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From: Andi Kleen <andi@firstfloor.org>
To: Brice Goglin <Brice.Goglin@inria.fr>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
	Andi Kleen <andi@firstfloor.org>,
	Yinghai Lu <yhlu.kernel@gmail.com>,
	David Rientjes <rientjes@google.com>,
	Chris Worley <worleys@gmail.com>,
	linux-kernel@vger.kernel.org
Subject: Re: Off topic: Numactl "distance" wrong
Date: Tue, 7 Apr 2009 09:05:30 +0200	[thread overview]
Message-ID: <20090407070530.GJ17934@one.firstfloor.org> (raw)
In-Reply-To: <49DAF003.1070605@inria.fr>

> Well, some user-space application may use these distances
> to improve their binding.

I'm not aware of any that does. In general applications usually
only use the bare basics of NUMA API (if at all), the fancy stuff tends
to be more slideware.

If it's true then the correct place would be to fix the BIOS.

> Maybe nobody does yet because
> numa distances have never been available on x86_64 boxes...

That's an incorrect statement. There are x86-64 boxes which
report correct NUMA distances.

-Andi


  reply	other threads:[~2009-04-07  7:03 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-04-03 20:02 Off topic: Numactl "distance" wrong Chris Worley
2009-04-03 20:16 ` Brice Goglin
2009-04-03 20:49   ` Yinghai Lu
2009-04-03 21:01     ` Cliff Wickman
2009-04-03 21:43       ` Yinghai Lu
2009-04-03 21:24 ` Andi Kleen
2009-04-03 21:43   ` David Rientjes
2009-04-03 21:48     ` Yinghai Lu
2009-04-03 21:52       ` David Rientjes
2009-04-03 21:55       ` Andi Kleen
2009-04-03 22:15         ` Yinghai Lu
2009-04-07  2:52         ` KOSAKI Motohiro
2009-04-07  6:17           ` Brice Goglin
2009-04-07  7:05             ` Andi Kleen [this message]
2009-04-07  7:40               ` Brice Goglin
2009-04-07  7:56                 ` Andi Kleen
2009-04-07  7:44               ` David Rientjes
2009-04-07  7:59                 ` Andi Kleen
2009-04-07  8:08                   ` David Rientjes
2009-04-07  8:23                     ` Andi Kleen
2009-04-07  8:30                       ` David Rientjes
2009-04-07  9:13                         ` Andi Kleen
2009-04-03 21:53     ` Andi Kleen
2009-04-03 21:54       ` David Rientjes
2009-04-03 22:18         ` Yinghai Lu

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