Tracking requirements for augmented reality
Communications of the ACM - Special issue on computer augmented environments: back to the real world
Scheduling algorithms for modern disk drives
SIGMETRICS '94 Proceedings of the 1994 ACM SIGMETRICS conference on Measurement and modeling of computer systems
BubbleUp: low latency fast-scan for media servers
MULTIMEDIA '97 Proceedings of the fifth ACM international conference on Multimedia
A framework for supporting previewing and VCR operations in a low bandwidth environment
MULTIMEDIA '97 Proceedings of the fifth ACM international conference on Multimedia
Cello: a disk scheduling framework for next generation operating systems
SIGMETRICS '98/PERFORMANCE '98 Proceedings of the 1998 ACM SIGMETRICS joint international conference on Measurement and modeling of computer systems
On Scheduling Atomic and Composite Continuous Media Objects
IEEE Transactions on Knowledge and Data Engineering
Real-time filesystems. Guaranteeing timing constraints for disk accesses in RT-Mach
RTSS '97 Proceedings of the 18th IEEE Real-Time Systems Symposium
Towards higher disk head utilization: extracting free bandwidth from busy disk drives
OSDI'00 Proceedings of the 4th conference on Symposium on Operating System Design & Implementation - Volume 4
Trading capacity for performance in a disk array
OSDI'00 Proceedings of the 4th conference on Symposium on Operating System Design & Implementation - Volume 4
Design and Implementation of Semi-preemptible IO
FAST '03 Proceedings of the 2nd USENIX Conference on File and Storage Technologies
Design and implementation of semi-preemptible IO
FAST'03 Proceedings of the 2nd USENIX conference on File and storage technologies
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Supporting preemptible disk access is essential for interactive multimedia applications that require short response time. In this study, we propose Virtual IO, an abstraction for disk IO, that transforms a non-preemptible IO request into a preemptible one. In order to achieve its objective efficiently, Virtual IO uses disk profiling to obtain accurate and detailed knowledge about the disk. Upon implementation of Virtual IO, we show that not only does Virtual IO enable highly preemptible disk access, but it does so with little or no loss in disk throughput.