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 smtp1.osuosl.org (smtp1.osuosl.org [140.211.166.138]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id B8DE0C77B7A for ; Wed, 17 May 2023 15:08:56 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp1.osuosl.org (Postfix) with ESMTP id 38D5D80C34; Wed, 17 May 2023 15:08:56 +0000 (UTC) DKIM-Filter: OpenDKIM Filter v2.11.0 smtp1.osuosl.org 38D5D80C34 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=osuosl.org; s=default; t=1684336136; bh=3jf2UB+VwzmHgl8RDxgT8/cRctnKTpSeoWuNUvFBRAw=; h=Date:From:To:References:In-Reply-To:Subject:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: Cc:From; b=OoSKcQ2OosykNaRuGdMTq0YXG10965i+ytIeCYHExu2bOB9oI19InBAVIXbHhHSfz 0irVdHHVg8qopNIJNHXCqrdH2pMLVLA+0zO81VfwIOswgmyUn9PLI1LBwuqSUyvMnf vh0pkUBqoUaoXbClfyRZQXKXV2h99HmjUSaIxviPeBqLMAMtnEvBOd7Nt/HcDGI1GI rdsIb698Uzbgqf9vx4o74cKgVLbItGRcZTOKZlVZbgYwPex8fpKJZdCgMYZNb6YL+f eCD0lUKtrWsw1TbAu6ykZqDYdO7bXzTR3zObzYjZhArVe4chd7RmT1jRjjSu8NPGBD GcQK410ngDBtA== X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp1.osuosl.org ([127.0.0.1]) by localhost (smtp1.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id sNGY9ZdZt5c5; Wed, 17 May 2023 15:08:55 +0000 (UTC) Received: from ash.osuosl.org (ash.osuosl.org [140.211.166.34]) by smtp1.osuosl.org (Postfix) with ESMTP id 4F4BE81A47; Wed, 17 May 2023 15:08:55 +0000 (UTC) DKIM-Filter: OpenDKIM Filter v2.11.0 smtp1.osuosl.org 4F4BE81A47 Received: from smtp1.osuosl.org (smtp1.osuosl.org [140.211.166.138]) by ash.osuosl.org (Postfix) with ESMTP id E39FC1BF410 for ; Wed, 17 May 2023 08:15:06 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp1.osuosl.org (Postfix) with ESMTP id BBD1381FC4 for ; Wed, 17 May 2023 08:15:06 +0000 (UTC) DKIM-Filter: OpenDKIM Filter v2.11.0 smtp1.osuosl.org BBD1381FC4 X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp1.osuosl.org ([127.0.0.1]) by localhost (smtp1.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 6vSoNi64AnxH for ; Wed, 17 May 2023 08:15:05 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.8.0 DKIM-Filter: OpenDKIM Filter v2.11.0 smtp1.osuosl.org A15D581FC2 Received: from verein.lst.de (verein.lst.de [213.95.11.211]) by smtp1.osuosl.org (Postfix) with ESMTPS id A15D581FC2 for ; Wed, 17 May 2023 08:15:05 +0000 (UTC) Received: by verein.lst.de (Postfix, from userid 2407) id 8345368C4E; Wed, 17 May 2023 10:14:58 +0200 (CEST) Date: Wed, 17 May 2023 10:14:58 +0200 From: Christoph Hellwig To: Alexander Lobakin Message-ID: <20230517081458.GA32192@lst.de> References: <20230516161841.37138-1-aleksander.lobakin@intel.com> <20230516161841.37138-7-aleksander.lobakin@intel.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20230516161841.37138-7-aleksander.lobakin@intel.com> User-Agent: Mutt/1.5.17 (2007-11-01) X-Mailman-Approved-At: Wed, 17 May 2023 15:08:53 +0000 Subject: Re: [Intel-wired-lan] [PATCH net-next 06/11] net: page_pool: avoid calling no-op externals when possible X-BeenThere: intel-wired-lan@osuosl.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel Wired Ethernet Linux Kernel Driver Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Jesper Dangaard Brouer , Larysa Zaremba , netdev@vger.kernel.org, Ilias Apalodimas , linux-kernel@vger.kernel.org, Christoph Hellwig , Eric Dumazet , Michal Kubiak , intel-wired-lan@lists.osuosl.org, Jakub Kicinski , Paolo Abeni , "David S. Miller" , Magnus Karlsson Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: intel-wired-lan-bounces@osuosl.org Sender: "Intel-wired-lan" So while this looks ok, Eric Dumazet had looked into some optimization for this touching the core code, and promised me to come up with an even better version a while ago. Eric, what's the state of your optimizations for no-op DMA syncs? _______________________________________________ Intel-wired-lan mailing list Intel-wired-lan@osuosl.org https://lists.osuosl.org/mailman/listinfo/intel-wired-lan 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 48C33C77B75 for ; Wed, 17 May 2023 08:15:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229826AbjEQIPH (ORCPT ); Wed, 17 May 2023 04:15:07 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37664 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229747AbjEQIPF (ORCPT ); Wed, 17 May 2023 04:15:05 -0400 Received: from verein.lst.de (verein.lst.de [213.95.11.211]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D7ABE10D4; Wed, 17 May 2023 01:15:02 -0700 (PDT) Received: by verein.lst.de (Postfix, from userid 2407) id 8345368C4E; Wed, 17 May 2023 10:14:58 +0200 (CEST) Date: Wed, 17 May 2023 10:14:58 +0200 From: Christoph Hellwig To: Alexander Lobakin Cc: "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Maciej Fijalkowski , Magnus Karlsson , Michal Kubiak , Larysa Zaremba , Jesper Dangaard Brouer , Ilias Apalodimas , Christoph Hellwig , netdev@vger.kernel.org, intel-wired-lan@lists.osuosl.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH net-next 06/11] net: page_pool: avoid calling no-op externals when possible Message-ID: <20230517081458.GA32192@lst.de> References: <20230516161841.37138-1-aleksander.lobakin@intel.com> <20230516161841.37138-7-aleksander.lobakin@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230516161841.37138-7-aleksander.lobakin@intel.com> User-Agent: Mutt/1.5.17 (2007-11-01) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org So while this looks ok, Eric Dumazet had looked into some optimization for this touching the core code, and promised me to come up with an even better version a while ago. Eric, what's the state of your optimizations for no-op DMA syncs?