linux-kernel - Re: swap on eMMC and other flash

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Date:	Wed, 04 Apr 2012 15:21:54 +0300
From:	Adrian Hunter <adrian.hunter@...el.com>
To:	Arnd Bergmann <arnd@...db.de>
CC:	linaro-kernel@...ts.linaro.org, linux-mm@...ck.org,
	"Luca Porzio (lporzio)" <lporzio@...ron.com>,
	Alex Lemberg <alex.lemberg@...disk.com>,
	linux-kernel@...r.kernel.org, Saugata Das <saugata.das@...aro.org>,
	Venkatraman S <venkat@...aro.org>,
	Yejin Moon <yejin.moon@...sung.com>,
	Hyojin Jeong <syr.jeong@...sung.com>,
	"linux-mmc@...r.kernel.org" <linux-mmc@...r.kernel.org>,
	kernel-team@...roid.com
Subject: Re: swap on eMMC and other flash

On 30/03/12 21:50, Arnd Bergmann wrote:
> (sorry for the duplicated email, this corrects the address of the android
> kernel team, please reply here)
> 
> On Friday 30 March 2012, Arnd Bergmann wrote:
> 
>  We've had a discussion in the Linaro storage team (Saugata, Venkat and me,
>  with Luca joining in on the discussion) about swapping to flash based media
>  such as eMMC. This is a summary of what we found and what we think should
>  be done. If people agree that this is a good idea, we can start working
>  on it.

There is mtdswap.

Also the old Nokia N900 had swap to eMMC.

The last I heard was that swap was considered to be simply too slow on hand
held devices.

As systems adopt more RAM, isn't there a decreasing demand for swap?
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