From: Eric Dumazet <eric.dumazet@gmail.com>
To: Yafang Shao <laoar.shao@gmail.com>,
Eric Dumazet <eric.dumazet@gmail.com>
Cc: David Miller <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
netdev <netdev@vger.kernel.org>,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH net-next] tcp: add SNMP counter for the number of packets pruned from ofo queue
Date: Wed, 25 Jul 2018 06:55:20 -0700 [thread overview]
Message-ID: <096a8a2f-ea32-2107-b2af-c246450cc3b9@gmail.com> (raw)
In-Reply-To: <CALOAHbCC=oWgzcA=VhkXq0rVLBa5_TvtbKtTqESGrgxvYTtH6w@mail.gmail.com>
On 07/25/2018 06:40 AM, Yafang Shao wrote:
>
> Because we want to know why packets were dropped.
> If that could be show in netstat, we could easily find that it is
> dropped due to ofo prune.
We have a counter already for these events : LINUX_MIB_OFOPRUNED
You want to add another counter tracking number of _skbs_,
which has no precise value for user,
given each skb can contain a variable number of _packets_.
next prev parent reply other threads:[~2018-07-25 13:55 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-25 13:06 [PATCH net-next] tcp: add SNMP counter for the number of packets pruned from ofo queue Yafang Shao
2018-07-25 13:33 ` Eric Dumazet
2018-07-25 13:40 ` Yafang Shao
2018-07-25 13:55 ` Eric Dumazet [this message]
2018-07-25 13:59 ` Yafang Shao
2018-07-26 1:42 ` Yafang Shao
2018-07-26 4:06 ` Eric Dumazet
2018-07-26 4:31 ` Yafang Shao
2018-07-26 4:36 ` Eric Dumazet
2018-07-26 4:42 ` Yafang Shao
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