Broadcast disks

Swarup Acharya, Rafael Alonso, Michael Franklin, Stanley Zdonik
1995 SIGMOD record  
This paper proposes the use of repetitive broadcast as a way of augmenting~he memory hierarchy of clients in an asyrnmdric communication environment. We describe a new technique called "Broadcast Disks" for structuring the broadcast in a way that provides improved performance for non-unformly accessed data. The Broadcast Disk superimposes multiple disks spinning at different speeds on a single broadcast channel-in e~ect creating an arbitrarily fine-grainedmemory hierarchy. In addition to
more » ... ng and defining the mechanism, a main result of this work is that exploiting the potential of the broadcast structure requires a reevaluation of basic cache managementpolicies. We examine several "pure" cache management policies and develop and measure implementable approximations to these policies. These results and others arepresented in a set of simulation studies that substantiates the basic idea and develops some of the intuitions required to design a particular broadcast program.
doi:10.1145/568271.223816 fatcat:nxy6pbdsjzgyxfejam6uf6yp3i