Abstract
Next generation information appliances are required to handle real-time audio/video playback and in the mean time should be able to handle text based requests such as database search, file recording, etc. Although several techniques are presented to address this problem, most of them are rather theoretical to be employed into practical systems as they are. In this paper, we present our experience in developing the file system which can efficiently handle mixed workload. To this end, we develop practical I/O scheduling mechanism to prioritize the incoming disk I/O requests: deadline-driven I/O scheduler and admission control module. We also discuss some issues on QoS enhanced I/O semantics. The proto-type file system Apollon is developed on Linux Operating System. Compared to legacy system, Apollon exhibits superior performance in guaranteeing the QoS requirement of real-time requests.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Shenoy, P., Goyal, P., Vin, H.: Architectural considerations for next generation file systems. In: Proceedings of ACM Multimedia Conference, Orlando, FL, USA, pp. 457–467 (1999)
Shenoy, P.: Cello: a disk scheduling framework for next generation operating system. Real Time Systems Journal (2002)
Wijayaratne, R., Reddy, A.L.: Providing QoS guarantees or disk I/O. Proceedings of ACM/Springer Journal on Multimedia Systems (2000)
Won, Y.J., Ryu, Y.S.: Handling sporadic tasks in multimedia file system. In: Proceedings of the eighth ACM International Conference on Multimedia, pp. 462–464 (2000)
Reddy, A.L., Wyllie, J.: Disk scheduling in multimedia I/O system. In: Proceedings of ACM Multimedia 1993, Anaheim, CA, pp. 225–234 (1993)
Gopalan, K.: Real-time disk scheduling using deadline sensitive SCAN. Technical Report TR-92, Experimental Computer Systems Labs, Dept. of Computer Science, State University of New York, Stony Brook (2001)
Sundaram, V., Chandra, A., Goyal, P., Shenoy, P., Sahni, J., Vin, H.: Application performance in the QLinux multimedia operating system. In: Proceedings of the Eighth ACM Conference on Multimedia, Los Angeles, CA, pp. 127–136 (2000)
Dimitrijevic, Z., Rangaswami, R.: Quality of service support for real-time storage systems. In: Proceedings of International IPSI 2003 Conference, St. Stefan, Montenegro (2003)
http://www.dmclab.hanyang.ac.kr/research/project/hermes-q/hermes-q_overview.htm
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2005 Springer-Verlag Berlin Heidelberg
About this paper
Cite this paper
Kim, T., Won, Y., Kim, D., Koh, K., Shin, Y.H. (2005). Apollon : File System Level Support for QoS Augmented I/O. In: Ho, YS., Kim, HJ. (eds) Advances in Multimedia Information Processing - PCM 2005. PCM 2005. Lecture Notes in Computer Science, vol 3768. Springer, Berlin, Heidelberg. https://doi.org/10.1007/11582267_6
Download citation
DOI: https://doi.org/10.1007/11582267_6
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-30040-3
Online ISBN: 978-3-540-32131-6
eBook Packages: Computer ScienceComputer Science (R0)