Debugging 20s pause in boot time in rawhide

Lennart Poettering mzerqung at 0pointer.de
Mon Jan 17 21:11:55 UTC 2011


On Sun, 16.01.11 11:11, Peter Robinson (pbrobinson at gmail.com) wrote:

> 
> On Sun, Jan 16, 2011 at 7:32 AM, Jason D. Clinton <me at jasonclinton.com> wrote:
> > There's a twenty second pause in my boot sequence, shown below, before GDM
> > starts and I'm not certain if it's in NetworkManager waiting on org.bluez,
> > bluez itself or the bluez systemd unit file. (Or maybe I'm completely off.)
> > Later on, the bluetooth.service starts normally and Bluetooth is working
> > normally. Any ideas how to debug this?
> 
> Can you use bootchart [1] to map it, not sure if it works with systemd or not.
> 
> Peter
> 
> [1] http://meego.gitorious.org/meego-developer-tools/bootchart

Yes it works fine with systemd, and this version even is packaged in
Fedora as the "bootchart" package. Just add "init=/sbin/bootchartd
initcall_debug printk.time=y" to the kernel cmdline to use it to profile
systemd.

Lennart

-- 
Lennart Poettering - Red Hat, Inc.


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