linux-kernel - Re: [PATCH v4 00/11] KVM: x86: optimize for writing guest page

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Message-ID: <4E940018.1010908@cn.fujitsu.com>
Date:	Tue, 11 Oct 2011 16:36:40 +0800
From:	Xiao Guangrong <xiaoguangrong@...fujitsu.com>
To:	Avi Kivity <avi@...hat.com>
CC:	Marcelo Tosatti <mtosatti@...hat.com>,
	LKML <linux-kernel@...r.kernel.org>, KVM <kvm@...r.kernel.org>
Subject: Re: [PATCH v4 00/11] KVM: x86: optimize for writing guest page

On 10/09/2011 09:37 PM, Avi Kivity wrote:
> On 10/09/2011 02:24 PM, Avi Kivity wrote:
>> On 10/08/2011 06:06 AM, Xiao Guangrong wrote:
>>> On 10/07/2011 01:53 AM, Marcelo Tosatti wrote:
>>> >  On Thu, Sep 22, 2011 at 04:52:40PM +0800, Xiao Guangrong wrote:
>>> >>  This patchset is against https://github.com/avikivity/kvm.git next branch.
>>> >>
>>> >>  In this version, some changes come from Avi's comments:
>>> >>  - fix instruction retried for nested guest
>>> >>  - skip write-flooding for the sp whose level is 1
>>> >>  - rename some functions
>>> >
>>> >  Please rebase.
>>> >
>>> >
>>>
>>> Marcelo,
>>>
>>> These patches can be applied without any conflict and it also works well,
>>> the current code was pulled from https://github.com/avikivity/kvm.git next branch.
>>>
>>> What problem did you meet when you applied these? :(
>>
>> I guess it was a user error - it applies cleanly here too (and pushed to next, thanks).
>>
> 
> However, it seems to reduce performance.
> 

Ouch, will look into it soon.
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