Re: [PATCH 1/3] Zone reclaim V3: main patch

From: Andi Kleen
Date: Thu Dec 08 2005 - 16:08:15 EST


> Zone reclaim is enabled if the maximum distance to another node is higher
> than RECLAIM_DISTANCE, which may be defined by an arch. By default
> RECLAIM_DISTANCE is 20 meaning the distance to another node in the
> same component (enclosure or motherboard).

Sorry I made a mistake here earlier. On checking the ACPI spec
again it's valid to have distances < 20 (e.g. for a 1.5 NUMA factor
it would be legally 15)

So better just check > LOCAL_DISTANCE, not >= 20.

Also a lot of Opteron BIOS get that wrong, but I'm adding some
sanity checking now so it should work in future.

-Andi
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/