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Re: Bootup speed for F8
- From: Jesse Barnes <jbarnes virtuousgeek org>
- To: fedora-devel-list redhat com
- Cc:
- Subject: Re: Bootup speed for F8
- Date: Fri, 30 Nov 2007 21:50:15 -0800
On Friday, November 30, 2007 6:06 pm Dimi Paun wrote:
> On Fri, 2007-11-30 at 11:18 -0500, Bill Nottingham wrote:
> > 1) bootchart weirdness (as it's from when bootchart starts)
> > 2) hotplug issues with a driver in the initrd not initializing
> > right
>
> Well, maybe, but I think it's a common problem:
> http://lattica.com/pub/bootchart-20071130-f8.png
>
> In my case, that initial time is close to 11s! And mind
> you, it's no bootchard weirdness, I've always noticed it.
Yeah, I'm seeing the same thing, ~10s on one machine and ~15s on
another. I briefly looked at the nash scripts and hotplug code in the
initrd. It looks like we spend a lot of time waiting for the kernel to
generate hotplug events and settle down the devices... I'm not sure how
much of it could reasonably be trimmed, maybe comparing to a non-initrd
config would make sense? I think this is pjones' stuff, so there are
probably good reasons for the way things are.
Jesse
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