linux-kernel - Re: [PATCH 0/1] RFC: poll/select performance on datagram sockets

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Message-ID: <1288390092.2680.80.camel@edumazet-laptop>
Date:	Sat, 30 Oct 2010 00:08:12 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Davide Libenzi <davidel@...ilserver.org>
Cc:	Alban Crequy <alban.crequy@...labora.co.uk>,
	"David S. Miller" <davem@...emloft.net>,
	Stephen Hemminger <shemminger@...tta.com>,
	Cyrill Gorcunov <gorcunov@...nvz.org>,
	Alexey Dobriyan <adobriyan@...il.com>, netdev@...r.kernel.org,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Pauli Nieminen <pauli.nieminen@...labora.co.uk>,
	Rainer Weikusat <rweikusat@...gmbh.com>
Subject: Re: [PATCH 0/1] RFC: poll/select performance on datagram sockets

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.



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