Re: [RFC] generic NVMe target and NVMe loop driver

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On Mon, Nov 16, 2015 at 12:08:58AM -0800, Ming Lin wrote:
> But the tests I have done so far didn't show competitive performance
> compared with vhost-scsi. Maybe because the mmio thing is slow.

It is.  Take a look at the google patches for the NVMe even index
extension, which make it behave a lot more like virtio.
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