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SubjectRe: Off topic: Numactl "distance" wrong
On Fri, 3 Apr 2009, Yinghai Lu wrote:

> acpi_numa_slit_init() in srat_64.c will have one copy (called
> acpi_slit) of SLIT, if there is SLIT from ACPI.
>
> so if numa is enabled, could expose that acpi_slit via sysfs for the
> user to update it.
>

Yeah, but in what format do you expect the user to update it? There is no
ACPI requirement that all nodes that have a remote distance of 20 to node
0, for instance, are local to themselves.

So you'll have to report the entire physical topology in one write to a
sysfs interface. We don't currently have such a format unless we are to
allow updating of the pxms.


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