From: Ingo Molnar <mingo@elte.hu>
To: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Cc: linux-kernel@vger.kernel.org, akpm@linux-foundation.org,
niv@us.ibm.com, dvhltc@us.ibm.com
Subject: Re: [PATCH fyi] RCU: the bloatwatch edition
Date: Wed, 14 Jan 2009 11:40:55 +0100 [thread overview]
Message-ID: <20090114104055.GD2913@elte.hu> (raw)
In-Reply-To: <20090113221724.GA15307@linux.vnet.ibm.com>
* Paul E. McKenney <paulmck@linux.vnet.ibm.com> wrote:
> Just FYI, not for inclusion.
>
> This patch is a version of RCU designed for !CONFIG_SMP provided as a
> proof of concept of a small-footprint RCU implementation. In
> particular, the implementation of synchronize_rcu() is extremely
> lightweight and high performance. It passes moderate rcutorture testing
> in each of the four relevant configurations (combinations of NO_HZ and
> PREEMPT) on x86.
>
> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
maybe it could be included - dependent on PREEMPT, just like we have SLOB?
it would also be rather educative IMO: if someone wants to understand the
core concepts of RCU, start with kernel/rcutiny.c. We are getting
complaints from academic institutions that the Linux kernel is getting too
complex to teach in courses - and that's a pity.
Ingo
next prev parent reply other threads:[~2009-01-14 10:41 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-01-13 22:17 [PATCH fyi] RCU: the bloatwatch edition Paul E. McKenney
2009-01-14 10:40 ` Ingo Molnar [this message]
2009-01-14 16:00 ` Paul E. McKenney
2009-01-14 19:10 ` Ingo Molnar
2009-01-14 20:20 ` Paul E. McKenney
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