IDEA: Shortening boot-time
David Nielsen
dnielsen at breakmygentoo.net
Fri Jul 23 21:50:00 UTC 2004
On fre, 2004-07-23 at 16:56 -0400, Bill Nottingham wrote:
> Kenneth Porter (shiva at sewingwitch.com) said:
> > --On Friday, July 23, 2004 8:21 AM +0200 Hans de Goede
> > <j.w.r.degoede at hhs.nl> wrote:
> >
> > >The basic idea is todo things the XP way and loads lotts of (cr)app(s)
> > >while the user is already seeing a GUI.
> >
> > Paraphrasing Knuth, premature optimization is a bad investment. Before we
> > start down this road, let's see some measurements showing exactly how much
> > time each step in the boot process takes. We can then decide where to
> > invest effort to improve with the limited development resources available.
> >
> > Has anyone instrumented the boot process? For example, syslogging each
> > initscript to get a timestamp would tell us how much time was spent in each
> > one.
>
> It's been oprofiled a couple of times... the majority of the time seems
> spent in disk I/O. :/
That is what RML says as well, his preload work is an attempt at
amending this I think, but I really think it would be wise to look at
what he has done in this area.
- David
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