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From: Joe Korty <joe.korty@ccur.com>
To: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] An RCU for SMP with a single CPU garbage collector
Date: Mon, 7 Mar 2011 16:16:13 -0500	[thread overview]
Message-ID: <20110307211613.GA26455@tsunami.ccur.com> (raw)
In-Reply-To: <20110307210157.GG3104@linux.vnet.ibm.com>

On Mon, Mar 07, 2011 at 04:01:57PM -0500, Paul E. McKenney wrote:
> Interesting!
> 
> But I would really prefer leveraging the existing RCU implementations
> to the extent possible.  Are the user-dedicated CPUs able to invoke
> system calls?  If so, something like Frederic's approach should permit
> the existing RCU implementations to operate normally.  If not, what is
> doing the RCU read-side critical sections on the dedicated CPUs?
> 
>                                                         Thanx, Paul

I haven't seen Frederic's patch.  Sorry I missed it!
It might have saved a bit of work...

I thought about the system call approach but rejected it.
Some (maybe many) customers needing dedicated CPUs will
have apps that never make any system calls at all.

Regards,
Joe

  parent reply	other threads:[~2011-03-07 21:16 UTC|newest]

Thread overview: 61+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-11-04 23:21 dyntick-hpc and RCU Paul E. McKenney
2010-11-05  5:27 ` Frederic Weisbecker
2010-11-05  5:38   ` Frederic Weisbecker
2010-11-05 15:06     ` Paul E. McKenney
2010-11-05 20:06       ` Dhaval Giani
2010-11-05 15:04   ` Paul E. McKenney
2010-11-08 14:10     ` Frederic Weisbecker
2010-11-05 21:00 ` [PATCH] a local-timer-free version of RCU Joe Korty
2010-11-06 19:28   ` Paul E. McKenney
2010-11-06 19:34     ` Mathieu Desnoyers
2010-11-06 19:42       ` Mathieu Desnoyers
2010-11-06 19:44         ` Paul E. McKenney
2010-11-08  2:11     ` Udo A. Steinberg
2010-11-08  2:19       ` Udo A. Steinberg
2010-11-08  2:54         ` Paul E. McKenney
2010-11-08 15:32           ` Frederic Weisbecker
2010-11-08 19:38             ` Paul E. McKenney
2010-11-08 20:40               ` Frederic Weisbecker
2010-11-10 18:08                 ` Paul E. McKenney
2010-11-08 15:06     ` Frederic Weisbecker
2010-11-08 15:18       ` Joe Korty
2010-11-08 19:50         ` Paul E. McKenney
2010-11-08 19:49       ` Paul E. McKenney
2010-11-08 20:51         ` Frederic Weisbecker
2010-11-06 20:03   ` Mathieu Desnoyers
2010-11-09  9:22   ` Lai Jiangshan
2010-11-10 15:54     ` Frederic Weisbecker
2010-11-10 17:31       ` Peter Zijlstra
2010-11-10 17:45         ` Frederic Weisbecker
2010-11-11  4:19         ` Paul E. McKenney
2010-11-13 22:30           ` Frederic Weisbecker
2010-11-16  1:28             ` Paul E. McKenney
2010-11-16 13:52               ` Frederic Weisbecker
2010-11-16 15:51                 ` Paul E. McKenney
2010-11-17  0:52                   ` Frederic Weisbecker
2010-11-17  1:25                     ` Paul E. McKenney
2011-03-07 20:31                     ` [PATCH] An RCU for SMP with a single CPU garbage collector Joe Korty
     [not found]                       ` <20110307210157.GG3104@linux.vnet.ibm.com>
2011-03-07 21:16                         ` Joe Korty [this message]
2011-03-07 21:33                           ` Joe Korty
2011-03-07 22:51                           ` Joe Korty
2011-03-08  9:07                             ` Paul E. McKenney
2011-03-08 15:57                               ` Joe Korty
2011-03-08 22:53                                 ` Joe Korty
2011-03-10  0:30                                   ` Paul E. McKenney
2011-03-10  0:28                                 ` Paul E. McKenney
2011-03-09 22:29                           ` Frederic Weisbecker
2011-03-09 22:15                       ` [PATCH 2/4] jrcu: tap rcu_read_unlock Joe Korty
2011-03-10  0:34                         ` Paul E. McKenney
2011-03-10 19:50                           ` JRCU Theory of Operation Joe Korty
2011-03-12 14:36                             ` Paul E. McKenney
2011-03-13  0:43                               ` Joe Korty
2011-03-13  5:56                                 ` Paul E. McKenney
2011-03-13 23:53                                   ` Joe Korty
2011-03-14  0:50                                     ` Paul E. McKenney
2011-03-14  0:55                                       ` Josh Triplett
2011-03-09 22:16                       ` [PATCH 3/4] jrcu: tap might_resched() Joe Korty
2011-03-09 22:17                       ` [PATCH 4/4] jrcu: add new stat to /sys/kernel/debug/rcu/rcudata Joe Korty
2011-03-09 22:19                       ` [PATCH 1/4] jrcu: remove preempt_enable() tap [resend] Joe Korty
2011-03-12 14:36                       ` [PATCH] An RCU for SMP with a single CPU garbage collector Paul E. McKenney
2011-03-13  1:25                         ` Joe Korty
2011-03-13  6:09                           ` Paul E. McKenney

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