From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pablo Neira Ayuso Subject: Re: [PATCH 2/2 net-next] net: move qdisc ingress filtering code where it belongs Date: Sun, 10 May 2015 21:20:44 +0200 Message-ID: <20150510192044.GA7173@salvia> References: <1431277170-4618-1-git-send-email-pablo@netfilter.org> <1431277170-4618-3-git-send-email-pablo@netfilter.org> <554F9946.9040707@plumgrid.com> <20150510175934.GA3799@salvia> <554F9DE8.3000507@plumgrid.com> <20150510182414.GA4198@salvia> <554FA7A5.5020400@plumgrid.com> <20150510190039.GA4938@salvia> <554FAC3A.40701@plumgrid.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: netdev@vger.kernel.org, davem@davemloft.net, jhs@mojatatu.com, daniel@iogearbox.net To: Alexei Starovoitov Return-path: Received: from mail.us.es ([193.147.175.20]:51638 "EHLO mail.us.es" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751743AbbEJTP7 (ORCPT ); Sun, 10 May 2015 15:15:59 -0400 Content-Disposition: inline In-Reply-To: <554FAC3A.40701@plumgrid.com> Sender: netdev-owner@vger.kernel.org List-ID: 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.