From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
To: Patrik Kluba <kpajko79@gmail.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: PREEMPT_RCU on UP
Date: Fri, 30 Oct 2009 15:45:28 -0700 [thread overview]
Message-ID: <20091030224528.GN6782@linux.vnet.ibm.com> (raw)
In-Reply-To: <26080408.post@talk.nabble.com>
On Tue, Oct 27, 2009 at 09:10:02AM -0700, Patrik Kluba wrote:
>
> Hi!
>
> Does the preemptible RCU implementation have better performance (lower
> latency?) than the classic RCU implementation on embedded uniprocessor
> systems? I can't find any information about this in Documentation/.
I would expect that you would get the best latencies on UP by using
the -rt patchset and preemptible RCU. I don't know that anyone has
carefully measured the combination of vanilla CONFIG_PREEMPT kernel
and preemptible RCU on UP.
Thanx, Paul
prev parent reply other threads:[~2009-10-30 22:45 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-10-27 16:10 PREEMPT_RCU on UP Patrik Kluba
2009-10-30 22:45 ` Paul E. McKenney [this message]
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