Measuring the performance of a Distributed Quota Enforcement system for spam control
Author(s)
Zamfirescu-Pereira, John Dalbert![Thumbnail](/bitstream/handle/1721.1/37095/84843065-MIT.pdf.jpg?sequence=5&isAllowed=y)
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Alternative title
Performance of a DQE system for spam control
Other Contributors
Massachusetts Institute of Technology. Dept. of Electrical Engineering and Computer Science.
Advisor
Hari Balakrishnan.
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Show full item recordAbstract
In this thesis, I evaluate Distributed Quota Enforcement (DQE), a system for enforcing quotas on e-mail use as a spam control mechanism. I briefly describe the design and implementation of DQE, and then evaluate the enforcer's performance in several ways. My evaluation includes: the capacity of a single node; how the enforcer scales with added nodes; how well the enforcer tolerates faults; the relationship between the enforcer's size and time to respond (request latency); and the impact of globally distributing the enforcer's nodes. Salient features of the evaluation include: an enforcer composed to a few thousand high-end PCs can handle the world's current e-mail volume; the enforcer is resistant to failures: even with 20% of its nodes down, stamps are reused on average only 1.5 times; the main bottleneck in the enforcer's performance is disk seeks.
Description
Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2006. Includes bibliographical references (p. 67-72).
Date issued
2006Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer SciencePublisher
Massachusetts Institute of Technology
Keywords
Electrical Engineering and Computer Science.