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Message-ID: <1326101456.2442.40.camel@twins>
Subject: Re: [PATCH v6 0/8] Reduce cross CPU IPI interference
From: Peter Zijlstra <a.p.zijlstra@chello.nl>
To: Gilad Ben-Yossef <gilad@benyossef.com>
Cc: linux-kernel@vger.kernel.org, Christoph Lameter <cl@linux.com>,
        Chris Metcalf <cmetcalf@tilera.com>,
        Frederic Weisbecker <fweisbec@gmail.com>, linux-mm@kvack.org,
        Pekka Enberg <penberg@kernel.org>, Matt Mackall <mpm@selenic.com>,
        Sasha Levin <levinsasha928@gmail.com>, Rik van Riel <riel@redhat.com>,
        Andi Kleen <andi@firstfloor.org>, Mel Gorman <mel@csn.ul.ie>,
        Andrew Morton <akpm@linux-foundation.org>,
        Alexander Viro <viro@zeniv.linux.org.uk>, Avi Kivity <avi@redhat.com>,
        Michal Nazarewicz <mina86@mina86.org>,
        Kosaki Motohiro <kosaki.motohiro@gmail.com>
Date: Mon, 09 Jan 2012 10:30:56 +0100
In-Reply-To: <1326040026-7285-1-git-send-email-gilad@benyossef.com>
References: <y> <1326040026-7285-1-git-send-email-gilad@benyossef.com>
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On Sun, 2012-01-08 at 18:26 +0200, Gilad Ben-Yossef wrote:
> Still, kernel code will some time interrupt all CPUs in the system via IPIs
> for various needs. These IPIs are useful and cannot be avoided altogether,
> but in certain cases it is possible to interrupt only specific CPUs that
> have useful work to do and not the entire system. 

1-7

Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>