linux-kernel - Re: [PATCH 3/3] acpi, memory-hotplug: Support getting hotplug info from SRAT.

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Message-ID: <510641CC.9040707@cn.fujitsu.com>
Date:	Mon, 28 Jan 2013 17:15:56 +0800
From:	Tang Chen <tangchen@...fujitsu.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
CC:	jiang.liu@...wei.com, wujianguo@...wei.com, hpa@...or.com,
	wency@...fujitsu.com, laijs@...fujitsu.com, linfeng@...fujitsu.com,
	yinghai@...nel.org, isimatu.yasuaki@...fujitsu.com,
	rob@...dley.net, kosaki.motohiro@...fujitsu.com,
	minchan.kim@...il.com, mgorman@...e.de, rientjes@...gle.com,
	guz.fnst@...fujitsu.com, rusty@...tcorp.com.au, lliubbo@...il.com,
	jaegeuk.hanse@...il.com, tony.luck@...el.com,
	glommer@...allels.com, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org
Subject: Re: [PATCH 3/3] acpi, memory-hotplug: Support getting hotplug info
 from SRAT.

On 01/26/2013 09:12 AM, Andrew Morton wrote:
> On Fri, 25 Jan 2013 17:42:09 +0800
> Tang Chen<tangchen@...fujitsu.com>  wrote:
>
>> NOTE: Using this way will cause NUMA performance down because the whole node
>>        will be set as ZONE_MOVABLE, and kernel cannot use memory on it.
>>        If users don't want to lose NUMA performance, just don't use it.
>
> I agree with this, but it means that nobody will test any of your new code.
>
> To get improved testing coverage, can you think of any temporary
> testing-only patch which will cause testers to exercise the
> memory-hotplug changes?

Hi Andrew,

OK，I‘ll think about it and post the testing patch. But I think a shell 
script
may be easier because the boot option is specified by user and the code 
only runs
when system is booting. So we need to reboot the system all the time.

Thanks. :)
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