Affiliation:
1. University of Ioannina, Ioannina, Greece
2. University of Toronto, Toronto, Ont., Canada
Abstract
We describe the design and implementation of the Exedra continuous media server, and experimentally evaluate alternative resource management policies using a prototype system that we built. Exedra has been designed to provide scalable and efficient support for variable bit-rate media streams whose compression efficiency leads to reduced storage space and bandwidth requirements in comparison to constant bit-rate streams of equivalent quality. We examine alternative disk striping policies, and quantify the benefits of innovative techniques for storage space allocation, buffer management, and resource reservation, which we developed to achieve both predictability and high-performance in handling disk and network data transfers of variable size. Additionally, we investigate the differences between diverse data replication schemes over disk arrays, and compare methods for disk access time reservation that enable tolerance of disk failures at minimal cost. Overall, we demonstrate the feasibility of building network media servers that exploit the latest advances in media compression technology towards reducing the cost of wide-scale streaming services for stored data.
Publisher
Association for Computing Machinery (ACM)
Subject
Hardware and Architecture
Reference60 articles.
1. Minerva
2. Anastasiadis S. V. 2001. Scalable support for variable bit-rate streams in a continuous media server. Ph.D. thesis Department of Computer Science University of Toronto Toronto ON Canada. Anastasiadis S. V. 2001. Scalable support for variable bit-rate streams in a continuous media server. Ph.D. thesis Department of Computer Science University of Toronto Toronto ON Canada.
Cited by
3 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献