From: Peter Zijlstra <a.p.zijlstra@chello.nl>
To: Ingo Molnar <mingo@elte.hu>
Cc: Frederic Weisbecker <fweisbec@gmail.com>,
mitake@dcl.info.waseda.ac.jp, andi@firstfloor.org,
acme@redhat.com, linux-kernel@vger.kernel.org
Subject: Re: [PATCH][RFC] Adding information of counts processes acquired how many spinlocks to schedstat
Date: Fri, 10 Jul 2009 15:56:52 +0200 [thread overview]
Message-ID: <1247234212.7529.40.camel@twins> (raw)
In-Reply-To: <20090710135032.GA26264@elte.hu>
On Fri, 2009-07-10 at 15:50 +0200, Ingo Molnar wrote:
> > I wonder if the lock_*() events should become independant from
> > lockdep so that we don't need to always enable lockdep to get the
> > lock events at the same time.
> >
> > It could be a separate option.
>
> They already should be to a large degree if CONFIG_LOCK_STAT is
> enabled but CONFIG_PROVE_LOCKING is off. In theory :-)
Right, you don't need CONFIG_PROVE_LOCKING in order to get the
tracepoints. Also, you can always boot with prove_locking=0 or runtime
disable it using: echo 0 > /sys/module/lockdep/parameters/prove_locking
next prev parent reply other threads:[~2009-07-10 13:57 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-07-01 6:21 [PATCH][RFC] Adding information of counts processes acquired how many spinlocks to schedstat Hitoshi Mitake
2009-07-01 7:31 ` Ingo Molnar
2009-07-01 8:21 ` Hitoshi Mitake
2009-07-01 13:45 ` Frederic Weisbecker
2009-07-01 13:50 ` Ingo Molnar
2009-07-01 14:17 ` mitake
2009-07-01 7:38 ` Andi Kleen
2009-07-01 8:42 ` Hitoshi Mitake
2009-07-01 9:07 ` Ingo Molnar
2009-07-01 9:42 ` Hitoshi Mitake
2009-07-01 11:06 ` Ingo Molnar
2009-07-01 12:53 ` Hitoshi Mitake
2009-07-01 15:44 ` Frederic Weisbecker
2009-07-06 5:20 ` mitake
2009-07-06 8:51 ` Peter Zijlstra
2009-07-06 11:54 ` Andi Kleen
2009-07-10 12:45 ` mitake
2009-07-10 12:52 ` Peter Zijlstra
2009-07-10 13:43 ` Ingo Molnar
2009-07-10 13:46 ` Frederic Weisbecker
2009-07-10 13:50 ` Ingo Molnar
2009-07-10 13:56 ` Peter Zijlstra [this message]
2009-07-12 7:23 ` Hitoshi Mitake
2009-07-12 13:24 ` Peter Zijlstra
2009-07-13 6:06 ` Hitoshi Mitake
2009-07-13 8:51 ` Ingo Molnar
2009-07-14 0:48 ` Hitoshi Mitake
2009-07-18 13:25 ` Ingo Molnar
2009-07-01 12:40 ` Andi Kleen
2009-07-01 13:50 ` [PATCH][RFC] Adding information of counts processes acquired how many spinlocks to schedstat II Andi Kleen
2009-07-01 9:48 ` [PATCH][RFC] Adding information of counts processes acquired how many spinlocks to schedstat Andi Kleen
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