Re: [PATCH net-next] tcp: add SNMP counter for the number of packets pruned from ofo queue

From: Eric Dumazet
Date: Wed Jul 25 2018 - 09:55:25 EST




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_.