Re: FW: Parallellizing the boot in Debian Squeeze - ready for wider testing
On Thu, 6 May 2010 23:31:15 +0300
Alexander Batischev <eual.jp@gmail.com> wrote:
> > These days, the init.d script dependencies in Squeeze are quite
> > complete, so complete that it is actually possible to run all the
> > init.d scripts in parallell based on these dependencies. If you want
> > to test your Squeeze system, make sure dependency based boot
> > sequencing is enabled, and add this line to /etc/default/rcS:
> >
> > CONCURRENCY=makefile
> >
> > That is it. It will cause sysv-rc to use the startpar tool to run
> > scripts in parallel using the dependency information stored in
> > /etc/init.d/.depend.boot, /etc/init.d/.depend.start and
> > /etc/init.d/.depend.stop to order the scripts. Startpar is configured
> > to try to start the kdm and gdm scripts as early as possible, and will
> > start the facilities required by kdm or gdm as early as possible to
> > make this happen.
> >
> > Give it a try, and see if you like the result. If some services fail
> > to start properly, it is most likely because they have incomplete
> > init.d script dependencies in their startup script (or some of their
> > dependent scripts have incomplete dependencies). Report bugs and get
> > the package maintainers to fix it. :)
>
> Well, I did that and restarted system. I didn't notice any errors, and
> system doesn't boot faster or slower than usual. Don't know is it good
> or bad news, though…
The last time we discussed this, it was claimed that there will be no
difference on single core systems:
http://lists.debian.org/debian-user/2009/09/msg00721.html
I have a single core (Celeron M) system - should I bother with this at
all?
Celejar
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