From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jaehoon Chung Subject: Re: [[v4] 2/5] MMC: Use CMD23 for multiblock transfers when we can. Date: Tue, 24 May 2011 09:07:02 +0900 Message-ID: <4DDAF6A6.1030608@samsung.com> References: <1302950458-1969-1-git-send-email-andreiw@motorola.com> <1303870235-29041-1-git-send-email-andreiw@motorola.com> <1303870235-29041-2-git-send-email-andreiw@motorola.com> <1303870235-29041-3-git-send-email-andreiw@motorola.com> <4DD48273.4060402@samsung.com> <4DD5F045.90001@samsung.com> <4DDA55B6.3040708@samsung.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7BIT Return-path: Received: from mailout3.samsung.com ([203.254.224.33]:57770 "EHLO mailout3.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751883Ab1EXAHf (ORCPT ); Mon, 23 May 2011 20:07:35 -0400 Received: from epcpsbgm2.samsung.com (mailout3.samsung.com [203.254.224.33]) by mailout3.samsung.com (Oracle Communications Messaging Exchange Server 7u4-19.01 64bit (built Sep 7 2010)) with ESMTP id <0LLO00L1GB0LSO60@mailout3.samsung.com> for linux-mmc@vger.kernel.org; Tue, 24 May 2011 09:07:33 +0900 (KST) Received: from TNRNDGASPAPP1.tn.corp.samsungelectronics.net ([165.213.149.150]) by mmp1.samsung.com (iPlanet Messaging Server 5.2 Patch 2 (built Jul 14 2004)) with ESMTPA id <0LLO00HXKAZRJA@mmp1.samsung.com> for linux-mmc@vger.kernel.org; Tue, 24 May 2011 09:07:03 +0900 (KST) In-reply-to: Sender: linux-mmc-owner@vger.kernel.org List-Id: linux-mmc@vger.kernel.org To: Andrei Warkentin Cc: Jaehoon Chung , linux-mmc@vger.kernel.org, arindam.nath@amd.com, cjb@laptop.org, arnd@arndb.de, Kyungmin Park , "Gao, Yunpeng" Andrei Warkentin wrote: > On Mon, May 23, 2011 at 7:40 AM, Jaehoon Chung wrote: >> Hi A.. >> >> I tested your patch..(using CMD23) >> my environment is the below. >> eMMC card : Sandisk SEM8G (eMMC 4.3+) >> buswidth : 4bit (SDR) >> AP : C110 >> benchmark : IOzone >> > > Knowing what controller you are on is helpful too. Unless you are on > SDHCI, you will see no effect. > I'm using SDHCI controller and tested with them. I'll try to test with your comment and share the results. Regards, Jaehoon Chung