linux-kernel - Re: [PATCH 0/5] mmc: add double buffering for mmc block requests

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Date:	Sun, 30 Jan 2011 17:23:43 +0900
From:	Jaehoon Chung <jh80.chung@...sung.com>
To:	Per Forlin <per.forlin@...aro.org>
Cc:	Jaehoon Chung <jh80.chung@...sung.com>, linux-mmc@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	linaro-dev@...ts.linaro.org, Chris Ball <cjb@...top.org>,
	Kyungmin Park <kyungmin.park@...sung.com>
Subject: Re: [PATCH 0/5] mmc: add double buffering for mmc block requests

Hi Per.

If you sketch a implementation for sdhci. i can test the patches on the Samsung Soc
Your help is very nice for me :).i want to know how much improve the performance 
after applied your patch.

Regards,
Jaehoon Chung

Per Forlin wrote:
> Hi Jaehoon,
> 
> Have you had the chance to test the patches on the Samsung Soc. I can
> sketch a implementation for sdhci if that helps? Unfortunately I don't
> have any hardware to test the SDHCI driver unless there is support in
> QEMU?
> I really think I need to test this on more hardware in order to get
> more results for the patchset and hopefully more attention as well.
> 
> BR
> Per
> 
> On 18 January 2011 09:12, Per Forlin <per.forlin@...aro.org> wrote:
>> On 18 January 2011 03:35, Jaehoon Chung <jh80.chung@...sung.com> wrote:
>>> Hi Per..
>>>
>>> it is interesting approach..so
>>> we want to test your double buffering in our environment(Samsung SoC).
>>>
>>> Did you test with SDHCI?
>> So far I have only tested on mmci for board u5500 and u8500. I happily
>> test on a different board if I can get hold of one.
>>
>>> If you tested with SDHCI, i want to know how much increase the performance.
>>>
>>> Thanks,
>>> Jaehoon Chung
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