Simulation of a Video-on-Demand System


Song Bac Toh. Simulation of a Video-on-Demand System. Technical Report number PCS-TR95-260, Dartmouth Computer Science, Hanover, NH, June 1995. ©Copyright the author. Available as Dartmouth Computer Science Technical Report PCS-TR95-260. Senior Honors Thesis.


This paper presents a simulation study of a video-on-demand system. The focus of the study is the effectiveness of different caching strategies on a video-on-demand system with two levels of cache, RAM and disks, in front of a tape library. Using an event-driven simulator, I show that caching was helpful in increasing the service capacity of the system. On-demand caching showed its advantages especially when the requests were clustered around a few popular titles (in other words, there was temporal locality).

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