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From: Rick Jones <rick.jones2@hp.com>
To: Andi Kleen <andi@firstfloor.org>
Cc: Arjan van de Ven <arjan@infradead.org>,
	Brice Goglin <Brice.Goglin@inria.fr>,
	LKML <linux-kernel@vger.kernel.org>,
	netdev@vger.kernel.org
Subject: Re: [RFC] export irq_set/get_affinity() for multiqueue network drivers
Date: Fri, 29 Aug 2008 10:14:22 -0700	[thread overview]
Message-ID: <48B82E6E.2090603@hp.com> (raw)
In-Reply-To: <8763pjpy2b.fsf@basil.nowhere.org>

> 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

      parent reply	other threads:[~2008-08-29 17:14 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-08-28 20:21 [RFC] export irq_set/get_affinity() for multiqueue network drivers Brice Goglin
2008-08-28 20:56 ` David Miller
2008-08-29  7:08   ` Brice Goglin
2008-08-29 12:50 ` Arjan van de Ven
2008-08-29 16:48   ` Andi Kleen
2008-08-29 16:52     ` Arjan van de Ven
2008-08-29 17:14     ` Rick Jones [this message]

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