Hybrid caching strategy for streaming media files

Jussara M. Almeida; Derek L. Eager; Mary K. Vernon

doi:10.1117/12.410909

22 December 2000 Hybrid caching strategy for streaming media files

Jussara M. Almeida, Derek L. Eager, Mary K. Vernon

Proceedings Volume 4312, Multimedia Computing and Networking 2001; (2000) https://doi.org/10.1117/12.410909
Event: Photonics West 2001 - Electronic Imaging, 2001, San Jose, CA, United States

Abstract

A recently proposed streaming media file caching algorithm, called Resource Based Caching (RBC), considers the impact of both file size and required delivery bandwidth in making cache insertion and replacement decisions. Previous comparisons between RBC and the least-frequency-used (LFU) policy conclude that RBC provides a better byte hit ratio in the cache. This paper revisits this policy comparison over a much broader region of the system design space than previously considered. The results provide more complete insight into the behavior of RBC, and support new conclusions about the relative performance of RBC and LFU. A new policy, Pooled RBC, is proposed. Pooled RBC includes three improvements to the original RBC policy and has significantly better performance than RBC. Finally, a new hybrid LFU/interval caching strategy is proposed. The new hybrid policy is significantly simpler to implement than RBC and performs as well or better than both Pooled RBC and LFU.

Citation Download Citation

Jussara M. Almeida, Derek L. Eager, and Mary K. Vernon "Hybrid caching strategy for streaming media files", Proc. SPIE 4312, Multimedia Computing and Networking 2001, (22 December 2000); https://doi.org/10.1117/12.410909

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