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 >