Date: Fri, 29 Aug 2008 05:50:23 -0700
From: Arjan van de Ven <arjan@infradead.org>
To: Brice Goglin <Brice.Goglin@inria.fr>
Cc: LKML <linux-kernel@vger.kernel.org>, netdev@vger.kernel.org
Subject: Re: [RFC] export irq_set/get_affinity() for multiqueue network
 drivers
Message-ID: <20080829055023.07966b4a@infradead.org>
In-Reply-To: <48B708E1.4070001@inria.fr>
References: <48B708E1.4070001@inria.fr>
Organization: Intel
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On Thu, 28 Aug 2008 22:21:53 +0200
Brice Goglin <Brice.Goglin@inria.fr> wrote:

> Hello,
> 
> Is there any way to setup IRQ masks from within a driver? myri10ge
> currently relies on an external script (writing in
> /proc/irq/*/smp_affinity) to bind each queue/MSI-X to a different
> processor. By default, Linux will either:
> * round-robin the interrupts (killing the benefit of DCA for instance)
> * put all IRQs on the same CPU (killing much of th

* do the right thing with the userspace irq balancer

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