Re: [PATCH 3/7] mm: page_alloc: Use zone node IDs to approximatelocality

[Rik van Riel]

On 12/13/2013 09:10 AM, Mel Gorman wrote:
> zone_local is using node_distance which is a more expensive call than
> necessary. On x86, it's another function call in the allocator fast path
> and increases cache footprint. This patch makes the assumption zones on a
> local node will share the same node ID. The necessary information should
> already be cache hot.
> 
> Signed-off-by: Mel Gorman <mgorman@xxxxxxx>

Acked-by: Rik van Riel <riel@xxxxxxxxxx>

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