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

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Message-ID: <4EBBD190.2020404@gmail.com>
Date:	Thu, 10 Nov 2011 21:28:48 +0800
From:	Xiao Guangrong <xiao.grong@...il.com>
To:	Avi Kivity <avi@...hat.com>
CC:	Xiao Guangrong <xiaoguangrong@...fujitsu.com>,
	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 11/06/2011 11:35 PM, Avi Kivity wrote:
> On 11/04/2011 11:16 AM, Xiao Guangrong wrote:
>>
>> I have done kernbench tests several times on my desktop, but it shows
>> very well:
>>
>> before patchset:
>> real 212.27
>> real 213.47
>> real 204.99
>> real 200.58
>> real 199.99
>> real 199.94
>> real 201.51
>> real 199.83
>> real 198.19
>> real 205.13
>>
>> after patchset:
>> real 199.90
>> real 201.89
>> real 194.54
>> real 188.71
>> real 185.75
>> real 187.70
>> real 188.99
>> real 188.53
>> real 186.29
>> real 188.25
>>
>> I will test it on our server using kvm-autotest, could you share me
>> your config file please?
>
>
> # Copy this file to tests.cfg and edit it.
> #
> # This file contains the test set definitions. Define your test sets here.
>

Thanks Avi!

I have tested RHEL.6.1 setup/boot/reboot/shutdown and the complete output of 
scan_results.py is attached.

The result shows the performance is improved:
before:			After:
570			529
555			538
552			531
546			528
553			559
553			527
550			523
553			533
547			538
550			526

How do you think about it? :)

Download attachment "result.tar.bz2" of type "application/x-bzip" (737 bytes)