netdev - Re: Why my NIC shows NUMA -1?

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Message-ID: <CAK3+h2w_neDt9rX5e90Sn8np993_XjPSDWy+YgnrDUhQcE+uuA@mail.gmail.com>
Date:	Wed, 11 Nov 2015 16:21:46 -0800
From:	Vincent Li <vincent.mc.li@...il.com>
To:	Alexander Duyck <alexander.duyck@...il.com>
Cc:	"netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: Re: Why my NIC shows NUMA -1?

Yes PowerEdge R710 is Nehalem based Intel system. thank you for the answer

On Wed, Nov 11, 2015 at 3:25 PM, Alexander Duyck
<alexander.duyck@...il.com> wrote:
> On 11/11/2015 02:41 PM, Vincent Li wrote:
>>
>> Hi
>>
>> Sorry I am not sure if this is the right list to ask this question,
>> please direct me to the correct one. thanks!
>>
>> I am using Intel 82599 on Dell PowerEdge R710 which should support
>> NUMA node, the box is running ubuntu 14.01.1 LTS , I am wondering why I
>> get NUMA socket -1.
>
>
> The PowerEdge R710 is an older Nehalem based Intel system isn't it? Those
> didn't have the PCIe controller built into the socket.  As such what you may
> have is both sockets hanging off of one I/O Hub and if that is the case the
> PCIe device is the same distance from either socket.  In that case it would
> be correct for it to report -1 since either socket is the same distance.
>
> - Alex
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