From: Ingo Molnar <mingo@elte.hu>
To: Andi Kleen <ak@suse.de>
Cc: Jan Beulich <jbeulich@novell.com>, Andrew Morton <akpm@osdl.org>,
linux-kernel@vger.kernel.org, Randy Dunlap <rdunlap@xenotime.net>,
tilman@imap.cc
Subject: Re: [2.6.18-rc7-mm1] slow boot
Date: Fri, 29 Sep 2006 20:39:59 +0200 [thread overview]
Message-ID: <20060929183959.GA13991@elte.hu> (raw)
In-Reply-To: <p73lko2ircn.fsf@verdi.suse.de>
* 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
next prev parent reply other threads:[~2006-09-29 18:48 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-09-24 16:59 [2.6.18-rc7-mm1] slow boot Tilman Schmidt
2006-09-24 19:22 ` Valdis.Kletnieks
2006-09-24 22:02 ` Tilman Schmidt
2006-09-24 21:53 ` Andrew Morton
2006-09-24 22:15 ` Tilman Schmidt
2006-09-24 22:36 ` Alan Cox
2006-09-24 22:41 ` Andrew Morton
2006-09-26 23:48 ` Tilman Schmidt
2006-09-27 0:21 ` Andrew Morton
2006-09-28 17:00 ` Tilman Schmidt
2006-09-28 17:12 ` Andi Kleen
2006-09-28 23:20 ` Tilman Schmidt
2006-09-28 23:30 ` Randy Dunlap
2006-09-29 0:15 ` Tilman Schmidt
2006-09-29 7:10 ` Jan Beulich
2006-09-29 16:12 ` Andi Kleen
2006-09-29 18:39 ` Ingo Molnar [this message]
2006-10-04 7:05 ` Jan Beulich
2006-09-29 8:49 ` Andi Kleen
2006-09-24 21:58 ` [2.6.18-mm1] slow boot (was: [2.6.18-rc7-mm1] slow boot) Tilman Schmidt
2006-09-25 12:09 ` [2.6.18-rc7-mm1] slow boot Alexander Gran
2006-10-25 18:14 ` Tilman Schmidt
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