Messages in this thread | | | Date | Fri, 29 Sep 2006 20:39:59 +0200 | From | Ingo Molnar <> | Subject | Re: [2.6.18-rc7-mm1] slow boot |
| |
* Andi Kleen <ak@suse.de> wrote:
> "Jan Beulich" <jbeulich@novell.com> writes: > > > There's nothing stack trace/unwind related among the functions listed at all afaics. > > I don't know much about how profiling works, is it perhaps just missing something? > > Perhaps lockdep calls them with interrupts off? The old profiler > doesn't support profiling with interrupts off. oprofile does, but it > cannot be used at early boot.
Yes, lockdep does everything that changes the dependency graph(s) with irqs off. Jan, i bounced you the mail with the function traces included, that should show you the overhead points.
Ingo - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |