linux-kernel - Re: [PATCH] numa,sched: only consider less busy nodes as numa balancing destination

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Date:	Tue, 12 May 2015 16:50:10 +0300
From:	Artem Bityutskiy <dedekind1@...il.com>
To:	Rik van Riel <riel@...hat.com>
Cc:	linux-kernel@...r.kernel.org, mgorman@...e.de,
	peterz@...radead.org, jhladky@...hat.com
Subject: Re: [PATCH] numa,sched: only consider less busy nodes as numa
 balancing destination

On Fri, 2015-05-08 at 16:03 -0400, Rik van Riel wrote:
> Currently the load balancer has a preference for moving
> tasks to their preferred nodes (NUMA_FAVOUR_HIGHER, true),
> but there is no resistance to moving tasks away from their
> preferred nodes (NUMA_RESIST_LOWER, false).  That setting
> was arrived at after a fair amount of experimenting, and
> is probably correct.

FYI, (NUMA_RESIST_LOWER, true) does not make any difference for me.


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