[dpdk-users] Virtio / Vhost-user alternative

[longtb5 at viettel.com.vn]

Hi everyone,

Suppose QEMU and DPDK support is not a requirement, is there any alternative
that could theoretically outperform virtio/vhost-user? 

I'm asking this weird question because the existing virtio/vhost-user
interface, while regarded as the de facto path to VM, is currently one of
the major bottlenecks in virtual switching system. How should one go about
sending traffic as fast as possible from host to VM without utilizing
hardware-based solutions such as SRIOV?

Best regards,
-BL