netdev - Re: [PATCH net-next v2 1/1] driver: veth: Refine the statistics codes of veth driver

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Message-ID: <CA+6hz4r_9CPirG5H5QBgpzeE0Coee34RNmAr6jqW1vt3s4YDMg@mail.gmail.com>
Date:   Thu, 3 Nov 2016 23:13:00 +0800
From:   Gao Feng <fgao@...ai8.com>
To:     Eric Dumazet <eric.dumazet@...il.com>
Cc:     "David S. Miller" <davem@...emloft.net>,
        Cong Wang <cwang@...pensource.com>,
        Vijay Pandurangan <vijayp@...ayp.ca>,
        Evan Jones <ej@...njones.ca>, pabeni@...hat.com,
        Linux Kernel Network Developers <netdev@...r.kernel.org>
Subject: Re: [PATCH net-next v2 1/1] driver: veth: Refine the statistics codes
 of veth driver

Hi Eric,

On Thu, Nov 3, 2016 at 11:07 PM, Eric Dumazet <eric.dumazet@...il.com> wrote:
> On Thu, 2016-11-03 at 22:38 +0800, Gao Feng wrote:
>
>> Because other net devices put the statistics together.
>> Take tun/tap as example, it is a virtual device, but its all
>> statistics are percpu including dropped.
>
> Take a look at 2681128f0ced8aa4e66f221197e183cc16d244fe
> ("veth: reduce stat overhead")
>
> Feel free to fix tun/tap, not bloat veth and undo my work,
> without knowing why it was done this way.
>
> Thanks.
>
>

Thanks your detail explanations.

Best Regards
Feng