Performance impact of operating systems' caching parameters on parallel file systems
Eduardo Camilo Inacio, Mário A. R. Dantas, Francieli Zanon Boito, Philippe O. A. Navaux, Douglas Dyllon Jerônimo de Macedo · 2015
This research work investigates the peformance impact of operating systems' (OS) caching parameters on a parallel file system (PFS). Through an extensive experimental analysis, an analytical performance model is proposed in order to reflect caching effects on performance of file write operations. A qualitative and quantitative evaluation of 855 test cases over 3 different platforms was performed. Results indicate that the proposed model is effective in representing caching effects, identifying both situation and intensity of performance degradation. Observed mean absolute percentage error (MAPE) of predicted values is less than 36%.