* can hypervisor run on multi-core at the same time
@ 2008-10-19 8:24 xdongp
2008-10-19 9:12 ` Keir Fraser
0 siblings, 1 reply; 2+ messages in thread
From: xdongp @ 2008-10-19 8:24 UTC (permalink / raw)
To: xen-devel
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Hi,
I found that there is a sharp decline on VM's performance when a number of VM runing on the same physical hostile, I think maybe xen hypervisor is bottleneck, my question is can hypervisor run on multi-core at the same time. thanks!
2008-10-19
xdongp
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^ permalink raw reply [flat|nested] 2+ messages in thread* Re: can hypervisor run on multi-core at the same time
2008-10-19 8:24 can hypervisor run on multi-core at the same time xdongp
@ 2008-10-19 9:12 ` Keir Fraser
0 siblings, 0 replies; 2+ messages in thread
From: Keir Fraser @ 2008-10-19 9:12 UTC (permalink / raw)
To: xdongp, xen-devel
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How are you measuring performance? The hypervisor can run simultaneously on
every core of a multi-core system. It does have internal locking and
synchronisation of course, but actually there¹s little contention when
different VMs run on different cores.
-- Keir
On 19/10/08 09:24, "xdongp" <xdongp@gmail.com> wrote:
> Hi,
> I found that there is a sharp decline on VM's performance when a number of
> VM runing on the same physical hostile, I think maybe xen hypervisor is
> bottleneck, my question is can hypervisor run on multi-core at the same time.
> thanks!
>
> 2008-10-19
>
> xdongp
>
>
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xensource.com
> http://lists.xensource.com/xen-devel
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http://lists.xensource.com/xen-devel
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2008-10-19 8:24 can hypervisor run on multi-core at the same time xdongp
2008-10-19 9:12 ` Keir Fraser
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