Connection caching technique with host grouping

We present an efficient connection caching scheme in a distributed system where we divide the system into several host groups possibly overlapping and the connection between the hosts in the same group is kept prior to others. Every host group consists of hosts which have heavy intercommunication. We present performance evaluation of the proposed connection caching scheme in several aspects including group size, grouping and types of the group. Simulation results show that host grouping is effective in every performance criterion and that proper grouping of hosts enhances the performance. We also present a simple Markov process model of our scheme and give some analysis results which are consistent with the simulation results