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From: Brice Goglin <brice.goglin@gmail.com>
To: Dave Hansen <dave@sr71.net>, linux-kernel@vger.kernel.org
Cc: dave.hansen@linux.intel.com, a.p.zijlstra@chello.nl,
	mingo@kernel.org, hpa@linux.intel.com, bp@alien8.de
Subject: Re: [PATCH] x86: new topology for multi-NUMA-node CPUs
Date: Sun, 21 Sep 2014 19:56:25 +0200	[thread overview]
Message-ID: <541F1149.5060208@gmail.com> (raw)
In-Reply-To: <20140918193334.C065EBCE@viggo.jf.intel.com>

Le 18/09/2014 21:33, Dave Hansen a écrit :
> After this set, there are only 2 sets of core siblings, which
> is what we expect for a 2-socket system.
>
> # cat cpu*/topology/physical_package_id | sort | uniq -c
>      18 0
>      18 1
> # cat cpu*/topology/core_siblings_list | sort | uniq -c
>      18 0-17
>      18 18-35
>

Thanks a lot for working on this. I can't comment on the code but at
least the above core_siblings values should fix the original problem
observed with hwloc. I don't have a E5 v3 to test but installing the
hwloc package and running lstopo should confirm that it now sees a
single socket per group of 2 NUMA nodes as expected.

Brice


  parent reply	other threads:[~2014-09-21 17:56 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-09-18 19:33 [PATCH] x86: new topology for multi-NUMA-node CPUs Dave Hansen
2014-09-18 20:49 ` Peter Zijlstra
2014-09-18 21:57 ` Dave Hansen
2014-09-19 11:45 ` Karel Zak
2014-09-19 18:15   ` Dave Hansen
2014-09-22  7:43     ` Karel Zak
2014-09-21 17:56 ` Brice Goglin [this message]
2014-09-24 14:58 ` [tip:sched/core] x86, sched: Add " tip-bot for Dave Hansen

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