From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751562Ab1GRUgx (ORCPT ); Mon, 18 Jul 2011 16:36:53 -0400 Received: from adelie.canonical.com ([91.189.90.139]:40023 "EHLO adelie.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750929Ab1GRUgv (ORCPT ); Mon, 18 Jul 2011 16:36:51 -0400 Date: Mon, 18 Jul 2011 15:36:38 -0500 (CDT) From: Manoj Iyer X-X-Sender: manjo@lazy To: Chris Ball cc: Manoj Iyer , Arnd Bergmann , linux-kernel@vger.kernel.org, jbarnes@virtuousgeek.org, matsumur@nts.ricoh.co.jp, linux-pci@vger.kernel.org, linux-mmc@vger.kernel.org Subject: Re: [PATCH] mmc: Added quirks for Ricoh 1180:e823 lower base clock frequency In-Reply-To: Message-ID: References: <1310419715-13254-1-git-send-email-manoj.iyer@canonical.com> <201107131835.25217.arnd@arndb.de> User-Agent: Alpine 2.02 (DEB 1266 2009-07-14) MIME-Version: 1.0 Content-Type: MULTIPART/MIXED; BOUNDARY="8323329-1333013405-1311021405=:1677" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. --8323329-1333013405-1311021405=:1677 Content-Type: TEXT/PLAIN; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: QUOTED-PRINTABLE Chris, Here are the results with SanDisk SDSDXP1-016G-A75 16GB Extreme Pro SDHC=20 Memory Card. u@u:~/flashbench$ sudo ./flashbench -a /dev/mmcblk0p1 [sudo] password for u: align 4294967296 pre 1.16ms on 1.15ms post 1.15ms=20 diff -2024ns align 2147483648 pre 1.2ms on 1.2ms post 1.2ms=20 diff 522ns align 1073741824 pre 1.21ms on 1.2ms post 1.2ms=20 diff 570ns align 536870912 pre 1.2ms on 1.2ms post 1.2ms diff 662ns align 268435456 pre 1.2ms on 1.2ms post 1.2ms diff 404ns align 134217728 pre 1.2ms on 1.2ms post 1.2ms diff=20 -1692ns align 67108864 pre 1.15ms on 1.16ms post 1.16ms diff=20 1.37=B5s align 33554432 pre 1.18ms on 1.19ms post 1.15ms diff=20 31.3=B5s align 16777216 pre 1.17ms on 1.19ms post 1.15ms diff=20 31.5=B5s align 8388608 pre 1.17ms on 1.21ms post 1.18ms diff=20 32.9=B5s align 4194304 pre 1.37ms on 1.55ms post 1.17ms diff 274=B5= s align 2097152 pre 1.37ms on 1.37ms post 1.39ms diff=20 -7992ns align 1048576 pre 1.33ms on 1.33ms post 1.34ms diff=20 -7793ns align 524288 pre 1.33ms on 1.33ms post 1.34ms diff=20 -6641ns align 262144 pre 1.34ms on 1.38ms post 1.35ms diff=20 33.8=B5s align 131072 pre 1.35ms on 1.37ms post 1.34ms diff=20 27.2=B5s align 65536 pre 1.34ms on 1.37ms post 1.34ms diff=20 31.7=B5s align 32768 pre 1.33ms on 1.37ms post 1.34ms diff=20 32.5=B5s u@u:~/flashbench$ sudo ./flashbench -O --erasesize=3D$[4 * 1024 * 1024]=20 --blocksize=3D$[256 * 1024] /dev/mmcblk0p1 --open-au-nr=3D2 4MiB 23.2M/s 2MiB 23.6M/s 1MiB 23.5M/s 512KiB 23.2M/s 256KiB 23.2M/s u@u:~/flashbench$ On Wed, 13 Jul 2011, Chris Ball wrote: > Hi, > > On Wed, Jul 13 2011, Manoj Iyer wrote: >>> It could be better. Do you think you could get hold of a UHS-1 card fo= r >>> testing with? (I don't think it's worth doing if there's no appreciabl= e >>> performance difference either way.) >> >> Yes, I can go out and buy one today, do the performance tests like I >> have done before and report back to you. > > Perfect. Thanks very much! > > - Chris. > --=20 > Chris Ball > One Laptop Per Child > > -- =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D Manoj Iyer Ubuntu/Canonical Hardware Enablement =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D --8323329-1333013405-1311021405=:1677--