[discuss] Re: [LinuxBIOS] NUMA support for dual core Opteron

Andi Kleen ak at suse.de
Thu Jul 14 20:48:21 CEST 2005

> AFIAK, for x86_64 kernel, it will try to read NUMA configuration from
> HW directory. We don't have to export any ACPI table.

It doesn't work for dual core or 8 sockets for some reason. Since the SRAT
code works fine and is in general more future proof we never tracked down 
why. Patches welcome. 

However you'll likely need ACPI for other reasons anyways, e.g. for
better power saving.


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