Re: [net-next, RFC, 4/8] net: core: add recycle capabilities on skbs via page_pool API

[Eric Dumazet]

On 12/08/2018 04:29 AM, Eric Dumazet wrote:
> 

> But I do not get why the patch is needed.
> 
> Adding extra cost for each skb destruction is costly.
> 
> I though XDP was all about _not_ having skbs.
> 
> Please let's do not slow down the non XDP stack only to make XDP more 
> appealing.
> 

I have a similar concern with napi_consume_skb() :

This added a cost for locally generated TCP traffic, since most TX packets are 
fast clones.