Exokernel: an operating system architecture for application-level resource management
SOSP '95 Proceedings of the fifteenth ACM symposium on Operating systems principles
Virtualizing I/O Devices on VMware Workstation's Hosted Virtual Machine Monitor
Proceedings of the General Track: 2002 USENIX Annual Technical Conference
Memory resource management in VMware ESX server
ACM SIGOPS Operating Systems Review - OSDI '02: Proceedings of the 5th symposium on Operating systems design and implementation
Xen and the art of virtualization
SOSP '03 Proceedings of the nineteenth ACM symposium on Operating systems principles
High performance VMM-bypass I/O in virtual machines
ATEC '06 Proceedings of the annual conference on USENIX '06 Annual Technical Conference
Proceedings of the 14th international conference on Architectural support for programming languages and operating systems
Extract and infer quickly: Obtaining sector geometry of modern hard disk drives
ACM Transactions on Storage (TOS)
Difference engine: harnessing memory redundancy in virtual machines
OSDI'08 Proceedings of the 8th USENIX conference on Operating systems design and implementation
mClock: handling throughput variability for hypervisor IO scheduling
OSDI'10 Proceedings of the 9th USENIX conference on Operating systems design and implementation
Cells: a virtual mobile smartphone architecture
SOSP '11 Proceedings of the Twenty-Third ACM Symposium on Operating Systems Principles
ELI: bare-metal performance for I/O virtualization
ASPLOS XVII Proceedings of the seventeenth international conference on Architectural Support for Programming Languages and Operating Systems
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The traditional disk partitioning scheme commonly used in a virtualization system divides a disk into multiple partitions in a coarse-grained manner, which causes a long seek distance when multiple virtual machines run concurrently. To overcome this drawback, we propose two novel schemes, called onion and pizza. The onion scheme makes partitions in an interleaved way, which leads to not only reduce a seek distance but also enhance fairness among virtual machines. The pizza scheme goes one step further that makes partitions in a vertical fashion, not a horizontal fashion, so that requests from different virtual machines can be served in a same cylinder. In additional, new sector mapping is devised for efficiency of the two schemes. Real implementation based experiments have shown that our proposal can enhance I/O bandwidth up to 95% with an average of 25%, compared with the traditional scheme.