From: Jaehoon Chung <jh80.chung@samsung.com>
To: "Heiko Stübner" <heiko@sntech.de>, "Tomasz Figa" <tomasz.figa@gmail.com>
Cc: linux-samsung-soc@vger.kernel.org,
Seungwon Jeon <tgih.jun@samsung.com>,
linux-mmc@vger.kernel.org, Chris Ball <chris@printf.net>,
Jaehoon Chung <jh80.chung@samsung.com>,
Ben Dooks <ben-linux@fluff.org>,
linux-arm-kernel@lists.infradead.org,
Marek Szyprowski <m.szyprowski@samsung.com>
Subject: Re: [PATCH 0/6] mmc: sdhci-s3c: Fix base clock source management
Date: Mon, 13 Jan 2014 14:47:19 +0900 [thread overview]
Message-ID: <52D37DE7.1000407@samsung.com> (raw)
In-Reply-To: <1704043.sYrCOYas4N@phil>
Hi, All.
On 01/13/2014 06:18 AM, Heiko Stübner 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@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@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 <heiko@sntech.de>
> Acked-by: Heiko Stuebner <heiko@sntech.de>
Tested with exynos4 board.
Tested-by: Jaehoon Chung <jh80.chung@samsung.com>
Acked-by; Jaehoon Chung <jh80.chung@samsung.com>
Best Regards,
Jaehoon Chung
>
>
> Thanks for the added bandwidth :-)
> Heiko
>
>
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
>
WARNING: multiple messages have this Message-ID (diff)
From: jh80.chung@samsung.com (Jaehoon Chung)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 0/6] mmc: sdhci-s3c: Fix base clock source management
Date: Mon, 13 Jan 2014 14:47:19 +0900 [thread overview]
Message-ID: <52D37DE7.1000407@samsung.com> (raw)
In-Reply-To: <1704043.sYrCOYas4N@phil>
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 <heiko@sntech.de>
> Acked-by: Heiko Stuebner <heiko@sntech.de>
Tested with exynos4 board.
Tested-by: Jaehoon Chung <jh80.chung@samsung.com>
Acked-by; Jaehoon Chung <jh80.chung@samsung.com>
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
>
next prev parent reply other threads:[~2014-01-13 5:47 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-01-11 21:39 [PATCH 0/6] mmc: sdhci-s3c: Fix base clock source management Tomasz Figa
2014-01-11 21:39 ` Tomasz Figa
2014-01-11 21:39 ` [PATCH 1/6] mmc: sdhci-s3c: Use shifts to divide by powers of two Tomasz Figa
2014-01-11 21:39 ` Tomasz Figa
2014-01-11 21:39 ` [PATCH 2/6] mmc: sdhci-s3c: Cache bus clock rates Tomasz Figa
2014-01-11 21:39 ` Tomasz Figa
2014-01-11 21:39 ` [PATCH 3/6] mmc: sdhci-s3c: Use correct condition to check for clock presence Tomasz Figa
2014-01-11 21:39 ` Tomasz Figa
2014-01-11 21:39 ` [PATCH 4/6] mmc: sdhci-s3c: Simplify min/max clock calculation Tomasz Figa
2014-01-11 21:39 ` Tomasz Figa
2014-01-11 21:39 ` [PATCH 5/6] mmc: sdhci-s3c: Fix handling of bus clock switching Tomasz Figa
2014-01-11 21:39 ` Tomasz Figa
2014-01-11 21:39 ` [PATCH 6/6] mmc: sdhci-s3c: Do not allow frequencies higher than requested Tomasz Figa
2014-01-11 21:39 ` Tomasz Figa
2014-01-12 21:18 ` [PATCH 0/6] mmc: sdhci-s3c: Fix base clock source management Heiko Stübner
2014-01-12 21:18 ` Heiko Stübner
2014-01-13 5:47 ` Jaehoon Chung [this message]
2014-01-13 5:47 ` Jaehoon Chung
2014-01-13 12:43 ` Tomasz Figa
2014-01-13 12:43 ` Tomasz Figa
2014-02-07 9:58 ` Tomasz Figa
2014-02-07 9:58 ` Tomasz Figa
2014-02-20 19:26 ` Tomasz Figa
2014-02-20 19:26 ` Tomasz Figa
2014-03-03 15:06 ` Tomasz Figa
2014-03-03 15:06 ` Tomasz Figa
2014-03-03 15:24 ` Chris Ball
2014-03-03 15:24 ` Chris Ball
2014-03-03 15:25 ` Tomasz Figa
2014-03-03 15:25 ` Tomasz Figa
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