linux-kernel - 3.1-rc2: CONFIG

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Message-ID: <alpine.DEB.2.02.1108180649040.10458@p34.internal.lan>
Date:	Thu, 18 Aug 2011 06:51:40 -0400 (EDT)
From:	Justin Piszcz <jpiszcz@...idpixels.com>
To:	linux-kernel@...r.kernel.org
cc:	linux-numa@...r.kernel.org, Alan Piszcz <ap@...arrain.com>
Subject: 3.1-rc2: CONFIG_NUMA Question

Hi,

I have a SuperMicro X8DTH-6F motherboard with 2 cpus it has NUMA options 
in the BIOS; what parameters/should I be using for the NUMA options in the 
kernel?

   | |    [*] Numa Memory Allocation and Scheduler Support                 | |
   | |    [ ] Old style AMD Opteron NUMA detection                         | |
   | |    [*] ACPI NUMA detection                                          | |
   | |    [ ] NUMA emulation                                               | |
   | |    (6) Maximum NUMA Nodes (as a power of 2)                         | |

Specifically, the maximum number of NUMA nodes?  Will this help to 
increase performance of large memory allocations/is there any downside
to enabling this feature?

Justin.

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