Software Physical/Virtual Rx Queue Mapping Toward High-Performance Containerized Networking

Softwarization of Network Functions (NFs) accelerates automated deployment and management services on next-gen networks. Combining flexibility high-performance is a vital requirement for Virtualisation (NFV); however, many studies have demonstrated that containerization or virtualization NFs severely degrades the fundamental efficiency packet forwarding. Virtual network I/O, mechanism transferring between guest host, has been seen as performance bottleneck in PVP (Physical-Virtual-Physical) datapath, one main causes this deterioration copy them. Various techniques, such zero-copy, pass-through, hardware offloading, examined to alleviate overhead. However, existing designs implementations incur pragmatic issues, compatibility, manageability, insufficient quality performance. We propose yet another design implementation zero-copy/pass-through acceleration (named IOVTee) resolve real-world problems well enhance forwarding efficiency. IOVTee takes advantage pre-processing virtual switches with achieving zero-copy receive (Rx) path. The pluggable style vhost-user (the de-facto I/O) enables our approach be transparent both containers/VMs switches. In article, we explain heart IOVTee, fully software-based Rx queue mapping (between physical virtual) concept DMA Write-through (to NF). Our evaluation results showed applying drastically increased datapath (by 45% 98% traffic 64-byte 1514-byte packets respectively).