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Re: Fedora 10 - Boot Analysis



Casey Dahlin píše v Po 29. 12. 2008 v 05:35 -0500:
> Arjan van de Ven wrote:
> > On Tue, 16 Dec 2008 17:16:36 -0500 (EST)
> > Seth Vidal <skvidal fedoraproject org> wrote:
> >
> >   
> >>> Or hibernate?
> >>>       
> >> At least on my system hibernate takes as much time as a reboot.
> >>
> >>     
> >
> > btw this is a very fundamental property of hibernate. You need to do all
> > disk IO to get the system state to disk. And then at resume, you need
> > to do all disk IO to get the state from disk again. That's twice ;)
> >
> > This is compounded by the property that a hibernate tends to flush at
> > least half the disk cache (it has to, to get space to work in), which
> > you then need to page right back in, so even when you're back, the first
> > minute or two sucks badly.
> >
> > I suspect you will always be able to boot faster than you can
> > hibernate+resume.
> >
> >
> >
> >   
> 
> Slightly off subject, did sreadahead ever get publicly released? Did I 
> miss it?

It has been even submitted for review -
https://bugzilla.redhat.com/show_bug.cgi?id=464045


		Dan



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