Disco: running commodity operating systems on scalable multiprocessors
ACM Transactions on Computer Systems (TOCS)
Xen and the art of virtualization
SOSP '03 Proceedings of the nineteenth ACM symposium on Operating systems principles
Memory resource management in VMware ESX server
OSDI '02 Proceedings of the 5th symposium on Operating systems design and implementationCopyright restrictions prevent ACM from being able to make the PDFs for this conference available for downloading
Understanding The Linux Kernel
Understanding The Linux Kernel
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
Singleton: system-wide page deduplication in virtual environments
Proceedings of the 21st international symposium on High-Performance Parallel and Distributed Computing
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The memory size limits the scalability of virtual machine systems. There have been some researches about sharing identical pages among guest systems to reduce memory usage. However, they require memory overcommitment feature through swap mechanism which some virtual machines including Xen do not have. In this paper a new approach is proposed to share identical pages with designated sharing area. This approach reduces the memory usage as well as redundant I/O operations. Moreover, understanding the characteristics of certain shared pages becomes easier. The conceptional design was evaluated by simulation based on real-world applications.