From: Paul Mundt <lethal@linux-sh.org>
To: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Cc: linux-kernel@vger.kernel.org, mingo@elte.hu,
akpm@linux-foundation.org, niv@us.ibm.com, dvhltc@us.ibm.com,
dhowells@redhat.com, kernel@wantstofly.org, matthew@wil.cx
Subject: Re: [PATCH -tip] v5 RCU: the bloatwatch edition
Date: Wed, 24 Jun 2009 01:39:40 +0900 [thread overview]
Message-ID: <20090623163939.GE26674@linux-sh.org> (raw)
In-Reply-To: <20090623161217.GA15298@linux.vnet.ibm.com>
On Tue, Jun 23, 2009 at 09:12:17AM -0700, Paul E. McKenney wrote:
> This patch is a -tip version of RCU designed for (!SMP && EMBEDDED)
> 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 rcutorture testing in each
> of the four relevant configurations (combinations of NO_HZ and PREEMPT)
> on x86. This saves 1263 bytes compared to Classic RCU, and more than
> three kilobytes compared to Hierarchical RCU (updated to 2.6.30):
>
[snip]
> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
> Acked-by: David Howells <dhowells@redhat.com>
Acked-by: Paul Mundt <lethal@linux-sh.org>
prev parent reply other threads:[~2009-06-23 16:40 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-06-23 4:24 [PATCH] v5 RCU: the bloatwatch edition Paul E. McKenney
2009-06-23 9:12 ` David Howells
2009-06-23 9:32 ` Ingo Molnar
2009-06-23 12:58 ` Paul E. McKenney
2009-06-23 13:46 ` Paul Mundt
2009-06-23 14:07 ` David Howells
2009-06-23 15:47 ` Lennert Buytenhek
2009-06-23 16:10 ` Paul E. McKenney
2009-06-23 16:12 ` [PATCH -tip] " Paul E. McKenney
2009-06-23 16:39 ` Paul Mundt [this message]
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