linux-kernel - Re: [PATCH 4/4] add ksm kernel shared memory driver.

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Message-ID: <49D3A454.2070903@redhat.com>
Date:	Wed, 01 Apr 2009 20:28:52 +0300
From:	Izik Eidus <ieidus@...hat.com>
To:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
CC:	linux-kernel@...r.kernel.org, kvm@...r.kernel.org,
	linux-mm@...ck.org, avi@...hat.com, aarcange@...hat.com,
	chrisw@...hat.com, riel@...hat.com, jeremy@...p.org,
	mtosatti@...hat.com, hugh@...itas.com, corbet@....net,
	yaniv@...hat.com, dmonakhov@...nvz.org
Subject: Re: [PATCH 4/4] add ksm kernel shared memory driver.

KAMEZAWA Hiroyuki wrote:
> On Tue, 31 Mar 2009 15:21:53 +0300
> Izik Eidus <ieidus@...hat.com> wrote:
>   
>>>   
>>>       
>> kpage is actually what going to be KsmPage -> the shared page...
>>
>> Right now this pages are not swappable..., after ksm will be merged we 
>> will make this pages swappable as well...
>>
>>     
> sure.
>
>   
>>> If so, please
>>>  - show the amount of kpage
>>>  
>>>  - allow users to set limit for usage of kpages. or preserve kpages at boot or
>>>    by user's command.
>>>   
>>>       
>> kpage actually save memory..., and limiting the number of them, would 
>> make you limit the number of shared pages...
>>
>>     
>
> Ah, I'm working for memory control cgroup. And *KSM* will be out of control.
> It's ok to make the default limit value as INFINITY. but please add knobs.
>   
Sure, when i will post V2 i will take care for this issue (i will do it 
after i get little bit more review for ksm.c.... :-))

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