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Re: [Xen-devel] can hypervisor run on multi-core at the same time
- To: xdongp <xdongp@xxxxxxxxx>, xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
- From: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
- Date: Sun, 19 Oct 2008 10:12:51 +0100
- Cc:
- Delivery-date: Sun, 19 Oct 2008 02:13:22 -0700
- List-id: Xen developer discussion <xen-devel.lists.xensource.com>
- Thread-index: AckxytyKGyUWx52+Ed2zPQAWy6hiGQ==
- Thread-topic: [Xen-devel] can hypervisor run on multi-core at the same time
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 there’s little contention when different VMs run on different cores.
-- Keir
On 19/10/08 09:24, "xdongp" <xdongp@xxxxxxxxx> 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
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