From mboxrd@z Thu Jan 1 00:00:00 1970 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 F17E41BD9D0; Sat, 4 Jan 2025 15:51:22 +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=1736005883; cv=none; b=gipOtMJwkjjezdMBN64GPm8SCUK5DVGnxm2strt/d56tN2M6odzUwiWEaCOj1Cy8UsMwN2ojAd08nGhHuwKUWluzf8nS5FDsvpL5K9cDf+fbP2GYpmNXIX9mA6FOL4LeDcD0HWoVINk1mgZxYLLzH5rAvK6V6R8w6UGCO28CNys= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1736005883; c=relaxed/simple; bh=It380Mks6V/DCwFFzYpAvM3nnZRcp+sKju14z+bLOZg=; h=Date:From:To:Cc:Subject:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=TSR9zP1wusAG1Wyh1wrmThX2iR0zUoun+hzFlQ+JKjItbeoM1dLhW0LdcxEbzpKQdudWz7eZTlla/OuUM5iV7xBz4N87evu+cty+e9vfE3V0r0i6uFYvPw+G3XlXwjm/WXeVE3HpfETvFqVeR7V328v/Afxo8az9f8fQoYC2Ps4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=rJlIS+nV; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="rJlIS+nV" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 01928C4CED1; Sat, 4 Jan 2025 15:51:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1736005882; bh=It380Mks6V/DCwFFzYpAvM3nnZRcp+sKju14z+bLOZg=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=rJlIS+nV7gOv/Jka7mG+Fk241wSz/0FSug7cCwDR5J74+85VNRZFdSQe1cgUv/Xnx GxoFuZ4HWEMJqZEhw1FBTcQrTzQgO5lQ6OumYeDMa4mAbtVHU4PsIdVnVjKQ/f7QHV WbHO69qdPZGRHlt4qSwdTixPhrGGAPIqk30razuHL36ny6lAQcTMtL83Q7Jb/use+5 A8dEAePsSemKCOFSNsvUTiZEpW7K949T/DfTroRK06ZUr6z9u57v+rwRFwGfRnO6SC 8xDrFMbuw0eJxf1wib84OjfCFyXxzS8onZoJHU52Z+8BVxMepGuMZi9ZElHuNG0T7q a1jl0ucu+woOA== Date: Sat, 4 Jan 2025 07:51:21 -0800 From: Jakub Kicinski To: Furong Xu <0x1207@gmail.com> Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, Jesper Dangaard Brouer , Ilias Apalodimas , "David S. Miller" , Eric Dumazet , Paolo Abeni , Simon Horman Subject: Re: [PATCH net-next v2] page_pool: check for dma_sync_size earlier Message-ID: <20250104075121.393adef7@kernel.org> In-Reply-To: <20250103082814.3850096-1-0x1207@gmail.com> References: <20250103082814.3850096-1-0x1207@gmail.com> Precedence: bulk X-Mailing-List: netdev@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, 3 Jan 2025 16:28:14 +0800 Furong Xu wrote: > This is a micro optimization, about 0.6% overall performance improvement > has been observed on a Cortex-A53 platform. You need to say more about how you measured this improvement. Is it PPS improvement in a traffic test? Measured using a micro-benchmark? Based on first order metric or by comparing perf output? -- pw-bot: cr