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To: "Brian D. McGrew" <brian@visionpro.com>
Cc: <linux-kernel@vger.kernel.org>
Subject: Re: Binding a thread (or specific process) to a designated CPU
References: <14CFC56C96D8554AA0B8969DB825FEA096FF8B@chicken.machinevisionproducts.com>
From: Douglas McNaught <doug@mcnaught.org>
Date: Mon, 22 Aug 2005 18:25:05 -0400
In-Reply-To: <14CFC56C96D8554AA0B8969DB825FEA096FF8B@chicken.machinevisionproducts.com> (Brian D. McGrew's message of "Mon, 22 Aug 2005 14:56:47 -0700")
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"Brian D. McGrew" <brian@visionpro.com> writes:

> Good morning,
>
> Using FC3 or FC4 with the 2.6.9 or later kernel, we're looking for a way
> to bind a thread (or an entire process) to a designated CPU.  We're
> using dual processor systems as well as P4 with HT and Xeons so all of
> our boxes either have two CPU's or 'appear' to have two.
>
> I want to be able, in my C++ code to designate a specific thread to a
> specific processor.  I've heard rumors that with the 2.6 kernel this is
> now possible???

Look into sched_setaffinity() and friends.

-Doug