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Re: [Xen-devel] can hypervisor run on multi-core at the same time

from [Keir Fraser] [Permanent Link][Original]
To: xdongp <xdongp@xxxxxxxxx>, xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: Re: [Xen-devel] can hypervisor run on multi-core at the same time
From: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
Date: Sun, 19 Oct 2008 10:12:51 +0100
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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 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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