netdev - Re: [RFC] export irq_set/get_affinity() for multiqueue network drivers

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Message-ID: <48B82E6E.2090603@hp.com>
Date:	Fri, 29 Aug 2008 10:14:22 -0700
From:	Rick Jones <rick.jones2@...com>
To:	Andi Kleen <andi@...stfloor.org>
CC:	Arjan van de Ven <arjan@...radead.org>,
	Brice Goglin <Brice.Goglin@...ia.fr>,
	LKML <linux-kernel@...r.kernel.org>, netdev@...r.kernel.org
Subject: Re: [RFC] export irq_set/get_affinity() for multiqueue network drivers

> Also I suspect handling SMT explicitely is a good idea. e.g. I would
> always set the affinity to all thread siblings in a core, not 
> just a single one, because context switch is very cheap between them.

That is true, but don't they also "compete" for pipeline resources?

rick jones
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