| Date | Mon, 16 Dec 2013 08:20:08 -0500 | From | Rik van Riel <> | Subject | Re: [PATCH 3/7] mm: page_alloc: Use zone node IDs to approximate locality |
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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@suse.de>
Acked-by: Rik van Riel <riel@redhat.com>
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