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Subject: Re: [PATCH 0/1] RFC: poll/select performance on datagram sockets
From: Eric Dumazet <eric.dumazet@gmail.com>
To: Davide Libenzi <davidel@xmailserver.org>
Cc: Alban Crequy <alban.crequy@collabora.co.uk>,
        "David S. Miller" <davem@davemloft.net>,
        Stephen Hemminger <shemminger@vyatta.com>,
        Cyrill Gorcunov <gorcunov@openvz.org>,
        Alexey Dobriyan <adobriyan@gmail.com>, netdev@vger.kernel.org,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Pauli Nieminen <pauli.nieminen@collabora.co.uk>,
        Rainer Weikusat <rweikusat@mssgmbh.com>
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Date: Sat, 30 Oct 2010 00:08:12 +0200
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Le vendredi 29 octobre 2010 à 14:57 -0700, Davide Libenzi a écrit :

> It is, though I am not sure that shuffling code around to chase false 
> sharing on very specific cases, is an approach worth following.
> The new position of the table on the stack might share with another hot 
> line, under a different load.
> 

Sure. Its only a start as I said. We should identify the shared portion
and make sure it sits in a dedicated cache line.