From: Arjan van de Ven <arjan@infradead.org>
To: paulmck@linux.vnet.ibm.com
Cc: dipankar@in.ibm.com, linux-input@vger.kernel.org,
dmitry.torokhov@gmail.com, linux-kernel@vger.kernel.org
Subject: Re: Question about usage of RCU in the input layer
Date: Fri, 20 Mar 2009 21:58:25 -0700 [thread overview]
Message-ID: <20090320215825.19b8baae@infradead.org> (raw)
In-Reply-To: <20090321012746.GM6698@linux.vnet.ibm.com>
On Fri, 20 Mar 2009 18:27:46 -0700
"Paul E. McKenney" <paulmck@linux.vnet.ibm.com> wrote:
> > I've seen only this (input) one to take a long time
>
> Ouch!!! A -single- synchronize_rcu() taking a full second??? That
> indicates breakage.
I'll do a debug mode tomorrow and visualize it as part of the bootgraph;
hopefully it'll be an interesting result.
I'll share the graph when I have it....
--
Arjan van de Ven Intel Open Source Technology Centre
For development, discussion and tips for power savings,
visit http://www.lesswatts.org
next prev parent reply other threads:[~2009-03-21 4:57 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-19 4:58 Question about usage of RCU in the input layer Arjan van de Ven
2009-03-19 7:23 ` Dmitry Torokhov
2009-03-19 14:02 ` Arjan van de Ven
2009-03-19 8:56 ` Dipankar Sarma
2009-03-19 14:18 ` Arjan van de Ven
2009-03-20 2:07 ` Paul E. McKenney
2009-03-20 3:20 ` Arjan van de Ven
2009-03-20 4:45 ` Paul E. McKenney
2009-03-20 5:28 ` Eric Dumazet
2009-03-20 6:01 ` Dipankar Sarma
2009-03-20 6:01 ` Dipankar Sarma
2009-03-20 6:35 ` Eric Dumazet
2009-03-20 6:35 ` Eric Dumazet
2009-03-20 13:50 ` Arjan van de Ven
2009-03-20 14:31 ` Paul E. McKenney
2009-03-20 18:13 ` Arjan van de Ven
2009-03-21 1:27 ` Paul E. McKenney
2009-03-21 4:58 ` Arjan van de Ven [this message]
2009-03-21 18:58 ` Paul E. McKenney
2009-03-21 19:51 ` Arjan van de Ven
2009-03-21 20:26 ` Eric Dumazet
2009-03-21 20:26 ` Eric Dumazet
2009-03-21 21:07 ` Paul E. McKenney
2009-03-21 21:07 ` Paul E. McKenney
2009-03-22 3:40 ` Arjan van de Ven
2009-03-22 3:40 ` Arjan van de Ven
2009-03-22 4:38 ` Paul E. McKenney
2009-03-22 4:38 ` Paul E. McKenney
2009-03-22 4:51 ` Arjan van de Ven
2009-03-22 4:51 ` Arjan van de Ven
2009-03-22 5:18 ` Paul E. McKenney
2009-03-22 5:53 ` Arjan van de Ven
2009-03-22 16:53 ` Paul E. McKenney
2009-03-22 19:46 ` Arjan van de Ven
2009-03-22 20:52 ` Paul E. McKenney
2009-03-22 22:44 ` Arjan van de Ven
2009-03-22 23:03 ` Paul E. McKenney
2009-03-22 23:16 ` Arjan van de Ven
2009-03-23 1:27 ` Paul E. McKenney
2009-04-03 1:27 ` Paul E. McKenney
2009-03-21 21:13 ` Arjan van de Ven
2009-03-20 22:21 ` Paul E. McKenney
2009-03-21 5:46 ` Dmitry Torokhov
2009-03-21 9:13 ` Eric Dumazet
2009-03-21 9:13 ` Eric Dumazet
2009-03-21 18:58 ` Paul E. McKenney
2009-03-21 18:58 ` Paul E. McKenney
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