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From: Andi Kleen <ak@muc.de>
To: "Martin J. Bligh" <mbligh@aracnet.com>
Cc: brettspamacct@fastclick.com, linux-kernel@vger.kernel.org
Subject: Re: How can I optimize a process on a NUMA architecture(x86-64 specifically)?
Date: Fri, 21 May 2004 21:17:11 +0200	[thread overview]
Message-ID: <m3pt8xd1zc.fsf@averell.firstfloor.org> (raw)
In-Reply-To: <1YmjP-4jX-37@gated-at.bofh.it> (Martin J. Bligh's message of "Fri, 21 May 2004 19:50:13 +0200")

"Martin J. Bligh" <mbligh@aracnet.com> writes:

> There is no such thing as a homenode. What you describe is more or less why
> we ditched that concept.

numa api has a "prefered node", which is a bit similar to the old
home node. The main difference is that it does not affect the scheduler,
only the memory allocation. You can of course affect the scheduler too,
but that's a separate option now and more strict.

For historical reasons numactl still has a --homenode= alias for --prefered,
although it is undocumented and discouraged now.

-Andi


       reply	other threads:[~2004-05-21 23:02 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <1Y6yr-eM-11@gated-at.bofh.it>
     [not found] ` <1YbRm-4iF-11@gated-at.bofh.it>
     [not found]   ` <1Yma3-4cF-3@gated-at.bofh.it>
     [not found]     ` <1YmjP-4jX-37@gated-at.bofh.it>
2004-05-21 19:17       ` Andi Kleen [this message]
     [not found]       ` <1YmMN-4Kh-17@gated-at.bofh.it>
     [not found]         ` <1Yn67-50q-7@gated-at.bofh.it>
2004-05-21 19:19           ` How can I optimize a process on a NUMA architecture(x86-64 specifically)? Andi Kleen
2004-05-21 20:32             ` Martin J. Bligh
2004-05-21 23:42               ` Brett E.
2004-05-22  6:13                 ` Martin J. Bligh
2004-05-22  7:41                   ` Andi Kleen
2004-05-23  0:28                 ` Bryan O'Sullivan
2004-05-23 14:28                   ` Andi Kleen
2004-05-24 22:00                     ` Andrew Theurer
2004-05-25  0:27                       ` Scott Robert Ladd
2004-05-25  1:09                       ` Brett E.
     [not found]     ` <1YRnC-3vk-5@gated-at.bofh.it>
2004-05-23 11:57       ` Andi Kleen
2004-05-21  0:51 Brett E.
2004-05-21  1:29 ` Jesse Barnes
2004-05-21  6:37 ` Martin J. Bligh
2004-05-21 17:27   ` Brett E.
2004-05-21 17:46     ` Martin J. Bligh
2004-05-21 18:14       ` Brett E.
2004-05-21 18:30         ` Martin J. Bligh
2004-05-21 18:58         ` Jesse Barnes
2004-05-21 19:08           ` Martin J. Bligh
2004-05-23  2:49     ` David Schwartz

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