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Re: IDEA: Shortening boot-time



On fre, 2004-07-23 at 16:56 -0400, Bill Nottingham wrote:
> Kenneth Porter (shiva sewingwitch com) said: 
> > --On Friday, July 23, 2004 8:21 AM +0200 Hans de Goede 
> > <j w r degoede 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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