linux-kernel - Re: NMI watchdog triggering during load

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Message-ID: <54F9C3F1.9000902@oracle.com>
Date:	Fri, 06 Mar 2015 08:12:49 -0700
From:	David Ahern <david.ahern@...cle.com>
To:	Peter Zijlstra <peterz@...radead.org>
CC:	Mike Galbraith <efault@....de>, Ingo Molnar <mingo@...nel.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: NMI watchdog triggering during load_balance

On 3/6/15 2:12 AM, Peter Zijlstra wrote:
> On Thu, Mar 05, 2015 at 09:05:28PM -0700, David Ahern wrote:
>> Socket(s):             32
>> NUMA node(s):          4
>
> Urgh, with 32 'cpus' per socket, you still do _8_ sockets per node, for
> a total of 256 cpus per node.

Per the response to Mike, the system has 4 physical cpus. Each cpu has 
32 cores with 8 threads per core and 4 memory controllers (one mcu per 8 
cores). Yes there are 256 logical cpus per node.

David
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