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[2604:1380:40f1:3f00::1]) by mx.google.com with ESMTPS id d2e1a72fcca58-705cc8fa023si3891383b3a.63.2024.06.14.09.32.37 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 14 Jun 2024 09:32:37 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel+bounces-215195-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:40f1:3f00::1 as permitted sender) client-ip=2604:1380:40f1:3f00::1; Authentication-Results: mx.google.com; arc=pass (i=1); spf=pass (google.com: domain of linux-kernel+bounces-215195-linux.lists.archive=gmail.com@vger.kernel.org designates 2604:1380:40f1:3f00::1 as permitted sender) smtp.mailfrom="linux-kernel+bounces-215195-linux.lists.archive=gmail.com@vger.kernel.org" Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by sy.mirrors.kernel.org (Postfix) with ESMTPS id 4AC88B23350 for ; Fri, 14 Jun 2024 16:04:21 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 7C54516D4FC; Fri, 14 Jun 2024 16:04:12 +0000 (UTC) Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id F24902B9A5; Fri, 14 Jun 2024 16:04:11 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718381052; cv=none; b=Vre/drbomWHy6HhKmaJQQ4rZiqy6ccrY1AMX0cWbBPEF/hA/SyqKTDu85pzcj5Co1AmKaDc7gH0C4uMDA95xZU6wJ9PSn+qE+qqNIgLHa8CGhnqh600WVzkiZeMDgYVxd5AG/2DMbqEa2aBgGg+BOoz3UD7wYLPEGqHW/YZ5ERE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718381052; c=relaxed/simple; bh=h70utgHBorbBfshCIgE/ucDMVVK2Rn8sFXr9Eehm52E=; h=Date:From:To:Cc:Subject:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=e58CEHZ4fQDrtmbe+fZWIngWSTGBOMOs2aDDA7BV7ZSSobCunGsj1oUphhhXZ9uLWCPYPkrqrD/TbTsKnUKbFfvOjPbYissQozVQ10y9nrAzRbjmdJwnrnGV4dCJtkoaWvP8MXSLeH80IkPYQw4hjGOIp4Km7/gTyNCkWNui+2A= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 Received: by smtp.kernel.org (Postfix) with ESMTPSA id B35FFC32786; Fri, 14 Jun 2024 16:04:08 +0000 (UTC) Date: Fri, 14 Jun 2024 12:04:07 -0400 From: Steven Rostedt To: Paolo Abeni Cc: Sebastian Andrzej Siewior , Eric Dumazet , linux-kernel@vger.kernel.org, netdev@vger.kernel.org, "David S. Miller" , Daniel Bristot de Oliveira , Boqun Feng , Daniel Borkmann , Frederic Weisbecker , Ingo Molnar , Jakub Kicinski , Peter Zijlstra , Thomas Gleixner , Waiman Long , Will Deacon , Ben Segall , Daniel Bristot de Oliveira , Dietmar Eggemann , Juri Lelli , Mel Gorman , Valentin Schneider , Vincent Guittot Subject: Re: [PATCH v6 net-next 08/15] net: softnet_data: Make xmit.recursion per task. Message-ID: <20240614120407.3eb2ac80@rorschach.local.home> In-Reply-To: <834b61b93df3cbf5053e459f337e622e2c510fbd.camel@redhat.com> References: <20240612170303.3896084-1-bigeasy@linutronix.de> <20240612170303.3896084-9-bigeasy@linutronix.de> <20240612131829.2e33ca71@rorschach.local.home> <20240614082758.6pSMV3aq@linutronix.de> <20240614094809.gvOugqZT@linutronix.de> <834b61b93df3cbf5053e459f337e622e2c510fbd.camel@redhat.com> X-Mailer: Claws Mail 3.17.8 (GTK+ 2.24.33; x86_64-pc-linux-gnu) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit On Fri, 14 Jun 2024 16:08:42 +0200 Paolo Abeni wrote: > > Is this what we want or not? > > I personally think (fear mostly) there is still the potential for some > (performance) regression. I think it would be safer to introduce this > change under a compiler conditional and eventually follow-up with a > patch making the code generic. > > Should such later change prove to be problematic, we could revert it > without impacting the series as a whole. That makes sense to me. -- Steve