TY  - JOUR
T1  - Para-virtualized Library for Bare-metal Network Performance in Virtualized Environment
AU  - Lee, Dongwoo 
AU  - Cho, Youngjoong 
AU  - Eom, Young Ik 
JO  - Journal of KIISE, JOK
PY  - 2014
DA  - 2014/9/14
DO  - 
KW  - library
KW  - I/O performance
KW  - network
KW  - virtualization
AB  - Now, virtualization is no more emerging research area, and we can easily find its application in our circumstance. Nevertheless, I/O workloads are reluctant to be applied in virtual environment since they still suffer from unacceptable performance degradation due to virtualization latency. Many previous papers identified that virtual I/O overhead is mainly caused by exits and redundant I/O stack, and proposed several techniques to reduce them. However, they still have some limitations. In this paper, we introduce a novel I/O virtualization framework which improves I/O performance by exploiting multicore architecture. We applied our framework to the virtual network, and it improves TCP throughput up to 169%, and decreases UDP latency up to 38% on the network with the 10Gbps NIC.