Up: A Top-10 Approach to
In this paper we present a Top-10 approach for prefetching World Wide Web
documents. Top-10 prefetches only the most popular
documents (that is where the name comes from) and only to clients
that will be able to use them.
We use trace-driven simulations of server traces to evaluate the
costs and benefits of our approach. Based on our experimental observations
The Top-10 approach to prefetching may result in significant
Our experimental results suggest that Top-10 manages to prefetch
(up to) 60% of future requests, with little (less than 20%)
corresponding increase in traffic (see fig. 10).
Top-10 has shown to be robust over a wide variety of parameters and server
loads. We have used traces from 5 different servers both in Europe and
Top-10 always managed to result in good performance for all traces without
significant traffic increase.
Prefetching the most popular documents is a simple but
effective prefetch heuristic. It requires very little effort to
be computed on the server side, while it provides performance
comparable to (if not better than) previously proposed
sophisticated prefetching heuristics.
Fri Nov 1 16:38:26 EET 1996