Wiki: Add SMP Count to "Guest Support Status"

Wiki: Add SMP Count to "Guest Support Status"

[Fabian Deutsch]

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Hey.

I've been trying Microsoft Windows 2003 a couple of times. The wiki
tells me that "everything" should work okay. It does, when using -smp 1,
but gets ugly when using -smp 2 or so.

SO might it be useful, to add the column "smp" to the "Guest Support
Status" Page in the wiki?

- fabian

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Re: Wiki: Add SMP Count to "Guest Support Status"

[David Mair]

Fabian Deutsch wrote:
> Hey.
> 
> I've been trying Microsoft Windows 2003 a couple of times. The wiki
> tells me that "everything" should work okay. It does, when using -smp 1,
> but gets ugly when using -smp 2 or so.
> 
> SO might it be useful, to add the column "smp" to the "Guest Support
> Status" Page in the wiki?

It's probably worth explaining what you mean by "gets ugly" and worth 
describing the environment. I just installed a Windows 2003 Enterprise 
Edition with -smp 2 and had no problems during or after the install. I 
confirmed Windows detected and uses two CPUs. IOW, works for me.

Intel(R) Core(TM)2 CPU T7600  @ 2.33GHz
SuSE kernel 2.6.22.17-0.1-default x86_64
kvm-67

# qemu-system-x86_64 -smp 2 -m 512 -usb -localtime -hda disk.img -boot c

---
David Mair.

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Re: Wiki: Add SMP Count to "Guest Support Status"

[Avi Kivity]

Fabian Deutsch wrote:
> Hey.
>
> I've been trying Microsoft Windows 2003 a couple of times. The wiki
> tells me that "everything" should work okay. It does, when using -smp 1,
> but gets ugly when using -smp 2 or so.
>
> SO might it be useful, to add the column "smp" to the "Guest Support
> Status" Page in the wiki?
>   

SMP Windows work best if you have FlexPriority on your hardware.  What 
host cpu are you using?

-- 
Any sufficiently difficult bug is indistinguishable from a feature.


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Re: Wiki: Add SMP Count to "Guest Support Status"

[Fabian Deutsch]

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Avi Kivity wrote:
> Fabian Deutsch wrote:
> > Hey.
> >
> > I've been trying Microsoft Windows 2003 a couple of times. The wiki
> > tells me that "everything" should work okay. It does, when using -smp 1,
> > but gets ugly when using -smp 2 or so.
> >
> > SO might it be useful, to add the column "smp" to the "Guest Support
> > Status" Page in the wiki?
> >   
> 
> SMP Windows work best if you have FlexPriority on your hardware.  What 
> host cpu are you using?

In general I am not able to install Microsoft Windows guests when using
-smp > 1 on the following hardware (and kvm modules+userspace head):
Intel(R) Xeon(R) CPU           X3210  @ 2.13GHz


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Re: Wiki: Add SMP Count to "Guest Support Status"

[Avi Kivity]

Fabian Deutsch wrote:
> Avi Kivity wrote:
>   
>> Fabian Deutsch wrote:
>>     
>>> Hey.
>>>
>>> I've been trying Microsoft Windows 2003 a couple of times. The wiki
>>> tells me that "everything" should work okay. It does, when using -smp 1,
>>> but gets ugly when using -smp 2 or so.
>>>
>>> SO might it be useful, to add the column "smp" to the "Guest Support
>>> Status" Page in the wiki?
>>>   
>>>       
>> SMP Windows work best if you have FlexPriority on your hardware.  What 
>> host cpu are you using?
>>     
>
> In general I am not able to install Microsoft Windows guests when using
> -smp > 1 on the following hardware (and kvm modules+userspace head):
> Intel(R) Xeon(R) CPU           X3210  @ 2.13GHz
>
>   

What do you mean "not able"?  Does the installer hang?  bluescreen? where?

I don't think it has flexpriority, but not sure.  Will add code so 
people can find out.

-- 
I have a truly marvellous patch that fixes the bug which this
signature is too narrow to contain.


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