Re: [PATCH 1/7] sched,numa: use group's max nid as task's preferred nid

[Mel Gorman]

On Mon, Jun 23, 2014 at 11:41:29AM -0400, riel@xxxxxxxxxx wrote:
> From: Rik van Riel <riel@xxxxxxxxxx>
> 
> From task_numa_placement, always try to consolidate the tasks
> in a group on the group's top nid.
> 
> In case this task is part of a group that is interleaved over
> multiple nodes, task_numa_migrate will set the task's preferred
> nid to the best node it could find for the task, so this patch
> will cause at most one run through task_numa_migrate.
> 
> Signed-off-by: Rik van Riel <riel@xxxxxxxxxx>

That loop was written prior to pseudo-interleaving as well and in the
context of that change this makes sense and removes a potentially
expensive loop.

Acked-by: Mel Gorman <mgorman@xxxxxxx>

-- 
Mel Gorman
SUSE Labs
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