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| Content Provider | ACM Digital Library |
|---|---|
| Author | Duan, Jiangang Lv, Hui Dong, Yaozu Tian, Kevin |
| Abstract | Server consolidation, by running multiple virtual machines on top of a single platform with virtualization, provides an efficient solu-tion to parallelism and utilization of modern multi-core processors system. However, the performance and scalability of server con-solidation solution on modern massive advanced server is not well addressed. In this paper, we conduct a comprehensive study of Xen per-formance and scalability characterization running SPECvirt_sc2010, and identify that large memory and cache footprint, due to the unnecessary high frequent context switch, introduce additional challenges to the system performance and scalability. We propose two optimizations (dynamically-allocable tasklets and context-switch rate controller) to improve the performance. The results show the improved memory and cache efficiency with a reduction of the overall CPI, resulting in an improvement of server consolidation capability by 15% in SPECvirt_sc2010. In the meantime, our optimization achieves an up to 50% acceleration of service response, which greatly improves the QoS of Xen virtualization solution. |
| Starting Page | 15 |
| Ending Page | 26 |
| Page Count | 12 |
| File Format | |
| ISBN | 9781450311762 |
| DOI | 10.1145/2151024.2151030 |
| Language | English |
| Publisher | Association for Computing Machinery (ACM) |
| Publisher Date | 2012-03-03 |
| Publisher Place | New York |
| Access Restriction | Subscribed |
| Subject Keyword | Server consolidation Scheduler Performance optimization Virtualization Specvirt_sc2010 |
| Content Type | Text |
| Resource Type | Article |
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