From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jaehoon Chung Subject: Re: [PATCH 0/6] mmc: sdhci-s3c: Fix base clock source management Date: Mon, 13 Jan 2014 14:47:19 +0900 Message-ID: <52D37DE7.1000407@samsung.com> References: <1389476346-20396-1-git-send-email-tomasz.figa@gmail.com> <1704043.sYrCOYas4N@phil> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Received: from mailout4.samsung.com ([203.254.224.34]:43904 "EHLO mailout4.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750730AbaAMFrF (ORCPT ); Mon, 13 Jan 2014 00:47:05 -0500 In-reply-to: <1704043.sYrCOYas4N@phil> Sender: linux-mmc-owner@vger.kernel.org List-Id: linux-mmc@vger.kernel.org To: =?UTF-8?B?SGVpa28gU3TDvGJuZXI=?= , Tomasz Figa Cc: linux-samsung-soc@vger.kernel.org, Seungwon Jeon , linux-mmc@vger.kernel.org, Chris Ball , Jaehoon Chung , Ben Dooks , linux-arm-kernel@lists.infradead.org, Marek Szyprowski Hi, All. On 01/13/2014 06:18 AM, Heiko St=C3=BCbner wrote: > Am Samstag, 11. Januar 2014, 22:39:00 schrieb Tomasz Figa: >> Tested on S3C6410-based Mini6410 board, with following performance >> figures: >> >> * Before this series (133 MHz HCLK always selected, leading to at mo= st >> 33 MHz card clock): >> >> root@tiny6410:~# hdparm -t /dev/mmcblk0 >> >> /dev/mmcblk0: >> Timing buffered disk reads: 42 MB in 3.10 seconds =3D 13.54 MB/s= ec >=20 > # hdparm -t /dev/mmcblk0 >=20 > /dev/mmcblk0: > Timing buffered disk reads: 44 MB in 3.12 seconds =3D 14.11 MB/sec /dev/mmcblk0: Timing buffered disk reads: 38 MB in 3.14 seconds =3D 12.12 MB/sec >=20 >=20 >> * After this series (48 MHz EPLL clock selected, leading to 48 MHz c= ard >> clock): >> >> root@tiny6410:~# hdparm -t /dev/mmcblk0 >> >> /dev/mmcblk0: >> Timing buffered disk reads: 56 MB in 3.04 seconds =3D 18.41 MB/s= ec >=20 > # hdparm -t /dev/mmcblk0 >=20 > /dev/mmcblk0: > Timing buffered disk reads: 48 MB in 3.01 seconds =3D 15.94 MB/sec /dev/mmcblk0: Timing buffered disk reads: 56 MB in 3.05 seconds =3D 18.35 MB/sec >=20 >=20 > So on a s3c2416: > Tested-by: Heiko Stuebner > Acked-by: Heiko Stuebner Tested with exynos4 board. Tested-by: Jaehoon Chung Acked-by; Jaehoon Chung Best Regards, Jaehoon Chung >=20 >=20 > Thanks for the added bandwidth :-) > Heiko >=20 >=20 > _______________________________________________ > linux-arm-kernel mailing list > linux-arm-kernel@lists.infradead.org > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel >=20 From mboxrd@z Thu Jan 1 00:00:00 1970 From: jh80.chung@samsung.com (Jaehoon Chung) Date: Mon, 13 Jan 2014 14:47:19 +0900 Subject: [PATCH 0/6] mmc: sdhci-s3c: Fix base clock source management In-Reply-To: <1704043.sYrCOYas4N@phil> References: <1389476346-20396-1-git-send-email-tomasz.figa@gmail.com> <1704043.sYrCOYas4N@phil> Message-ID: <52D37DE7.1000407@samsung.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Hi, All. On 01/13/2014 06:18 AM, Heiko St?bner wrote: > Am Samstag, 11. Januar 2014, 22:39:00 schrieb Tomasz Figa: >> Tested on S3C6410-based Mini6410 board, with following performance >> figures: >> >> * Before this series (133 MHz HCLK always selected, leading to at most >> 33 MHz card clock): >> >> root at tiny6410:~# hdparm -t /dev/mmcblk0 >> >> /dev/mmcblk0: >> Timing buffered disk reads: 42 MB in 3.10 seconds = 13.54 MB/sec > > # hdparm -t /dev/mmcblk0 > > /dev/mmcblk0: > Timing buffered disk reads: 44 MB in 3.12 seconds = 14.11 MB/sec /dev/mmcblk0: Timing buffered disk reads: 38 MB in 3.14 seconds = 12.12 MB/sec > > >> * After this series (48 MHz EPLL clock selected, leading to 48 MHz card >> clock): >> >> root at tiny6410:~# hdparm -t /dev/mmcblk0 >> >> /dev/mmcblk0: >> Timing buffered disk reads: 56 MB in 3.04 seconds = 18.41 MB/sec > > # hdparm -t /dev/mmcblk0 > > /dev/mmcblk0: > Timing buffered disk reads: 48 MB in 3.01 seconds = 15.94 MB/sec /dev/mmcblk0: Timing buffered disk reads: 56 MB in 3.05 seconds = 18.35 MB/sec > > > So on a s3c2416: > Tested-by: Heiko Stuebner > Acked-by: Heiko Stuebner Tested with exynos4 board. Tested-by: Jaehoon Chung Acked-by; Jaehoon Chung Best Regards, Jaehoon Chung > > > Thanks for the added bandwidth :-) > Heiko > > > _______________________________________________ > linux-arm-kernel mailing list > linux-arm-kernel at lists.infradead.org > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel >