From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 57B87C433FE for ; Wed, 2 Mar 2022 01:40:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238945AbiCBBk4 (ORCPT ); Tue, 1 Mar 2022 20:40:56 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54094 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238948AbiCBBkz (ORCPT ); Tue, 1 Mar 2022 20:40:55 -0500 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BF2C5A1BFC for ; Tue, 1 Mar 2022 17:40:12 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 7CA53B81EE5 for ; Wed, 2 Mar 2022 01:40:11 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPS id 1D669C340F3; Wed, 2 Mar 2022 01:40:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1646185210; bh=1PDqjj33t77L84HE52AssX5xiw7Mea5p56YLu/Fe/34=; h=Subject:From:Date:References:In-Reply-To:To:Cc:From; b=CbyeOaI/HNJeysfPPQmMNttLUiHbaCUAS2UWyFgWYL4CxZS7oTCIDTEmWq6P6QIFx kd18kZmdGBJwFi3lkM6ZhZ1CV4h+5tXHgGvhqFcNeubpP+nHhLvTaa+N1rBhoFMPBU zuVoBgC8vQDvRUw1UD8ScUt8stXEbe4bmnSFuOca1LHM+1XMGfcG+uBpdOgzi3wqkJ q5M/WXnki7pVNCBLpdlt63+kEA1AYJ/hfT7XfbzSsbO3x3d/dizTxIiOUHaY+wt0hi byQN0dPFedVr4FMEKwWfFU2O6xswdhM/rGrPDgeKasN0i2NCogVZGNL/dL6ss732dY XyVxfbkRm7RXg== Received: from aws-us-west-2-korg-oddjob-1.ci.codeaurora.org (localhost.localdomain [127.0.0.1]) by aws-us-west-2-korg-oddjob-1.ci.codeaurora.org (Postfix) with ESMTP id F2C37E6D4BB; Wed, 2 Mar 2022 01:40:09 +0000 (UTC) Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: Re: [PATCH v2 net-next 0/2] sfc: optimize RXQs count and affinities From: patchwork-bot+netdevbpf@kernel.org Message-Id: <164618520999.21891.9258441569559448008.git-patchwork-notify@kernel.org> Date: Wed, 02 Mar 2022 01:40:09 +0000 References: <20220228132254.25787-1-ihuguet@redhat.com> In-Reply-To: <20220228132254.25787-1-ihuguet@redhat.com> To: =?utf-8?b?w43DsWlnbyBIdWd1ZXQgPGlodWd1ZXRAcmVkaGF0LmNvbT4=?=@ci.codeaurora.org Cc: ecree.xilinx@gmail.com, habetsm.xilinx@gmail.com, davem@davemloft.net, kuba@kernel.org, netdev@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Hello: This series was applied to netdev/net-next.git (master) by Jakub Kicinski : On Mon, 28 Feb 2022 14:22:52 +0100 you wrote: > In sfc driver one RX queue per physical core was allocated by default. > Later on, IRQ affinities were set spreading the IRQs in all NUMA local > CPUs. > > However, with that default configuration it result in a non very optimal > configuration in many modern systems. Specifically, in systems with hyper > threading and 2 NUMA nodes, affinities are set in a way that IRQs are > handled by all logical cores of one same NUMA node. Handling IRQs from > both hyper threading siblings has no benefit, and setting affinities to one > queue per physical core is neither a very good idea because there is a > performance penalty for moving data across nodes (I was able to check it > with some XDP tests using pktgen). > > [...] Here is the summary with links: - [v2,net-next,1/2] sfc: default config to 1 channel/core in local NUMA node only (no matching commit) - [v2,net-next,2/2] sfc: set affinity hints in local NUMA node only https://git.kernel.org/netdev/net-next/c/09a99ab16c60 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html