From: Mel Gorman <mgorman@suse.de>
To: Anton Blanchard <anton@samba.org>
Cc: linux-mm@kvack.org
Subject: Re: /proc/pid/numa_maps no longer shows "default" policy
Date: Thu, 30 Jan 2014 09:08:02 +0000 [thread overview]
Message-ID: <20140130090802.GH6732@suse.de> (raw)
In-Reply-To: <20140130173457.115a30f8@kryten>
On Thu, Jan 30, 2014 at 05:34:57PM +1100, Anton Blanchard wrote:
>
> Hi Mel,
>
> We recently noticed that /proc/pid/numa_maps used to show default
> policy mappings as such:
>
> cat /proc/self/numa_maps
> 00100000 default mapped=1 mapmax=339 active=0 N0=1
>
> But now it shows them as prefer:X:
>
> cat /proc/self/numa_maps
> 10000000 prefer:1 file=/usr/bin/cat mapped=1 N0=1
>
> It looks like this was caused by 5606e387 (mm: numa: Migrate on
> reference policy). I'm not sure if this is expected, but we don't have
> CONFIG_NUMA_BALANCING enabled on ppc64 so I wasn't expecting processes
> to have a particular node affinity by default.
>
https://lkml.org/lkml/2014/1/25/182
--
Mel Gorman
SUSE Labs
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prev parent reply other threads:[~2014-01-30 9:08 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-01-30 6:34 /proc/pid/numa_maps no longer shows "default" policy Anton Blanchard
2014-01-30 9:08 ` Mel Gorman [this message]
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