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: Thu, 19 May 2011 11:37:39 +0900 Message-ID: <4DD48273.4060402@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> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7BIT Return-path: Received: from mailout2.samsung.com ([203.254.224.25]:26047 "EHLO mailout2.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755472Ab1ESCho (ORCPT ); Wed, 18 May 2011 22:37:44 -0400 Received: from epcpsbgm1.samsung.com (mailout2.samsung.com [203.254.224.25]) by mailout2.samsung.com (Oracle Communications Messaging Exchange Server 7u4-19.01 64bit (built Sep 7 2010)) with ESMTP id <0LLF00C6R8MOHGE0@mailout2.samsung.com> for linux-mmc@vger.kernel.org; Thu, 19 May 2011 11:37:42 +0900 (KST) Received: from TNRNDGASPAPP1.tn.corp.samsungelectronics.net ([165.213.149.150]) by mmp2.samsung.com (iPlanet Messaging Server 5.2 Patch 2 (built Jul 14 2004)) with ESMTPA id <0LLF0079Y8MULO@mmp2.samsung.com> for linux-mmc@vger.kernel.org; Thu, 19 May 2011 11:37:42 +0900 (KST) In-reply-to: <1303870235-29041-3-git-send-email-andreiw@motorola.com> Sender: linux-mmc-owner@vger.kernel.org List-Id: linux-mmc@vger.kernel.org To: Andrei Warkentin Cc: linux-mmc@vger.kernel.org, arindam.nath@amd.com, cjb@laptop.org, arnd@arndb.de, Kyungmin Park Hi Andrei Andrei Warkentin wrote: > CMD23-prefixed instead of open-ended multiblock transfers > have a performance advantage on some MMC cards. > you mentioned about "some MMC cards". Conversely, that means the some card didn't have a performance advantage? Did you find the performance advantage? if you found the advantage and you can tell me, i want to know what do you have the some MMC cards.. Regards, Jaehoon Chung