Incremental scheduling of mixed workloads in multimedia information servers

作     者：Nerjes, G Muth, P Paterakis, M Romboyannakis, Y Triantafillou, P Weikum, G 

作者机构：Swiss Fed Inst Technol Inst Informat Syst CH-8092 Zurich Switzerland Univ Saarland Dept Comp Sci D-66041 Saarbrucken Germany Tech Univ Crete Dept Elect & Comp Engn Chania Greece 

出 版 物：《MULTIMEDIA TOOLS AND APPLICATIONS》 (多媒体工具和应用)

年 卷 期：2000年第11卷第1期

页      面：9-33页

核心收录：

学科分类：0808[工学-电气工程] 08[工学] 0835[工学-软件工程] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：ESPRIT 

主　　题：multimedia server disk scheduling incremental scheduling SCAN algorithm mixed workload mixed traffic performance evaluation 

摘      要：In contrast to pure video servers, advanced multimedia applications such as digital libraries or teleteaching exhibit a mixed workload with massive access to conventional, discrete data such as text documents, images and indexes as well as requests for continuous data, like video and audio data. In addition to the service quality guarantees for continuous data requests, quality-conscious applications require that the response time of the discrete data requests stay below some user-tolerance threshold. In this paper, we study the impact of different disk scheduling policies on the service quality for both continuous and discrete data. We provide a framework for describing various policies in terms of few parameters, and we develop a novel policy that is experimentally shown to outperform all other policies.