linux-kernel - Re: [PATCH 0/4] ksm - dynamic page sharing driver for linux v2

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Date:	Mon, 06 Apr 2009 10:33:05 +0300
From:	Avi Kivity <avi@...hat.com>
To:	Nick Piggin <nickpiggin@...oo.com.au>
CC:	Izik Eidus <ieidus@...hat.com>, akpm@...ux-foundation.org,
	linux-kernel@...r.kernel.org, kvm@...r.kernel.org,
	linux-mm@...ck.org, aarcange@...hat.com, chrisw@...hat.com,
	mtosatti@...hat.com, hugh@...itas.com,
	kamezawa.hiroyu@...fujitsu.com
Subject: Re: [PATCH 0/4] ksm - dynamic page sharing driver for linux v2

Nick Piggin wrote:
> On Sunday 05 April 2009 01:35:18 Izik Eidus wrote:
>
>   
>> This driver is very useful for KVM as in cases of runing multiple guests
>> operation system of the same type.
>> (For desktop work loads we have achived more than x2 memory overcommit
>> (more like x3))
>>     
>
> Interesting that it is a desirable workload to have multiple guests each
> running MS office.
>
> I wonder, can windows enter a paravirtualised guest mode for KVM?

Windows has some support for paravirtualization, for example it can use 
hypercalls instead of tlb flush IPIs.

>  And can
> you detect page allocation/freeing events?
>   

Not that I know of.

-- 
error compiling committee.c: too many arguments to function

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