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SubjectRe: [PATCH] add scheduler domains for ia64

* Jesse Barnes <> wrote:

> This patch adds some more NUMA specific logic to the creation of
> scheduler domains. Domains spanning all CPUs in a large system are
> too large to schedule across efficiently, leading to livelocks and
> inordinate amounts of time being spent in scheduler routines. With
> this patch applied, the node scheduling domains for NUMA platforms
> will only contain a specified number of nearby CPUs, based on the
> value of SD_NODES_PER_DOMAIN. It also allows arches to override
> SD_NODE_INIT, which sets the domain scheduling parameters for each
> node's domain. This is necessary especially for large systems.

looks good to me too.

Signed-off-by: Ingo Molnar <>

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