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Re: [Xen-devel] Is there any mechanism in XEN can use to limit the memor

To: 贺鹏 <xnhp0320@xxxxxxxxx>
Subject: Re: [Xen-devel] Is there any mechanism in XEN can use to limit the memory bandwidth of each domain?
From: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
Date: Mon, 6 Dec 2010 12:55:57 -0500
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On Mon, Dec 06, 2010 at 06:00:14PM +0800, 贺鹏 wrote:
> Hi, all:
>         As we all know, Xen can alloc different amount of memory to
> different VMs, but these VMs access memory by one shared memory bus, which
> means if one VM access the memory very frequently, the bandwidth of the
> memory shared by the other VM will decrease.
>         So I'm wondering is there any mechanism in XEN can reserve the limit
> bandwidth of the memory for different VMs?

As in NUMA? There is work to make that be provided to Xen guests.

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