Current Bootchart / breaking SD boot
Carsten Haitzler (The Rasterman)
raster at openmoko.org
Wed Jul 9 22:16:30 CEST 2008
On Wed, 9 Jul 2008 21:04:37 +0200 Sander van Grieken <sander at 3v8.net> babbled:
> If breaking boot from SD support only gains us 6 seconds I'd vote no.
> > of course we will look at the rest of userspace, but that doesn't mean we
> > should just ignore the kernel.
> I dont know the motorola rokr but a large part of the speed increase is
> probably because a lot of the base services and the GUI are thrown into one
> large statically linked binary, a static /dev, no dbus.. (correct me if I'm
yes. it likely does.. but it manage a kernel AND userspace boot in less time
than our kernel just gets to starting init. on a significantly lower-end piece
of hardware too. pretty embarrassing.
> > > I guess I failed to check if you did it before I started doing it months
> > > ago and found it was nice. I explained a very strong reason --->
> > i know you do it. this is one of the reasons our production systems will
> > never improve - you never feel the pain of them as you always are doing
> > something different. if you had to suffer from the same boot time as the
> > rest of us every day... many times a day, you'd be thinking differently
> > about the sdio driver built into the kernel - along with everything else.
> > i'm just trying to point out that we should be optimising for the
> > production use-case, not for a debug/kernel hacker mode. if we can get sdio
> > up in much less time, then it's not much of a harm to still be there.
> A 'normal' user will probably seldom reboot. I assume most of the time they
> will suspend/resume, So is boot time really such a big issue?
you'll be booting a lot if you travel on planes.
Carsten Haitzler (The Rasterman) <raster at openmoko.org>
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