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Re: Re: [Xen-devel] if hvm better than pv?why dd in hvm vm no larger than 50M, while pv greater than 50



On Tue, Apr 26, 2011 at 04:48:31PM +0800, yue wrote:
> 1.i find  pv disk'throughput is better than hvm. i want to know why?

Pick up "The definitive guide to the Xen hypervisor" book.
> 2.pci passthrough  is said to improve performance, if it is default method of 
> IO-process.

Sure. But it also makes migration difficult.
>  3.do you familar with ocfs2's source code?

No.

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