1. A computer-implemented method for generating a queuing model, comprising: receiving, at a computing device, trace data provided in a trace log file corresponding to a server; parameterizing, using the computing device, a first Markovian Arrival Process (MAP) model based on the trace data; parameterizing, using the computing device, a second MAP model based on the trace data; defining a queuing model that models a performance of the server and that includes the first MAP model and the second MAP model; and storing the queuing model in computer-readable memory.