Evaluation of Software and Hardware Resource Topology of System Based on Request Processing Simulation

Abstract

In order to swiftly evaluate the influence of the modifications derived from system's software and hardware topology on the system performance, we proposed a method for system performance evaluation in this paper. Firstly, we divided the request-handling process of system into two phases: calling software components by requests and occupying hardware resources by component operation, then we constructed a probabilistic model for system behavior in these two stages by taking system topology and request distribution as variates, and at last we created a simulation algorithm based on this probabilistic model which could be employed in system performance evaluation. This evaluation algorithm can be used in scenarios where the hardware resources of system are sufficient and concurrent requests are in big number, at the same time, it can reduce the cost for and speed up the performance evaluation because it does not need to build a real system.