netdev - Re: [PATCH net-next] tcp: replace LINUX_MIB_TCPOFODROP with LINUX_MIB_TCPRMEMFULLDROP for drops due to receive buffer full

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Message-ID: <CALOAHbCRJWThE6oLH0m9ZV8xRMMCaZFM68eSGcm8awRbCLqOsw@mail.gmail.com>
Date:   Wed, 27 Jun 2018 23:38:02 +0800
From:   Yafang Shao <laoar.shao@...il.com>
To:     Eric Dumazet <eric.dumazet@...il.com>
Cc:     Eric Dumazet <edumazet@...gle.com>,
        David Miller <davem@...emloft.net>,
        netdev <netdev@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH net-next] tcp: replace LINUX_MIB_TCPOFODROP with
 LINUX_MIB_TCPRMEMFULLDROP for drops due to receive buffer full

On Wed, Jun 27, 2018 at 11:27 PM, Eric Dumazet <eric.dumazet@...il.com> wrote:
>
>
> On 06/27/2018 08:14 AM, Yafang Shao wrote:
>
>> Got it!
>>
>> What about introduce a new counter, i.e. TCPRcvQFullDrop ?
>
> tcp_try_rmem_schedule() can fail for many different reasons,
> not related to how occupied the socket receive queue is.

Yes. So TCPRcvQDrop would be more specific ?

Thanks
Yafang