Subject: Re: [PATCH 2/2 net-next] net: move qdisc ingress filtering code where it belongs

From: Pablo Neira Ayuso <[email-masked]>
Date: Sun, 10 May 2015 21:20:44 +0200

On Sun, May 10, 2015 at 12:06:34PM -0700, Alexei Starovoitov wrote:
> On 5/10/15 12:00 PM, Pablo Neira Ayuso wrote:
> >
> >The inlined code into the ingress core path seems to have an impact to
> >people that don't need this, even with the static key.
> 
> two emails ago you've accused me of non-technical comments and
> now I've posted real numbers that show no impact on users that don't
> enable ingress and you still say 'seems to have an impact' ?!
> I'm speechless.

No. On the danger of repeating myself: The existing approach that
inlines handle_ing() into __netif_receive_skb_core(), and your
approach since it's persists on that, has an impact in performance on
everyone in the earth.

It's quite clear from my patchset description.