From mboxrd@z Thu Jan 1 00:00:00 1970 From: Marcelo Ricardo Leitner Subject: Re: [PATCH net-next,v3 00/12] add flow_rule infrastructure Date: Thu, 22 Nov 2018 14:22:20 -0200 Message-ID: <20181122162220.GB8353@localhost.localdomain> References: <20181121025132.14305-1-pablo@netfilter.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: netdev@vger.kernel.org, davem@davemloft.net, thomas.lendacky@amd.com, f.fainelli@gmail.com, ariel.elior@cavium.com, michael.chan@broadcom.com, santosh@chelsio.com, madalin.bucur@nxp.com, yisen.zhuang@huawei.com, salil.mehta@huawei.com, jeffrey.t.kirsher@intel.com, tariqt@mellanox.com, saeedm@mellanox.com, jiri@mellanox.com, idosch@mellanox.com, jakub.kicinski@netronome.com, peppe.cavallaro@st.com, grygorii.strashko@ti.com, andrew@lunn.ch, vivien.didelot@savoirfairelinux.com, alexandre.torgue@st.com, joabreu@synopsys.com, linux-net-drivers@solarflare.com, ganeshgr@chelsio.com, ogerlitz@mellanox.com, Manish.Chopra@cavium.com To: Pablo Neira Ayuso Return-path: Received: from mail-qk1-f195.google.com ([209.85.222.195]:33478 "EHLO mail-qk1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2405934AbeKWDC2 (ORCPT ); Thu, 22 Nov 2018 22:02:28 -0500 Received: by mail-qk1-f195.google.com with SMTP id o89so7176215qko.0 for ; Thu, 22 Nov 2018 08:22:24 -0800 (PST) Content-Disposition: inline In-Reply-To: <20181121025132.14305-1-pablo@netfilter.org> Sender: netdev-owner@vger.kernel.org List-ID: On Wed, Nov 21, 2018 at 03:51:20AM +0100, Pablo Neira Ayuso wrote: > Hi, > > This patchset is the third iteration [1] [2] [3] to introduce a kernel > intermediate (IR) to express ACL hardware offloads. On v2 cover letter you had: """ However, cost of this layer is very small, adding 1 million rules via tc -batch, perf shows: 0.06% tc [kernel.vmlinux] [k] tc_setup_flow_action """ The above doesn't include time spent on children calls and I'm worried about the new allocation done by flow_rule_alloc(), as it can impact rule insertion rate. I'll run some tests here and report back.