Proceedings of the seventeenth ACM symposium on Operating systems principles
Xen and the art of virtualization
SOSP '03 Proceedings of the nineteenth ACM symposium on Operating systems principles
Diagnosing performance overheads in the xen virtual machine environment
Proceedings of the 1st ACM/USENIX international conference on Virtual execution environments
Intel Virtualization Technology
Computer
Measuring CPU overhead for I/O processing in the Xen virtual machine monitor
ATEC '05 Proceedings of the annual conference on USENIX Annual Technical Conference
Optimizing network virtualization in Xen
ATEC '06 Proceedings of the annual conference on USENIX '06 Annual Technical Conference
High performance and scalable I/O virtualization via self-virtualized devices
Proceedings of the 16th international symposium on High performance distributed computing
Comparison of the three CPU schedulers in Xen
ACM SIGMETRICS Performance Evaluation Review
Scheduling I/O in virtual machine monitors
Proceedings of the fourth ACM SIGPLAN/SIGOPS international conference on Virtual execution environments
Bridging the gap between software and hardware techniques for I/O virtualization
ATC'08 USENIX 2008 Annual Technical Conference on Annual Technical Conference
On the Design and Implementation of a Cache-Aware Multicore Real-Time Scheduler
ECRTS '09 Proceedings of the 2009 21st Euromicro Conference on Real-Time Systems
Exploiting Parallelism with Dependence-Aware Scheduling
PACT '09 Proceedings of the 2009 18th International Conference on Parallel Architectures and Compilation Techniques
IISWC '09 Proceedings of the 2009 IEEE International Symposium on Workload Characterization (IISWC)
SR-IOV networking in Xen: architecture, design and implementation
WIOV'08 Proceedings of the First conference on I/O virtualization
A new TCB cache to efficiently manage TCP sessions for web servers
Proceedings of the 6th ACM/IEEE Symposium on Architectures for Networking and Communications Systems
Tackling the challenges of server consolidation on multi-core systems
IISWC '10 Proceedings of the IEEE International Symposium on Workload Characterization (IISWC'10)
Optimizing virtual machines using hybrid virtualization
Proceedings of the 2011 ACM Symposium on Applied Computing
The design and implementation of an operating system to support distributed multimedia applications
IEEE Journal on Selected Areas in Communications
The Journal of Supercomputing
| Hi-index | 0.00 |
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.