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From: Andi Kleen <ak@linux.intel.com>
To: Mel Gorman <mgorman@suse.de>
Cc: Andi Kleen <andi@firstfloor.org>,
	akpm@linux-foundation.org, linux-mm@kvack.org
Subject: Re: [PATCH] mm: Print the correct method to disable automatic numa migration
Date: Thu, 11 Apr 2013 08:53:04 -0700	[thread overview]
Message-ID: <20130411155304.GK22166@tassilo.jf.intel.com> (raw)
In-Reply-To: <20130411141942.GL3710@suse.de>

> > > David has also already pointed out the problems with NO_NUMA vs -NUMA and
> > > the fact that the option only exists if CONFIG_SCHED_DEBUG which I agree
> > > is unfortunate. Ends up with this sort of mess
> > 
> > We just need the sysctl. Are you adding one or should I send
> > another patch with it?
> > 
> 
> I hadn't planned on it in the short term at least. Originally there was

I'll send a patch.

But are you taking care of the documentation of all the existing knobs?

I think if you had done that earlier you would have noticed
that the current situation is not very satisfying.

Writing documentation is one of the best ways we have
to sanitize user interfaces.

> revisited NUMA balancing a long time ago but too many bugs have been
> getting in the way.

That will likely make everything even worse.

-Andi

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  reply	other threads:[~2013-04-11 15:53 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-04-10 19:35 Andi Kleen
2013-04-10 21:15 ` David Rientjes
2013-04-10 21:26   ` Andi Kleen
2013-04-10 21:29     ` David Rientjes
2013-04-11 12:48 ` Mel Gorman
2013-04-11 14:04   ` Andi Kleen
2013-04-11 14:19     ` Mel Gorman
2013-04-11 15:53       ` Andi Kleen [this message]
2013-04-11 17:25         ` Mel Gorman
2013-04-11 17:39           ` Andi Kleen
2013-04-11 17:48             ` Mel Gorman

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