravery is
> needed:
> > on all boots of my machine it worked perfectly every time.)
> >
> > I haven't done any measurements yet on how large the speedup is, but
> booting
> > feels a bit faster with it. Also, there probably is room for improvement.
> > Any ideas and feedback are very welcome!
> >
> > -kilian
> >
> 
> I might suggest moving this to rc at . I'll try it later, looks interesting.
> 
> Chris

For anyone who is interested, updated the README[1] with some numbers,
detailing the influence on booting time.

[1] https://github.com/kil/rcorder/blob/master/README#L30