1 research outputs found
Per-Client Network Performance Isolation in VDE-based Cloud Computing Servers
Authors' final versionIn a cloud server where multiple virtual machines owned by different clients are cohosted,
excessive traffic generated by a small group of clients may well jeopardize the
quality of service of other clients. It is thus very important to provide per-client network
performance isolation in a cloud computing environment. Unfortunately, the existing
techniques are not effective enough for a huge cloud computing system since it is difficult to
adopt them in a large scale and they often require non-trivial modification to the established
network protocols. To overcome such difficulties, we propose per-client network
performance isolation using VDE (Virtual Distributed Ethernet) as a base framework. Our
approach begins with per-client weight specification and support client-aware fair share
scheduling and packet dispatching for both incoming and outgoing traffic. It also provides
hierarchical fairness between a client and its virtual machines. Our approach supports full
virtualization of a guest OS, wide scale adoption, limited modification to the existing system,
low run-time overhead and work-conserving servicing. Our experimental results show the
effectiveness of the proposed approach. Every client received at least 99.4% of its bandwidth
share as specified by its weight.OAIID:oai:osos.snu.ac.kr:snu2012-01/102/0000004193/4SEQ:4PERF_CD:SNU2012-01EVAL_ITEM_CD:102USER_ID:0000004193ADJUST_YN:NEMP_ID:A005174DEPT_CD:4541CITE_RATE:.175FILENAME:11-12-23 JISE-VDE.pdfDEPT_NM:์ ๊ธฐยท์ปดํจํฐ๊ณตํ๋ถEMAIL:[email protected]_YN:YCONFIRM: