From: Ingo Molnar <mingo@elte.hu>
To: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Cc: linux-kernel@vger.kernel.org, cl@linux-foundation.org,
akpm@linux-foundation.org, manfred@colorfullife.com,
dipankar@in.ibm.com, josht@linux.vnet.ibm.com, schamp@sgi.com,
niv@us.ibm.com, dvhltc@us.ibm.com, ego@in.ibm.com,
laijs@cn.fujitsu.com, rostedt@goodmis.org, peterz@infradead.org,
penberg@cs.helsinki.fi, andi@firstfloor.org, tglx@linutronix.com,
Thomas Gleixner <tglx@linutronix.de>
Subject: Re: [PATCH, RFC] v6 scalable classic RCU implementation
Date: Thu, 25 Sep 2008 09:29:15 +0200 [thread overview]
Message-ID: <20080925072915.GB20249@elte.hu> (raw)
In-Reply-To: <20080923235340.GA12166@linux.vnet.ibm.com>
* Paul E. McKenney <paulmck@linux.vnet.ibm.com> wrote:
> Attached is an updated patch to Classic RCU that applies a hierarchy,
> greatly reducing the contention on the top-level lock for large
> machines. This passes 10-hour concurrent rcutorture and
> online-offline testing on 128-CPU ppc64 without dynticks enabled, and
> exposes some timekeeping bugs in presence of dynticks (exciting
> working on a system where "sleep 1" hangs until interrupted...).
i'm wondering about those timekeeping bugs. Do you have an idea what's
it about and does it affect mainline?
Ingo
next prev parent reply other threads:[~2008-09-25 7:30 UTC|newest]
Thread overview: 94+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-08-21 23:43 [PATCH, RFC, tip/core/rcu] scalable classic RCU implementation Paul E. McKenney
2008-08-22 4:37 ` Ingo Molnar
2008-08-22 13:47 ` Paul E. McKenney
2008-08-22 17:22 ` Paul E. McKenney
2008-08-22 18:16 ` Josh Triplett
2008-08-23 16:07 ` Ingo Molnar
2008-08-24 2:44 ` Paul E. McKenney
2008-08-22 23:29 ` Josh Triplett
2008-08-23 1:53 ` Paul E. McKenney
2008-08-25 22:02 ` Josh Triplett
2008-08-26 16:05 ` Paul E. McKenney
2008-08-27 0:38 ` Josh Triplett
2008-08-27 18:34 ` Paul E. McKenney
2008-08-27 20:23 ` Josh Triplett
2008-08-27 20:41 ` Paul E. McKenney
2008-08-25 10:34 ` Peter Zijlstra
2008-08-25 15:16 ` Paul E. McKenney
2008-08-25 15:26 ` Peter Zijlstra
2008-08-27 18:28 ` Paul E. McKenney
2008-08-24 8:08 ` Manfred Spraul
2008-08-24 16:32 ` Paul E. McKenney
2008-08-24 18:25 ` Manfred Spraul
2008-08-24 21:19 ` Paul E. McKenney
2008-08-25 0:07 ` [PATCH, RFC, tip/core/rcu] v2 " Paul E. McKenney
2008-08-30 0:49 ` [PATCH, RFC, tip/core/rcu] v3 " Paul E. McKenney
2008-08-30 9:33 ` Peter Zijlstra
2008-08-30 14:10 ` Paul E. McKenney
2008-08-30 15:40 ` Peter Zijlstra
2008-08-30 19:38 ` Paul E. McKenney
2008-09-02 13:26 ` Mathieu Desnoyers
2008-09-02 13:41 ` Peter Zijlstra
2008-09-02 14:55 ` Paul E. McKenney
2008-08-30 9:58 ` Lai Jiangshan
2008-08-30 13:32 ` Manfred Spraul
2008-08-30 14:34 ` Paul E. McKenney
2008-08-31 10:58 ` Manfred Spraul
2008-08-31 17:20 ` Paul E. McKenney
2008-08-31 17:45 ` Manfred Spraul
2008-08-31 17:55 ` Paul E. McKenney
2008-08-31 18:18 ` Manfred Spraul
2008-08-31 19:23 ` Paul E. McKenney
2008-08-30 14:29 ` Paul E. McKenney
2008-09-01 9:38 ` Andi Kleen
2008-09-02 1:05 ` Paul E. McKenney
2008-09-02 6:18 ` Andi Kleen
2008-09-05 15:29 ` [PATCH, RFC] v4 " Paul E. McKenney
2008-09-05 19:33 ` Andrew Morton
2008-09-05 23:04 ` Paul E. McKenney
2008-09-05 23:52 ` Andrew Morton
2008-09-06 4:16 ` Paul E. McKenney
2008-09-06 16:37 ` Manfred Spraul
2008-09-07 17:25 ` Paul E. McKenney
2008-09-07 10:18 ` [RFC, PATCH] Add a CPU_STARTING notifier (was: Re: [PATCH, RFC] v4 scalable classic RCU implementation) Manfred Spraul
2008-09-07 11:07 ` Andi Kleen
2008-09-07 19:46 ` Paul E. McKenney
2008-09-15 16:02 ` [PATCH, RFC] v4 scalable classic RCU implementation Paul E. McKenney
2008-09-16 16:52 ` Manfred Spraul
2008-09-16 17:30 ` Paul E. McKenney
2008-09-16 17:48 ` Manfred Spraul
2008-09-16 18:22 ` Paul E. McKenney
2008-09-21 11:09 ` Manfred Spraul
2008-09-21 21:14 ` Paul E. McKenney
2008-09-23 23:53 ` [PATCH, RFC] v6 " Paul E. McKenney
2008-09-25 7:26 ` Ingo Molnar
2008-09-25 14:05 ` Paul E. McKenney
2008-09-25 7:29 ` Ingo Molnar [this message]
2008-09-25 14:18 ` Paul E. McKenney
2008-10-10 16:09 ` [PATCH, RFC] v7 " Paul E. McKenney
2008-10-12 15:52 ` Manfred Spraul
2008-10-12 22:46 ` Paul E. McKenney
2008-10-13 18:03 ` Manfred Spraul
2008-10-15 1:11 ` Paul E. McKenney
2008-10-15 8:13 ` Manfred Spraul
2008-10-15 15:26 ` Paul E. McKenney
2008-10-22 18:41 ` Manfred Spraul
2008-10-22 21:02 ` Paul E. McKenney
2008-10-22 21:24 ` Manfred Spraul
2008-10-27 16:45 ` Paul E. McKenney
2008-10-27 19:48 ` Manfred Spraul
2008-10-27 23:52 ` Paul E. McKenney
2008-10-28 5:30 ` Manfred Spraul
2008-10-28 15:17 ` Paul E. McKenney
2008-10-28 17:21 ` Manfred Spraul
2008-10-28 17:35 ` Paul E. McKenney
2008-10-17 8:34 ` Gautham R Shenoy
2008-10-17 15:35 ` Gautham R Shenoy
2008-10-17 15:46 ` Paul E. McKenney
2008-10-17 15:43 ` Paul E. McKenney
2008-12-08 18:42 ` Paul E. McKenney
2008-11-02 20:10 ` Manfred Spraul
2008-11-03 20:33 ` Paul E. McKenney
2008-11-05 19:48 ` Manfred Spraul
2008-11-05 21:27 ` Paul E. McKenney
2008-11-15 23:20 ` [PATCH, RFC] v8 " Paul E. McKenney
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