Re: Bootup speed for F8

[Jesse Barnes <jbarnes virtuousgeek org>]

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