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Re: [Xen-users] Xen Not Support multi-cpu??

To: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: Re: [Xen-users] Xen Not Support multi-cpu??
From: Mark Williamson <mark.williamson@xxxxxxxxxxxx>
Date: Tue, 13 Mar 2007 00:58:42 +0000
Cc: Xin Chen <xcheney@xxxxxxxxxxxxxx>
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Hi,

That info is out of date, Xen ha supported SMP guests throughout the 3.x 
series, so it should work fine for you.

It's normal to run dom0 as a UP guest though, since this is often only used 
for IO.  Dedicating a core or hyperthread to it can improve performance.

Cheers,
Mark

On Tuesday 13 March 2007 00:44, Xin Chen wrote:
> Hi ,
>
> I just saw this from xen wiki-faq.
>
>
>     4.3. When I boot vmlinuz-xen0, why doesn't it detect my second CPU?
>
> You may expect the initial Linux instance to detect all your CPUs, but
> this is never the case. Your secondary CPUs will have been detected by
> Xen, but we do not currently support multi-CPU virtual machines, so
> vmlinuz-xen0 can only see one CPU. Of course, you can create extra VMs
> and run them on your other CPUs. Support for multi-processor VMs is in
> the pipeline.
>
>
> does that mean xen doesn't support 2 cpus??
>
> man..
>
> thanks in advance!
> xin
>
> _______________________________________________
> Xen-users mailing list
> Xen-users@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-users

-- 
Dave: Just a question. What use is a unicyle with no seat?  And no pedals!
Mark: To answer a question with a question: What use is a skateboard?
Dave: Skateboards have wheels.
Mark: My wheel has a wheel!

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