Dynamic performance stubs to simulate the main memory behavior of applications

Dynamic performance stubs provide a framework to simulate the performance behavior of software modules and functions. Hence, they can be used as an extension to software performance engineering methodologies. The methodology of dynamic performance stubs targets to gain oriented performance improvement. Other applications include the identification of "hidden" bottlenecks and the prioritization of optimization alternatives. Main memory stubs have been developed to extend the simulation possibilities of the dynamic performance stubs framework. They are able to simulate the heap and stack behavior of software modules or functions. This paper evaluates an algorithm to generate the simulation data file, which serves as input for the main memory stubs simulation algorithm. Moreover, it presents an automatic error correction algorithm to consider the results from the calibration functions to improve the simulation results. Additionally, a proof of concept is given to depict the results of the simulation data file generation and the automatic error correction algorithm. This paper shows that, it is possible to generate the simulation data file as well as to optimize the simulation data to compensate inaccuracies in order to create main memory stubs.