Performance analysis of ASACS based on SHLPN
Ruchuan Wang · Journal of Communications · 2006
After comparing the architecture of automatic self-allocating cluster system (ASACS) with the architecture of traditional system of Web servers cluster, a novel stochastic high-level Petri nets (SHLPN) model for the ASACS was proposed, and the refined design scheme for the model was presented. Also two models of load-balance scheduling poli-cies in the traditional system of Web servers cluster and the model of scheduling policy in ASACS were described. At last, the throughput and the response time and the refuse probability for the three kinds of scheduling policies in server cluster system via the tool of SPNP were analyzed numerically. It was proved that the server cluster system which adopts the automatic self-allocating (ASA) schedule policy can satisfy with the requirement of QoS rather than the traditional sys-tem of Web servers cluster which adopts the load-balance scheduling policy.