We analysis the key issues in inter-HVM network performance on Xen.

We propose a novel hardware-independent approach which pushes data like an express to boost inter-HVM network performance.

Our new approach is designed to use less shared memory but can achieve higher performance.

We design and implement a prototype system to demonstrate our idea.

Through comparison with PV-on-HVM and SR-IOV, evaluation shows our prototype is in big advance on network throughput.