linux-kernel - Re: Purpose of numa

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Message-ID: <p73zlum48uk.fsf@bingen.suse.de>
Date:	Thu, 31 Jan 2008 10:56:03 +0100
From:	Andi Kleen <andi@...stfloor.org>
To:	Paul Mundt <lethal@...ux-sh.org>
Cc:	Chris Snook <csnook@...hat.com>, linux-kernel@...r.kernel.org
Subject: Re: Purpose of numa_node?

Paul Mundt <lethal@...ux-sh.org> writes:
>
> The in-kernel use looks perfectly sane in that regard, though I'm not
> sure what the point of exporting this as a RO attribute to userspace is.
> Presumably someone has a tool somewhere that cares about this.

The idea was to allow e.g. NUMA aware irqbalanced that directs the interrupts
on the same node as the device is connected to. Don't know if it was
ever actually implemented.

-Andi

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