From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: [PATCH net-next v2 0/5] bridge: per-vlan stats Date: Fri, 29 Apr 2016 15:33:26 -0400 (EDT) Message-ID: <20160429.153326.652947047579122837.davem@davemloft.net> References: <1461858771-4732-1-git-send-email-nikolay@cumulusnetworks.com> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org, roopa@cumulusnetworks.com, stephen@networkplumber.org, jhs@mojatatu.com To: nikolay@cumulusnetworks.com Return-path: Received: from shards.monkeyblade.net ([149.20.54.216]:55446 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752737AbcD2Td2 (ORCPT ); Fri, 29 Apr 2016 15:33:28 -0400 In-Reply-To: <1461858771-4732-1-git-send-email-nikolay@cumulusnetworks.com> Sender: netdev-owner@vger.kernel.org List-ID: From: Nikolay Aleksandrov Date: Thu, 28 Apr 2016 17:52:46 +0200 > This set adds support for bridge per-vlan statistics. Between the counter bumps in fast paths and new levels of pointer indirection in order to RCU things, I have to agree with Stephen that this new overhead is really pushing it. All of this new overhead contributes to the transactional overhead for every single packet. Sorry I'm not going to apply this for now, unless you can come up with something significantly cheaper. Thanks.