linux-kernel - RE: [PATCH v2 1/4]enable background operations for supported eMMC card

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Message-ID: <5D8008F58939784290FAB48F54975198320B3E464D@shsmsx502.ccr.corp.intel.com>
Date:	Mon, 6 Dec 2010 10:28:34 +0800
From:	"Dong, Chuanxiao" <chuanxiao.dong@...el.com>
To:	Kyungmin Park <kmpark@...radead.org>
CC:	"linux-mmc@...r.kernel.org" <linux-mmc@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"cjb@...top.org" <cjb@...top.org>,
	"akpm@...ux-foundation.org" <akpm@...ux-foundation.org>,
	"arjan@...ux.intel.com" <arjan@...ux.intel.com>,
	"alan@...ux.intel.com" <alan@...ux.intel.com>
Subject: RE: [PATCH v2 1/4]enable background operations for supported eMMC
 card

> -----Original Message-----
> From: kyungmin78@...il.com [mailto:kyungmin78@...il.com] On Behalf Of
> Kyungmin Park
> Sent: Monday, December 06, 2010 9:12 AM
> To: Dong, Chuanxiao
> Cc: linux-mmc@...r.kernel.org; linux-kernel@...r.kernel.org; cjb@...top.org;
> akpm@...ux-foundation.org; arjan@...ux.intel.com; alan@...ux.intel.com
> Subject: Re: [PATCH v2 1/4]enable background operations for supported eMMC
> card
> 
> <Tested-by: Kyungmin Park <kyungmin.park@...sung.com>
> 
> Note that I'm not yet see any performance improvements :)

Thanks Park. Can you tell me the testing steps you used?
During the test, has there any background operation been started?
I think two cases can be tested to check whether there is performance improvement or not.
One is doing background operations when card is busy for reading/writing. The other is doing background operations when card is idle.

Thanks
Chuanxiao
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