From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753689AbdBUQQN (ORCPT ); Tue, 21 Feb 2017 11:16:13 -0500 Received: from shards.monkeyblade.net ([184.105.139.130]:54332 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753578AbdBUQQF (ORCPT ); Tue, 21 Feb 2017 11:16:05 -0500 Date: Tue, 21 Feb 2017 11:16:02 -0500 (EST) Message-Id: <20170221.111602.860315087619854954.davem@davemloft.net> To: jszhang@marvell.com Cc: gregory.clement@free-electrons.com, thomas.petazzoni@free-electrons.com, arnd@arndb.de, mw@semihalf.com, linux-arm-kernel@lists.infradead.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH net-next v3 0/4] net: mvneta: improve rx/tx performance From: David Miller In-Reply-To: <20170221123726.2db7db19@xhacker> References: <20170220125344.3555-1-jszhang@marvell.com> <877f4laqog.fsf@free-electrons.com> <20170221123726.2db7db19@xhacker> X-Mailer: Mew version 6.7 on Emacs 24.5 / Mule 6.0 (HANACHIRUSATO) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.5.12 (shards.monkeyblade.net [149.20.54.216]); Tue, 21 Feb 2017 07:17:09 -0800 (PST) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Jisheng Zhang Date: Tue, 21 Feb 2017 12:37:40 +0800 > Thanks for your review. > > The measurement is simple: record how much time we spent in mvneta_rx_swbm() > for receiving 1GB data, something as below: Please use a standard tool for measuring performance, rather than profiling the driver and trying to derive numbers that way.