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SubjectRe: [PATCH v4 00/11] KVM: x86: optimize for writing guest page
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.

Autotest results before:

Test Status Seconds Info
---- ------ ------- ----
(Result file: ../../results/default/status)
unittest GOOD 147
completed successfully
Fedora.9.32.install.smp2 GOOD 865
completed successfully
Fedora.9.32.boot.smp2 GOOD 46
completed successfully
Fedora.9.32.reboot.smp2 GOOD 49
completed successfully
Fedora.9.32.shutdown.smp2 GOOD 15
completed successfully
Fedora.9.64.install.smp2 GOOD 943
completed successfully
Fedora.9.64.boot.smp2 GOOD 47
completed successfully
Fedora.9.64.reboot.smp2 GOOD 48
completed successfully
Fedora.9.64.shutdown.smp2 GOOD 14
completed successfully
WinXP.32.install.smp2 GOOD 772
completed successfully
WinXP.32.setup.smp2 GOOD 53
completed successfully
WinXP.32.boot.smp2 GOOD 57
completed successfully
WinXP.32.reboot.smp2 GOOD 34
completed successfully
WinXP.32.shutdown.smp2 GOOD 5
completed successfully
WinXP.64.install.smp2 GOOD 636
completed successfully

After:

unittest GOOD 150
completed successfully
Fedora.9.32.install.smp2 GOOD 879
completed successfully
Fedora.9.32.boot.smp2 GOOD 50
completed successfully
Fedora.9.32.reboot.smp2 GOOD 48
completed successfully
Fedora.9.32.shutdown.smp2 GOOD 15
completed successfully
Fedora.9.64.install.smp2 GOOD 997
completed successfully
Fedora.9.64.boot.smp2 GOOD 47
completed successfully
Fedora.9.64.reboot.smp2 GOOD 48
completed successfully
Fedora.9.64.shutdown.smp2 GOOD 14
completed successfully
WinXP.32.install.smp2 GOOD 764
completed successfully
WinXP.32.setup.smp2 GOOD 51
completed successfully
WinXP.32.boot.smp2 GOOD 40
completed successfully
WinXP.32.reboot.smp2 GOOD 34
completed successfully
WinXP.32.shutdown.smp2 GOOD 5
completed successfully
WinXP.64.install.smp2 GOOD 666
completed successfully


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



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