Browsing by Author "Crovella, Mark E."

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Browsing by Author "Crovella, Mark E."

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  • Application-Level Document Caching in the Internet
    Bestavros, Azer; Carter, Robert L.; Crovella, Mark E.; Cunha, Carlos R.; Heddaya, Abdelsalam; Mirdad, Sulaiman A. (Boston University Computer Science Department, 1995-01-15)
    With the increasing demand for document transfer services such as the World Wide Web comes a need for better resource management to reduce the latency of documents in these systems. To address this need, we analyze the ...
  • Characteristics of WWW Client-based Traces
    Cunha, Carlos R.; Bestavros, Azer; Crovella, Mark E. (Boston University Computer Science Department, 1995-07-18)
    The explosion of WWW traffic necessitates an accurate picture of WWW use, and in particular requires a good understanding of client requests for WWW documents. To address this need, we have collected traces of actual ...
  • Connection Scheduling in Web Servers
    Crovella, Mark E.; Frangioso, Robert; Harchol-Balter, Mor (Boston University Computer Science Department, 1999-03-31)
    Under high loads, a Web server may be servicing many hundreds of connections concurrently. In traditional Web servers, the question of the order in which concurrent connections are serviced has been left to the operating ...
  • Dynamic Server Selection in the Internet
    Crovella, Mark E.; Carter, Robert L. (Boston University Computer Science Department, 1995-06-30)
    As distributed information services like the World Wide Web become increasingly popular on the Internet, problems of scale are clearly evident. A promising technique that addresses many of these problems is service (or ...
  • Dynamic Server Selection using Bandwidth Probing in Wide-Area Networks
    Carter, Robert L.; Crovella, Mark E. (Boston University Computer Science Department, 1996-03-18)
    Replication is a commonly proposed solution to problems of scale associated with distributed services. However, when a service is replicated, each client must be assigned a server. Prior work has generally assumed that ...
  • Explaining World Wide Web Traffic Self-Similarity
    Crovella, Mark E.; Bestavros, Azer (Boston University Computer Science Department, 1995-10-12)
    Recently the notion of self-similarity has been shown to apply to wide-area and local-area network traffic. In this paper we examine the mechanisms that give rise to self-similar network traffic. We present an explanation ...
  • Task Assignment in a Distributed System: Improving Performance by Unbalancing Load
    Crovella, Mark E.; Harchol-Balter, Mor; Murta, Cristina D. (Boston University Computer Science Department, 1997-10-31)
    We consider the problem of task assignment in a distributed system (such as a distributed Web server) in which task sizes are drawn from a heavy-tailed distribution. Many task assignment algorithms are based on the heuristic ...
  • To Queue or Not to Queue: When Queueing is Better Than Timesharing in a Distributed System
    Harchol-Balter, Mor; Crovella, Mark E.; Murta, Cristina D. (Boston University Computer Science Department, 1997-10-31)
    We examine the question of whether to employ the first-come-first-served (FCFS) discipline or the processor-sharing (PS) discipline at the hosts in a distributed server system. We are interested in the case in which service ...