From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: [net-next, RFC, 4/8] net: core: add recycle capabilities on skbs via page_pool API Date: Sat, 08 Dec 2018 12:10:32 -0800 (PST) Message-ID: <20181208.121032.961750024545773643.davem@davemloft.net> References: <154413874729.21735.10644578158550468689.stgit@firesoul> <20181208095758.GA32028@strlen.de> <20181208123610.7990e85d@redhat.com> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: fw@strlen.de, netdev@vger.kernel.org, toke@toke.dk, ard.biesheuvel@linaro.org, jasowang@redhat.com, ilias.apalodimas@linaro.org, bjorn.topel@intel.com, w@1wt.eu, saeedm@mellanox.com, mykyta.iziumtsev@gmail.com, borkmann@iogearbox.net, alexei.starovoitov@gmail.com, tariqt@mellanox.com To: brouer@redhat.com Return-path: Received: from shards.monkeyblade.net ([23.128.96.9]:57656 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726181AbeLHUKg (ORCPT ); Sat, 8 Dec 2018 15:10:36 -0500 In-Reply-To: <20181208123610.7990e85d@redhat.com> Sender: netdev-owner@vger.kernel.org List-ID: From: Jesper Dangaard Brouer Date: Sat, 8 Dec 2018 12:36:10 +0100 > The annoying part is actually that depending on the kernel config > options CONFIG_XFRM, CONFIG_NF_CONNTRACK and CONFIG_BRIDGE_NETFILTER, > whether there is a cache-line split, where mem_info gets moved into the > next cacheline. Note that Florian Westphal's work (trying to help MP-TCP) would eliminate this variability.