Dynamic Cache Control
In current proxies, the selection of a cache replacement algorithm
is arbitrary and static. An individual proxy will benefit from an
algorithm that is designed and selected to optimize the server's unique
usage profile. The LSAM proxy will provide the necessary tools to
select and employ a replacement algorithm based on current usage conditions.
Further, the LSAM proxy will also be a test bed for exploring new types
of replacement algorithms.
The LSAM proxy offers the following features:
Support for algorithm experiments
The LSAM proxy implements a variety of replacement policies that
can be used interchangably.
Instantiate alternate policies
The LSAM proxy provides the framework for creating new replacement
policies. Proposed algorithms can be quickly implemented and tested.
Real world testing environment
Because the LSAM proxy is a working proxy server, it allows algorithm
experimentation in a real enviroment. Algorithm developers do not
have to rely on simulation or traces to explore new ideas.
Montioring to analyze efficiency
Algorithm to select and control replacement policy algorithm
The LSAM proxy is capable of selecting an optimal replacement policy
for the cache based on proxy usage. The server administrator does
not have to monitor the server or make adjustments.
Feedback to meta-algorithm
The LSAM proxy monitors document request patterns and network conditions
in order to determine replacement policies.
Detect proxy "purpose"
Last modified: Wed Feb 11 15:55:31 1998
Page maintainer: the LSAM
Copyright © 1996 by USC/ISI